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2017-03-23Merge tag v4.4.55 into branch 'msm-4.4'Blagovest Kolenichev
refs/heads/tmp-28ec98b: Linux 4.4.55 ext4: don't BUG when truncating encrypted inodes on the orphan list dm: flush queued bios when process blocks to avoid deadlock nfit, libnvdimm: fix interleave set cookie calculation s390/kdump: Use "LINUX" ELF note name instead of "CORE" KVM: s390: Fix guest migration for huge guests resulting in panic mvsas: fix misleading indentation serial: samsung: Continue to work if DMA request fails USB: serial: io_ti: fix information leak in completion handler USB: serial: io_ti: fix NULL-deref in interrupt callback USB: iowarrior: fix NULL-deref in write USB: iowarrior: fix NULL-deref at probe USB: serial: omninet: fix reference leaks at open USB: serial: safe_serial: fix information leak in completion handler usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers usb: host: xhci-dbg: HCIVERSION should be a binary number usb: gadget: function: f_fs: pass companion descriptor along usb: dwc3: gadget: make Set Endpoint Configuration macros safe usb: gadget: dummy_hcd: clear usb_gadget region before registration powerpc: Emulation support for load/store instructions on LE tracing: Add #undef to fix compile error MIPS: Netlogic: Fix CP0_EBASE redefinition warnings MIPS: DEC: Avoid la pseudo-instruction in delay slots mm: memcontrol: avoid unused function warning cpmac: remove hopeless #warning MIPS: ralink: Remove unused rt*_wdt_reset functions MIPS: ralink: Cosmetic change to prom_init(). mtd: pmcmsp: use kstrndup instead of kmalloc+strncpy MIPS: Update lemote2f_defconfig for CPU_FREQ_STAT change MIPS: ip22: Fix ip28 build for modern gcc MIPS: Update ip27_defconfig for SCSI_DH change MIPS: ip27: Disable qlge driver in defconfig MIPS: Update defconfigs for NF_CT_PROTO_DCCP/UDPLITE change crypto: improve gcc optimization flags for serpent and wp512 USB: serial: digi_acceleport: fix OOB-event processing USB: serial: digi_acceleport: fix OOB data sanity check Linux 4.4.54 drivers: hv: Turn off write permission on the hypercall page fat: fix using uninitialized fields of fat_inode/fsinfo_inode libceph: use BUG() instead of BUG_ON(1) drm/i915/dsi: Do not clear DPOUNIT_CLOCK_GATE_DISABLE from vlv_init_display_clock_gating fakelb: fix schedule while atomic drm/atomic: fix an error code in mode_fixup() drm/ttm: Make sure BOs being swapped out are cacheable drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058 drm/ast: Fix AST2400 POST failure without BMC FW or VBIOS drm/ast: Call open_key before enable_mmio in POST code drm/ast: Fix test for VGA enabled drm/amdgpu: add more cases to DCE11 possible crtc mask setup mac80211: flush delayed work when entering suspend xtensa: move parse_tag_fdt out of #ifdef CONFIG_BLK_DEV_INITRD pwm: pca9685: Fix period change with same duty cycle nlm: Ensure callback code also checks that the files match target: Fix NULL dereference during LUN lookup + active I/O shutdown ceph: remove req from unsafe list when unregistering it ktest: Fix child exit code processing IB/srp: Fix race conditions related to task management IB/srp: Avoid that duplicate responses trigger a kernel bug IB/IPoIB: Add destination address when re-queue packet IB/ipoib: Fix deadlock between rmmod and set_mode mnt: Tuck mounts under others instead of creating shadow/side mounts. net: mvpp2: fix DMA address calculation in mvpp2_txq_inc_put() s390: use correct input data address for setup_randomness s390: make setup_randomness work s390: TASK_SIZE for kernel threads s390/dcssblk: fix device size calculation in dcssblk_direct_access() s390/qdio: clear DSCI prior to scanning multiple input queues Bluetooth: Add another AR3012 04ca:3018 device KVM: VMX: use correct vmcs_read/write for guest segment selector/base KVM: s390: Disable dirty log retrieval for UCONTROL guests serial: 8250_pci: Add MKS Tenta SCOM-0800 and SCOM-0801 cards tty: n_hdlc: get rid of racy n_hdlc.tbuf TTY: n_hdlc, fix lockdep false positive Linux 4.4.53 scsi: lpfc: Correct WQ creation for pagesize MIPS: IP22: Fix build error due to binutils 2.25 uselessnes. MIPS: IP22: Reformat inline assembler code to modern standards. powerpc/xmon: Fix data-breakpoint dmaengine: ipu: Make sure the interrupt routine checks all interrupts. bcma: use (get|put)_device when probing/removing device driver md linear: fix a race between linear_add() and linear_congested() rtc: sun6i: Switch to the external oscillator rtc: sun6i: Add some locking NFSv4: fix getacl ERANGE for some ACL buffer sizes NFSv4: fix getacl head length estimation NFSv4: Fix memory and state leak in _nfs4_open_and_get_state nfsd: special case truncates some more nfsd: minor nfsd_setattr cleanup rtlwifi: rtl8192c-common: Fix "BUG: KASAN: rtlwifi: Fix alignment issues gfs2: Add missing rcu locking for glock lookup rdma_cm: fail iwarp accepts w/o connection params RDMA/core: Fix incorrect structure packing for booleans Drivers: hv: util: Backup: Fix a rescind processing issue Drivers: hv: util: Fcopy: Fix a rescind processing issue Drivers: hv: util: kvp: Fix a rescind processing issue hv: init percpu_list in hv_synic_alloc() hv: allocate synic pages for all present CPUs usb: gadget: udc: fsl: Add missing complete function. usb: host: xhci: plat: check hcc_params after add hcd usb: musb: da8xx: Remove CPPI 3.0 quirk and methods w1: ds2490: USB transfer buffers need to be DMAable w1: don't leak refcount on slave attach failure in w1_attach_slave_device() can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer iio: pressure: mpl3115: do not rely on structure field ordering iio: pressure: mpl115: do not rely on structure field ordering arm/arm64: KVM: Enforce unconditional flush to PoC when mapping to stage-2 fuse: add missing FR_FORCE crypto: testmgr - Pad aes_ccm_enc_tv_template vector ath9k: use correct OTP register offsets for the AR9340 and AR9550 ath9k: fix race condition in enabling/disabling IRQs ath5k: drop bogus warning on drv_set_key with unsupported cipher target: Fix multi-session dynamic se_node_acl double free OOPs target: Obtain se_node_acl->acl_kref during get_initiator_node_acl samples/seccomp: fix 64-bit comparison macros ext4: return EROFS if device is r/o and journal replay is needed ext4: preserve the needs_recovery flag when the journal is aborted ext4: fix inline data error paths ext4: fix data corruption in data=journal mode ext4: trim allocation requests to group size ext4: do not polute the extents cache while shifting extents ext4: Include forgotten start block on fallocate insert range loop: fix LO_FLAGS_PARTSCAN hang block/loop: fix race between I/O and set_status jbd2: don't leak modified metadata buffers on an aborted journal Fix: Disable sys_membarrier when nohz_full is enabled sd: get disk reference in sd_check_events() scsi: use 'scsi_device_from_queue()' for scsi_dh scsi: aacraid: Reorder Adapter status check scsi: storvsc: properly set residual data length on errors scsi: storvsc: properly handle SRB_ERROR when sense message is present scsi: storvsc: use tagged SRB requests if supported by the device dm stats: fix a leaked s->histogram_boundaries array dm cache: fix corruption seen when using cache > 2TB ipc/shm: Fix shmat mmap nil-page protection mm: do not access page->mapping directly on page_endio mm: vmpressure: fix sending wrong events on underflow mm/page_alloc: fix nodes for reclaim in fast path iommu/vt-d: Tylersburg isoch identity map check is done too late. iommu/vt-d: Fix some macros that are incorrectly specified in intel-iommu regulator: Fix regulator_summary for deviceless consumers staging: rtl: fix possible NULL pointer dereference ALSA: hda - Fix micmute hotkey problem for a lenovo AIO machine ALSA: hda - Add subwoofer support for Dell Inspiron 17 7000 Gaming ALSA: seq: Fix link corruption by event error handling ALSA: ctxfi: Fallback DMA mask to 32bit ALSA: timer: Reject user params with too small ticks ALSA: hda - fix Lewisburg audio issue ALSA: hda/realtek - Cannot adjust speaker's volume on a Dell AIO ARM: dts: at91: Enable DMA on sama5d2_xplained console ARM: dts: at91: Enable DMA on sama5d4_xplained console ARM: at91: define LPDDR types media: fix dm1105.c build error uvcvideo: Fix a wrong macro am437x-vpfe: always assign bpp variable MIPS: Handle microMIPS jumps in the same way as MIPS32/MIPS64 jumps MIPS: Calculate microMIPS ra properly when unwinding the stack MIPS: Fix is_jump_ins() handling of 16b microMIPS instructions MIPS: Fix get_frame_info() handling of microMIPS function size MIPS: Prevent unaligned accesses during stack unwinding MIPS: Clear ISA bit correctly in get_frame_info() MIPS: Lantiq: Keep ethernet enabled during boot MIPS: OCTEON: Fix copy_from_user fault handling for large buffers MIPS: BCM47XX: Fix button inversion for Asus WL-500W MIPS: Fix special case in 64 bit IP checksumming. samples: move mic/mpssd example code from Documentation Linux 4.4.52 kvm: vmx: ensure VMCS is current while enabling PML Revert "usb: chipidea: imx: enable CI_HDRC_SET_NON_ZERO_TTHA" rtlwifi: rtl_usb: Fix for URB leaking when doing ifconfig up/down block: fix double-free in the failure path of cgwb_bdi_init() goldfish: Sanitize the broken interrupt handler x86/platform/goldfish: Prevent unconditional loading USB: serial: ark3116: fix register-accessor error handling USB: serial: opticon: fix CTS retrieval at open USB: serial: spcp8x5: fix modem-status handling USB: serial: ftdi_sio: fix line-status over-reporting USB: serial: ftdi_sio: fix extreme low-latency setting USB: serial: ftdi_sio: fix modem-status error handling USB: serial: cp210x: add new IDs for GE Bx50v3 boards USB: serial: mos7840: fix another NULL-deref at open tty: serial: msm: Fix module autoload net: socket: fix recvmmsg not returning error from sock_error ip: fix IP_CHECKSUM handling irda: Fix lockdep annotations in hashbin_delete(). dccp: fix freeing skb too early for IPV6_RECVPKTINFO packet: Do not call fanout_release from atomic contexts packet: fix races in fanout_add() net/llc: avoid BUG_ON() in skb_orphan() blk-mq: really fix plug list flushing for nomerge queues rtc: interface: ignore expired timers when enqueuing new timers rtlwifi: rtl_usb: Fix missing entry in USB driver's private data Linux 4.4.51 mmc: core: fix multi-bit bus width without high-speed mode bcache: Make gc wakeup sane, remove set_task_state() ntb_transport: Pick an unused queue NTB: ntb_transport: fix debugfs_remove_recursive printk: use rcuidle console tracepoint ARM: 8658/1: uaccess: fix zeroing of 64-bit get_user() futex: Move futex_init() to core_initcall drm/dp/mst: fix kernel oops when turning off secondary monitor drm/radeon: Use mode h/vdisplay fields to hide out of bounds HW cursor Input: elan_i2c - add ELAN0605 to the ACPI table Fix missing sanity check in /dev/sg scsi: don't BUG_ON() empty DMA transfers fuse: fix use after free issue in fuse_dev_do_read() siano: make it work again with CONFIG_VMAP_STACK vfs: fix uninitialized flags in splice_to_pipe() Linux 4.4.50 l2tp: do not use udp_ioctl() ping: fix a null pointer dereference packet: round up linear to header len net: introduce device min_header_len sit: fix a double free on error path sctp: avoid BUG_ON on sctp_wait_for_sndbuf mlx4: Invoke softirqs after napi_reschedule macvtap: read vnet_hdr_size once tun: read vnet_hdr_sz once tcp: avoid infinite loop in tcp_splice_read() ipv6: tcp: add a missing tcp_v6_restore_cb() ip6_gre: fix ip6gre_err() invalid reads netlabel: out of bound access in cipso_v4_validate() ipv4: keep skb->dst around in presence of IP options net: use a work queue to defer net_disable_timestamp() work tcp: fix 0 divide in __tcp_select_window() ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim() ipv6: fix ip6_tnl_parse_tlv_enc_lim() can: Fix kernel panic at security_sock_rcv_skb Conflicts: drivers/scsi/sd.c drivers/usb/gadget/function/f_fs.c drivers/usb/host/xhci-plat.c CRs-Fixed: 2023471 Change-Id: I396051a8de30271af77b3890d4b19787faa1c31e Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-03-18Merge tag 'lsk-v4.4-17.02-android' into branch 'msm-4.4'Runmin Wang
* refs/heads/tmp-26c8156: Linux 4.4.49 drm/i915: fix use-after-free in page_flip_completed() ALSA: seq: Don't handle loop timeout at snd_seq_pool_done() ALSA: seq: Fix race at creating a queue xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend() scsi: mpt3sas: disable ASPM for MPI2 controllers scsi: aacraid: Fix INTx/MSI-x issue with older controllers scsi: zfcp: fix use-after-free by not tracing WKA port open/close on failed send netvsc: Set maximum GSO size in the right place mac80211: Fix adding of mesh vendor IEs ARM: 8642/1: LPAE: catch pending imprecise abort on unmask target: Fix COMPARE_AND_WRITE ref leak for non GOOD status target: Fix early transport_generic_handle_tmr abort scenario target: Use correct SCSI status during EXTENDED_COPY exception target: Don't BUG_ON during NodeACL dynamic -> explicit conversion ARM: 8643/3: arm/ptrace: Preserve previous registers for short regset write hns: avoid stack overflow with CONFIG_KASAN cpumask: use nr_cpumask_bits for parsing functions Revert "x86/ioapic: Restore IO-APIC irq_chip retrigger callback" selinux: fix off-by-one in setprocattr ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixup Linux 4.4.48 base/memory, hotplug: fix a kernel oops in show_valid_zones() x86/irq: Make irq activate operations symmetric USB: serial: option: add device ID for HP lt2523 (Novatel E371) usb: gadget: f_fs: Assorted buffer overflow checks. USB: Add quirk for WORLDE easykey.25 MIDI keyboard USB: serial: pl2303: add ATEN device ID USB: serial: qcserial: add Dell DW5570 QDL KVM: x86: do not save guest-unsupported XSAVE state HID: wacom: Fix poor prox handling in 'wacom_pl_irq' percpu-refcount: fix reference leak during percpu-atomic transition mmc: sdhci: Ignore unexpected CARD_INT interrupts can: bcm: fix hrtimer/tasklet termination in bcm op removal mm, fs: check for fatal signals in do_generic_file_read() mm/memory_hotplug.c: check start_pfn in test_pages_in_a_zone() cifs: initialize file_info_lock zswap: disable changing params if init fails svcrpc: fix oops in absence of krb5 module NFSD: Fix a null reference case in find_or_create_lock_stateid() powerpc: Add missing error check to prom_find_boot_cpu() powerpc/eeh: Fix wrong flag passed to eeh_unfreeze_pe() libata: apply MAX_SEC_1024 to all CX1-JB*-HP devices ata: sata_mv:- Handle return value of devm_ioremap. perf/core: Fix PERF_RECORD_MMAP2 prot/flags for anonymous memory crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg drm/nouveau/nv1a,nv1f/disp: fix memory clock rate retrieval drm/nouveau/disp/gt215: Fix HDA ELD handling (thus, HDMI audio) on gt215 ext4: validate s_first_meta_bg at mount time PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies ANDROID: security: export security_path_chown() Linux 4.4.47 net: dsa: Bring back device detaching in dsa_slave_suspend() qmi_wwan/cdc_ether: add device ID for HP lt2523 (Novatel E371) WWAN card af_unix: move unix_mknod() out of bindlock r8152: don't execute runtime suspend if the tx is not empty bridge: netlink: call br_changelink() during br_dev_newlink() tcp: initialize max window for a new fastopen socket ipv6: addrconf: Avoid addrconf_disable_change() using RCU read-side lock net: phy: bcm63xx: Utilize correct config_intr function net: fix harmonize_features() vs NETIF_F_HIGHDMA ax25: Fix segfault after sock connection timeout ravb: do not use zero-length alignment DMA descriptor openvswitch: maintain correct checksum state in conntrack actions tcp: fix tcp_fastopen unaligned access complaints on sparc net: systemport: Decouple flow control from __bcm_sysport_tx_reclaim net: ipv4: fix table id in getroute response net: lwtunnel: Handle lwtunnel_fill_encap failure mlxsw: pci: Fix EQE structure definition mlxsw: switchx2: Fix memory leak at skb reallocation mlxsw: spectrum: Fix memory leak at skb reallocation r8152: fix the sw rx checksum is unavailable ANDROID: sdcardfs: Switch strcasecmp for internal call ANDROID: sdcardfs: switch to full_name_hash and qstr ANDROID: sdcardfs: Add GID Derivation to sdcardfs ANDROID: sdcardfs: Remove redundant operation ANDROID: sdcardfs: add support for user permission isolation ANDROID: sdcardfs: Refactor configfs interface ANDROID: sdcardfs: Allow non-owners to touch ANDROID: binder: fix format specifier for type binder_size_t ANDROID: fs: Export vfs_rmdir2 ANDROID: fs: Export free_fs_struct and set_fs_pwd ANDROID: mnt: remount should propagate to slaves of slaves ANDROID: sdcardfs: Switch ->d_inode to d_inode() ANDROID: sdcardfs: Fix locking issue with permision fix up ANDROID: sdcardfs: Change magic value ANDROID: sdcardfs: Use per mount permissions ANDROID: sdcardfs: Add gid and mask to private mount data ANDROID: sdcardfs: User new permission2 functions ANDROID: vfs: Add setattr2 for filesystems with per mount permissions ANDROID: vfs: Add permission2 for filesystems with per mount permissions ANDROID: vfs: Allow filesystems to access their private mount data ANDROID: mnt: Add filesystem private data to mount points ANDROID: sdcardfs: Move directory unlock before touch ANDROID: sdcardfs: fix external storage exporting incorrect uid ANDROID: sdcardfs: Added top to sdcardfs_inode_info ANDROID: sdcardfs: Switch package list to RCU ANDROID: sdcardfs: Fix locking for permission fix up ANDROID: sdcardfs: Check for other cases on path lookup ANDROID: sdcardfs: override umask on mkdir and create Linux 4.4.46 mm, memcg: do not retry precharge charges platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT pinctrl: broxton: Use correct PADCFGLOCK offset s5k4ecgx: select CRC32 helper IB/umem: Release pid in error and ODP flow IB/ipoib: move back IB LL address into the hard header drm/i915: Don't leak edid in intel_crt_detect_ddc() SUNRPC: cleanup ida information when removing sunrpc module NFSv4.0: always send mode in SETATTR after EXCLUSIVE4 nfs: Don't increment lock sequence ID after NFS4ERR_MOVED parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header ARC: [arcompact] handle unaligned access delay slot corner case ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list can: ti_hecc: add missing prepare and unprepare of the clock can: c_can_pci: fix null-pointer-deref in c_can_start() - set device pointer s390/ptrace: Preserve previous registers for short regset write RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled ISDN: eicon: silence misleading array-bounds warning sysctl: fix proc_doulongvec_ms_jiffies_minmax() mm/mempolicy.c: do not put mempolicy before using its nodemask drm: Fix broken VT switch with video=1366x768 option tile/ptrace: Preserve previous registers for short regset write fbdev: color map copying bounds checking Linux 4.4.45 arm64: avoid returning from bad_mode selftest/powerpc: Wrong PMC initialized in pmc56_overflow test dmaengine: pl330: Fix runtime PM support for terminated transfers ite-cir: initialize use_demodulator before using it blackfin: check devm_pinctrl_get() for errors ARM: 8613/1: Fix the uaccess crash on PB11MPCore ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation ARM: dts: imx6qdl-nitrogen6_max: fix sgtl5000 pinctrl init arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields arm64/ptrace: Avoid uninitialised struct padding in fpr_set() arm64/ptrace: Preserve previous registers for short regset write - 3 arm64/ptrace: Preserve previous registers for short regset write - 2 arm64/ptrace: Preserve previous registers for short regset write ARM: dts: da850-evm: fix read access to SPI flash ceph: fix bad endianness handling in parse_reply_info_extra ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs svcrdma: avoid duplicate dma unmapping during error recovery clocksource/exynos_mct: Clear interrupt when cpu is shut down ubifs: Fix journal replay wrt. xattr nodes qla2xxx: Fix crash due to null pointer access x86/ioapic: Restore IO-APIC irq_chip retrigger callback mtd: nand: xway: disable module support ieee802154: atusb: do not use the stack for buffers to make them DMA able mmc: mxs-mmc: Fix additional cycles after transmission stop HID: corsair: fix control-transfer error handling HID: corsair: fix DMA buffers on stack PCI: Enumerate switches below PCI-to-PCIe bridges fuse: clear FR_PENDING flag when moving requests out of pending queue svcrpc: don't leak contexts on PROC_DESTROY x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F tmpfs: clear S_ISGID when setting posix ACLs ARM: dts: imx31: fix AVIC base address ARM: dts: imx31: move CCM device node to AIPS2 bus devices ARM: dts: imx31: fix clock control module interrupts description perf scripting: Avoid leaking the scripting_context variable IB/IPoIB: Remove can't use GFP_NOIO warning IB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs IB/mlx4: Fix port query for 56Gb Ethernet links IB/mlx4: Fix out-of-range array index in destroy qp flow IB/mlx4: Set traffic class in AH IB/mlx5: Wait for all async command completions to complete ftrace/x86: Set ftrace_stub to weak to prevent gcc from using short jumps to it Linux 4.4.44 pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE powerpc/ibmebus: Fix device reference leaks in sysfs interface powerpc/ibmebus: Fix further device reference leaks bus: vexpress-config: fix device reference leak blk-mq: Always schedule hctx->next_cpu ACPI / APEI: Fix NMI notification handling block: cfq_cpd_alloc() should use @gfp cpufreq: powernv: Disable preemption while checking CPU throttling state NFSv4.1: nfs4_fl_prepare_ds must be careful about reporting success. NFS: Fix a performance regression in readdir pNFS: Fix race in pnfs_wait_on_layoutreturn pinctrl: meson: fix gpio request disabling other modes btrfs: fix error handling when run_delayed_extent_op fails btrfs: fix locking when we put back a delayed ref that's too new x86/cpu: Fix bootup crashes by sanitizing the argument of the 'clearcpuid=' command-line option USB: serial: ch341: fix modem-control and B0 handling USB: serial: ch341: fix resume after reset drm/radeon: drop verde dpm quirks sysctl: Drop reference added by grab_header in proc_sys_readdir sysrq: attach sysrq handler correctly for 32-bit kernel tty/serial: atmel_serial: BUG: stop DMA from transmitting in stop_tx mnt: Protect the mountpoint hashtable with mount_lock vme: Fix wrong pointer utilization in ca91cx42_slave_get xhci: fix deadlock at host remove by running watchdog correctly i2c: fix kernel memory disclosure in dev interface i2c: print correct device invalid address Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data USB: serial: ch341: fix open and resume after B0 USB: serial: ch341: fix control-message error handling USB: serial: ch341: fix open error handling USB: serial: ch341: fix initial modem-control state USB: serial: kl5kusb105: fix line-state error handling nl80211: fix sched scan netlink socket owner destruction KVM: x86: Introduce segmented_write_std KVM: x86: emulate FXSAVE and FXRSTOR KVM: x86: add asm_safe wrapper KVM: x86: add Align16 instruction flag KVM: x86: flush pending lapic jump label updates on module unload jump_labels: API for flushing deferred jump label updates KVM: eventfd: fix NULL deref irqbypass consumer KVM: x86: fix emulation of "MOV SS, null selector" mm/hugetlb.c: fix reservation race when freeing surplus pages ocfs2: fix crash caused by stale lvb with fsdlm plugin mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done} selftests: do not require bash for the generated test selftests: do not require bash to run netsocktests testcase Input: i8042 - add Pegatron touchpad to noloop table Input: xpad - use correct product id for x360w controllers DEBUG: sched/fair: Fix sched_load_avg_cpu events for task_groups DEBUG: sched/fair: Fix missing sched_load_avg_cpu events net: socket: don't set sk_uid to garbage value in ->setattr() ANDROID: configs: CONFIG_ARM64_SW_TTBR0_PAN=y UPSTREAM: arm64: Disable PAN on uaccess_enable() UPSTREAM: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN UPSTREAM: arm64: xen: Enable user access before a privcmd hvc call UPSTREAM: arm64: Handle faults caused by inadvertent user access with PAN enabled BACKPORT: arm64: Disable TTBR0_EL1 during normal kernel execution BACKPORT: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1 BACKPORT: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro BACKPORT: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros UPSTREAM: arm64: alternative: add auto-nop infrastructure UPSTREAM: arm64: barriers: introduce nops and __nops macros for NOP sequences Revert "FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros" Revert "FROMLIST: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro" Revert "FROMLIST: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1" Revert "FROMLIST: arm64: Disable TTBR0_EL1 during normal kernel execution" Revert "FROMLIST: arm64: Handle faults caused by inadvertent user access with PAN enabled" Revert "FROMLIST: arm64: xen: Enable user access before a privcmd hvc call" Revert "FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN" ANDROID: sched/walt: fix build failure if FAIR_GROUP_SCHED=n Linux 4.4.43 mm/init: fix zone boundary creation ALSA: usb-audio: Add a quirk for Plantronics BT600 spi: mvebu: fix baudrate calculation for armada variant ARM: OMAP4+: Fix bad fallthrough for cpuidle ARM: zynq: Reserve correct amount of non-DMA RAM powerpc: Fix build warning on 32-bit PPC ALSA: firewire-tascam: Fix to handle error from initialization of stream data HID: hid-cypress: validate length of report net: vrf: do not allow table id 0 net: ipv4: Fix multipath selection with vrf gro: Disable frag0 optimization on IPv6 ext headers gro: use min_t() in skb_gro_reset_offset() gro: Enter slow-path if there is no tailroom r8152: fix rx issue for runtime suspend r8152: split rtl8152_suspend function ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules igmp: Make igmp group member RFC 3376 compliant drop_monitor: consider inserted data in genlmsg_end drop_monitor: add missing call to genlmsg_end net/mlx5: Avoid shadowing numa_node net/mlx5: Check FW limitations on log_max_qp before setting it net: stmmac: Fix race between stmmac_drv_probe and stmmac_open net, sched: fix soft lockup in tc_classify ipv6: handle -EFAULT from skb_copy_bits net: vrf: Drop conntrack data after pass through VRF device on Tx ser_gigaset: return -ENOMEM on error instead of success netvsc: reduce maximum GSO size Linux 4.4.42 usb: gadget: composite: always set ep->mult to a sensible value Revert "usb: gadget: composite: always set ep->mult to a sensible value" tick/broadcast: Prevent NULL pointer dereference drm/radeon: Always store CRTC relative radeon_crtc->cursor_x/y values cx23885-dvb: move initialization of a8293_pdata net: vxge: avoid unused function warnings net: ti: cpmac: Fix compiler warning due to type confusion cred/userns: define current_user_ns() as a function staging: comedi: dt282x: tidy up register bit defines powerpc/pci/rpadlpar: Fix device reference leaks md: MD_RECOVERY_NEEDED is set for mddev->recovery crypto: arm64/aes-ce - fix for big endian crypto: arm64/aes-xts-ce: fix for big endian crypto: arm64/sha1-ce - fix for big endian crypto: arm64/aes-neon - fix for big endian crypto: arm64/aes-ccm-ce: fix for big endian crypto: arm/aes-ce - fix for big endian crypto: arm64/ghash-ce - fix for big endian crypto: arm64/sha2-ce - fix for big endian s390/crypto: unlock on error in prng_tdes_read() mmc: mmc_test: Uninitialized return value PM / wakeirq: Fix dedicated wakeirq for drivers not using autosuspend irqchip/bcm7038-l1: Implement irq_cpu_offline() callback target/iscsi: Fix double free in lio_target_tiqn_addtpg() scsi: mvsas: fix command_active typo ASoC: samsung: i2s: Fixup last IRQ unsafe spin lock call iommu/vt-d: Flush old iommu caches for kdump when the device gets context mapped iommu/vt-d: Fix pasid table size encoding iommu/amd: Fix the left value check of cmd buffer iommu/amd: Missing error code in amd_iommu_init_device() clk: imx31: fix rewritten input argument of mx31_clocks_init() clk: clk-wm831x: fix a logic error hwmon: (g762) Fix overflows and crash seen when writing limit attributes hwmon: (nct7802) Fix overflows seen when writing into limit attributes hwmon: (ds620) Fix overflows seen when writing temperature limits hwmon: (amc6821) sign extension temperature hwmon: (scpi) Fix module autoload cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected ath10k: use the right length of "background" stable-fixup: hotplug: fix unused function warning usb: dwc3: ep0: explicitly call dwc3_ep0_prepare_one_trb() usb: dwc3: ep0: add dwc3_ep0_prepare_one_trb() usb: dwc3: gadget: always unmap EP0 requests staging: iio: ad7606: fix improper setting of oversampling pins mei: bus: fix mei_cldev_enable KDoc USB: serial: io_ti: bind to interface after fw download USB: phy: am335x-control: fix device and of_node leaks ARM: dts: r8a7794: Correct hsusb parent clock USB: serial: kl5kusb105: abort on open exception path ALSA: usb-audio: Fix bogus error return in snd_usb_create_stream() usb: musb: blackfin: add bfin_fifo_offset in bfin_ops usb: hub: Move hub_port_disable() to fix warning if PM is disabled usb: musb: Fix trying to free already-free IRQ 4 usb: dwc3: pci: add Intel Gemini Lake PCI ID xhci: Fix race related to abort operation xhci: Use delayed_work instead of timer for command timeout usb: xhci-mem: use passed in GFP flags instead of GFP_KERNEL USB: serial: mos7720: fix parallel probe USB: serial: mos7720: fix parport use-after-free on probe errors USB: serial: mos7720: fix use-after-free on probe errors USB: serial: mos7720: fix NULL-deref at open USB: serial: mos7840: fix NULL-deref at open USB: serial: kobil_sct: fix NULL-deref in write USB: serial: cyberjack: fix NULL-deref at open USB: serial: oti6858: fix NULL-deref at open USB: serial: io_edgeport: fix NULL-deref at open USB: serial: ti_usb_3410_5052: fix NULL-deref at open USB: serial: garmin_gps: fix memory leak on failed URB submit USB: serial: iuu_phoenix: fix NULL-deref at open USB: serial: io_ti: fix I/O after disconnect USB: serial: io_ti: fix another NULL-deref at open USB: serial: io_ti: fix NULL-deref at open USB: serial: spcp8x5: fix NULL-deref at open USB: serial: keyspan_pda: verify endpoints at probe USB: serial: pl2303: fix NULL-deref at open USB: serial: quatech2: fix sleep-while-atomic in close USB: serial: omninet: fix NULL-derefs at open and disconnect usb: xhci: hold lock over xhci_abort_cmd_ring() xhci: Handle command completion and timeout race usb: host: xhci: Fix possible wild pointer when handling abort command usb: xhci: fix return value of xhci_setup_device() xhci: free xhci virtual devices with leaf nodes first usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Apollo Lake xhci: workaround for hosts missing CAS bit usb: xhci: fix possible wild pointer usb: dwc3: core: avoid Overflow events usb: gadget: composite: Test get_alt() presence instead of set_alt() USB: dummy-hcd: fix bug in stop_activity (handle ep0) USB: fix problems with duplicate endpoint addresses USB: gadgetfs: fix checks of wTotalLength in config descriptors USB: gadgetfs: fix use-after-free bug USB: gadgetfs: fix unbounded memory allocation bug usb: gadgetfs: restrict upper bound on device configuration size usb: storage: unusual_uas: Add JMicron JMS56x to unusual device usb: musb: dsps: implement clear_ep_rxintr() callback usb: musb: core: add clear_ep_rxintr() to musb_platform_ops KVM: MIPS: Flush KVM entry code from icache globally KVM: x86: reset MMU on KVM_SET_VCPU_EVENTS mac80211: initialize fast-xmit 'info' later ARM: davinci: da850: don't add emac clock to lookup table twice ALSA: usb-audio: Fix irq/process data synchronization ALSA: hda - Apply asus-mode8 fixup to ASUS X71SL ALSA: hda - Fix up GPIO for ASUS ROG Ranger Linux 4.4.41 net: mvpp2: fix dma unmapping of TX buffers for fragments sg_write()/bsg_write() is not fit to be called under KERNEL_DS kconfig/nconf: Fix hang when editing symbol with a long prompt target/user: Fix use-after-free of tcmu_cmds if they are expired powerpc: Convert cmp to cmpd in idle enter sequence powerpc/ps3: Fix system hang with GCC 5 builds nfs_write_end(): fix handling of short copies libceph: verify authorize reply on connect PCI: Check for PME in targeted sleep state Input: drv260x - fix input device's parent assignment media: solo6x10: fix lockup by avoiding delayed register write IB/cma: Fix a race condition in iboe_addr_get_sgid() IB/multicast: Check ib_find_pkey() return value IPoIB: Avoid reading an uninitialized member variable IB/mad: Fix an array index check fgraph: Handle a case where a tracer ignores set_graph_notrace platform/x86: asus-nb-wmi.c: Add X45U quirk ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps to it kvm: nVMX: Allow L1 to intercept software exceptions (#BP and #OF) KVM: PPC: Book3S HV: Don't lose hardware R/C bit updates in H_PROTECT KVM: PPC: Book3S HV: Save/restore XER in checkpointed register state md/raid5: limit request size according to implementation limits sc16is7xx: Drop bogus use of IRQF_ONESHOT s390/vmlogrdr: fix IUCV buffer allocation firmware: fix usermode helper fallback loading ARC: mm: arc700: Don't assume 2 colours for aliasing VIPT dcache scsi: avoid a permanent stop of the scsi device's request queue scsi: zfcp: fix rport unblock race with LUN recovery scsi: zfcp: do not trace pure benign residual HBA responses at default level scsi: zfcp: fix use-after-"free" in FC ingress path after TMF scsi: megaraid_sas: Do not set MPI2_TYPE_CUDA for JBOD FP path for FW which does not support JBOD sequence map scsi: megaraid_sas: For SRIOV enabled firmware, ensure VF driver waits for 30secs before reset vt: fix Scroll Lock LED trigger name block: protect iterate_bdevs() against concurrent close mei: request async autosuspend at the end of enumeration drivers/gpu/drm/ast: Fix infinite loop if read fails drm/gma500: Add compat ioctl drm/radeon: add additional pci revision to dpm workaround drm/radeon: Hide the HW cursor while it's out of bounds drm/radeon: Also call cursor_move_locked when the cursor size changes drm/nouveau/i2c/gk110b,gm10x: use the correct implementation drm/nouveau/fifo/gf100-: protect channel preempt with subdev mutex drm/nouveau/ltc: protect clearing of comptags with mutex drm/nouveau/bios: require checksum to match for fast acpi shadow method drm/nouveau/kms: lvds panel strap moved again on maxwell ACPI / video: Add force_native quirk for HP Pavilion dv6 ACPI / video: Add force_native quirk for Dell XPS 17 L702X staging: comedi: ni_mio_common: fix E series ni_ai_insn_read() data staging: comedi: ni_mio_common: fix M Series ni_ai_insn_read() data mask thermal: hwmon: Properly report critical temperature in sysfs clk: bcm2835: Avoid overwriting the div info when disabling a pll_div clk timekeeping_Force_unsigned_clocksource_to_nanoseconds_conversion regulator: stw481x-vmmc: fix ages old enable error mmc: sdhci: Fix recovery from tuning timeout ath9k: Really fix LED polarity for some Mini PCI AR9220 MB92 cards. cfg80211/mac80211: fix BSS leaks when abandoning assoc attempts rtlwifi: Fix enter/exit power_save ssb: Fix error routine when fallback SPROM fails Linux 4.4.40 ppp: defer netns reference release for ppp channel driver core: fix race between creating/querying glue dir and its cleanup xfs: set AGI buffer type in xlog_recover_clear_agi_bucket arm/xen: Use alloc_percpu rather than __alloc_percpu xen/gntdev: Use VM_MIXEDMAP instead of VM_IO to avoid NUMA balancing tpm xen: Remove bogus tpm_chip_unregister kernel/debug/debug_core.c: more properly delay for secondary CPUs kernel/watchdog: use nmi registers snapshot in hardlockup handler CIFS: Fix a possible memory corruption in push locks CIFS: Fix missing nls unload in smb2_reconnect() CIFS: Fix a possible memory corruption during reconnect ASoC: intel: Fix crash at suspend/resume without card registration dm space map metadata: fix 'struct sm_metadata' leak on failed create dm crypt: mark key as invalid until properly loaded dm flakey: return -EINVAL on interval bounds error in flakey_ctr() blk-mq: Do not invoke .queue_rq() for a stopped queue usb: gadget: composite: always set ep->mult to a sensible value exec: Ensure mm->user_ns contains the execed files fs: exec: apply CLOEXEC before changing dumpable task flags mm/vmscan.c: set correct defer count for shrinker loop: return proper error from loop_queue_rq() f2fs: set ->owner for debugfs status file's file_operations ext4: do not perform data journaling when data is encrypted ext4: return -ENOMEM instead of success ext4: reject inodes with negative size ext4: add sanity checking to count_overhead() ext4: fix in-superblock mount options processing ext4: use more strict checks for inodes_per_block on mount ext4: fix stack memory corruption with 64k block size ext4: fix mballoc breakage with 64k block size crypto: caam - fix AEAD givenc descriptors ptrace: Capture the ptracer's creds not PT_PTRACE_CAP mm: Add a user_ns owner to mm_struct and fix ptrace permission checks block_dev: don't test bdev->bd_contains when it is not stable btrfs: make file clone aware of fatal signals Btrfs: don't BUG() during drop snapshot Btrfs: fix memory leak in do_walk_down Btrfs: don't leak reloc root nodes on error Btrfs: return gracefully from balance if fs tree is corrupted Btrfs: bail out if block group has different mixed flag Btrfs: fix memory leak in reading btree blocks clk: ti: omap36xx: Work around sprz319 advisory 2.1 ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq ALSA: hda - Gate the mic jack on HP Z1 Gen3 AiO ALSA: hda - fix headset-mic problem on a Dell laptop ALSA: hda - ignore the assoc and seq when comparing pin configurations ALSA: hda/ca0132 - Add quirk for Alienware 15 R2 2016 ALSA: hiface: Fix M2Tech hiFace driver sampling rate change ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks USB: UHCI: report non-PME wakeup signalling for Intel hardware usb: gadget: composite: correctly initialize ep->maxpacket usb: gadget: f_uac2: fix error handling at afunc_bind usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices USB: cdc-acm: add device id for GW Instek AFG-125 USB: serial: kl5kusb105: fix open error path USB: serial: option: add dlink dwm-158 USB: serial: option: add support for Telit LE922A PIDs 0x1040, 0x1041 Btrfs: fix qgroup rescan worker initialization btrfs: store and load values of stripes_min/stripes_max in balance status item Btrfs: fix tree search logic when replaying directory entry deletes btrfs: limit async_work allocation and worker func duration ANDROID: trace: net: use %pK for kernel pointers ANDROID: android-base: Enable QUOTA related configs net: ipv4: Don't crash if passing a null sk to ip_rt_update_pmtu. net: inet: Support UID-based routing in IP protocols. Revert "net: ipv6: fix virtual tunneling build" net: core: add UID to flows, rules, and routes net: core: Add a UID field to struct sock. Revert "net: core: Support UID-based routing." Revert "net: core: Handle 'sk' being NULL in UID-based routing" Revert "ANDROID: net: fix 'const' warnings" Revert "ANDROID: net: fib: remove duplicate assignment" Revert "ANDROID: net: core: fix UID-based routing" UPSTREAM: efi/arm64: Don't apply MEMBLOCK_NOMAP to UEFI memory map mapping UPSTREAM: arm64: enable CONFIG_DEBUG_RODATA by default goldfish: enable CONFIG_INET_DIAG_DESTROY sched/walt: kill {min,max}_capacity sched: fix wrong truncation of walt_avg ANDROID: dm verity: add minimum prefetch size Linux 4.4.39 crypto: rsa - Add Makefile dependencies to fix parallel builds hotplug: Make register and unregister notifier API symmetric batman-adv: Check for alloc errors when preparing TT local data m68k: Fix ndelay() macro arm64: futex.h: Add missing PAN toggling can: peak: fix bad memory access and free sequence can: raw: raw_setsockopt: limit number of can_filter that can be set crypto: mcryptd - Check mcryptd algorithm compatibility perf/x86: Fix full width counter, counter overflow locking/rtmutex: Use READ_ONCE() in rt_mutex_owner() locking/rtmutex: Prevent dequeue vs. unlock race zram: restrict add/remove attributes to root only parisc: Fix TLB related boot crash on SMP machines parisc: Remove unnecessary TLB purges from flush_dcache_page_asm and flush_icache_page_asm parisc: Purge TLB before setting PTE powerpc/eeh: Fix deadlock when PE frozen state can't be cleared Conflicts: arch/arm64/kernel/traps.c drivers/usb/dwc3/core.h drivers/usb/dwc3/ep0.c drivers/usb/gadget/function/f_fs.c drivers/usb/host/xhci-mem.c drivers/usb/host/xhci-ring.c drivers/usb/host/xhci.c drivers/video/fbdev/core/fbcmap.c include/trace/events/sched.h mm/vmscan.c Change-Id: I3faa0010ecb98972cd8e6470377a493b56d95f89 Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org> Signed-off-by: Runmin Wang <runminw@codeaurora.org>
2017-03-12ipc/shm: Fix shmat mmap nil-page protectionDavidlohr Bueso
commit 95e91b831f87ac8e1f8ed50c14d709089b4e01b8 upstream. The issue is described here, with a nice testcase: https://bugzilla.kernel.org/show_bug.cgi?id=192931 The problem is that shmat() calls do_mmap_pgoff() with MAP_FIXED, and the address rounded down to 0. For the regular mmap case, the protection mentioned above is that the kernel gets to generate the address -- arch_get_unmapped_area() will always check for MAP_FIXED and return that address. So by the time we do security_mmap_addr(0) things get funky for shmat(). The testcase itself shows that while a regular user crashes, root will not have a problem attaching a nil-page. There are two possible fixes to this. The first, and which this patch does, is to simply allow root to crash as well -- this is also regular mmap behavior, ie when hacking up the testcase and adding mmap(... |MAP_FIXED). While this approach is the safer option, the second alternative is to ignore SHM_RND if the rounded address is 0, thus only having MAP_SHARED flags. This makes the behavior of shmat() identical to the mmap() case. The downside of this is obviously user visible, but does make sense in that it maintains semantics after the round-down wrt 0 address and mmap. Passes shm related ltp tests. Link: http://lkml.kernel.org/r/1486050195-18629-1-git-send-email-dave@stgolabs.net Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Reported-by: Gareth Evans <gareth.evans@contextis.co.uk> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-28Merge tag 'lsk-v4.4-16.12-android' into branch 'msm-4.4'Runmin Wang
* remotes/origin/tmp-2f0de51: Linux 4.4.38 esp6: Fix integrity verification when ESN are used esp4: Fix integrity verification when ESN are used ipv4: Set skb->protocol properly for local output ipv6: Set skb->protocol properly for local output Don't feed anything but regular iovec's to blk_rq_map_user_iov constify iov_iter_count() and iter_is_iovec() sparc64: fix compile warning section mismatch in find_node() sparc64: Fix find_node warning if numa node cannot be found sparc32: Fix inverted invalid_frame_pointer checks on sigreturns net: ping: check minimum size on ICMP header length net: avoid signed overflows for SO_{SND|RCV}BUFFORCE geneve: avoid use-after-free of skb->data sh_eth: remove unchecked interrupts for RZ/A1 net: bcmgenet: Utilize correct struct device for all DMA operations packet: fix race condition in packet_set_ring net/dccp: fix use-after-free in dccp_invalid_packet netlink: Do not schedule work from sk_destruct netlink: Call cb->done from a worker thread net/sched: pedit: make sure that offset is valid net, sched: respect rcu grace period on cls destruction net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind() rtnetlink: fix FDB size computation af_unix: conditionally use freezable blocking calls in read net: sky2: Fix shutdown crash ip6_tunnel: disable caching when the traffic class is inherited net: check dead netns for peernet2id_alloc() virtio-net: add a missing synchronize_net() Linux 4.4.37 arm64: suspend: Reconfigure PSTATE after resume from idle arm64: mm: Set PSTATE.PAN from the cpu_enable_pan() call arm64: cpufeature: Schedule enable() calls instead of calling them via IPI pwm: Fix device reference leak mwifiex: printk() overflow with 32-byte SSIDs PCI: Set Read Completion Boundary to 128 iff Root Port supports it (_HPX) PCI: Export pcie_find_root_port rcu: Fix soft lockup for rcu_nocb_kthread ALSA: pcm : Call kill_fasync() in stream lock x86/traps: Ignore high word of regs->cs in early_fixup_exception() kasan: update kasan_global for gcc 7 zram: fix unbalanced idr management at hot removal ARC: Don't use "+l" inline asm constraint Linux 4.4.36 scsi: mpt3sas: Unblock device after controller reset flow_dissect: call init_default_flow_dissectors() earlier mei: fix return value on disconnection mei: me: fix place for kaby point device ids. mei: me: disable driver on SPT SPS firmware drm/radeon: Ensure vblank interrupt is enabled on DPMS transition to on mpi: Fix NULL ptr dereference in mpi_powm() [ver #3] parisc: Also flush data TLB in flush_icache_page_asm parisc: Fix race in pci-dma.c parisc: Fix races in parisc_setup_cache_timing() NFSv4.x: hide array-bounds warning apparmor: fix change_hat not finding hat after policy replacement cfg80211: limit scan results cache size tile: avoid using clocksource_cyc2ns with absolute cycle count scsi: mpt3sas: Fix secure erase premature termination Fix USB CB/CBI storage devices with CONFIG_VMAP_STACK=y USB: serial: ftdi_sio: add support for TI CC3200 LaunchPad USB: serial: cp210x: add ID for the Zone DPMX usb: chipidea: move the lock initialization to core file KVM: x86: check for pic and ioapic presence before use KVM: x86: drop error recovery in em_jmp_far and em_ret_far iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions iommu/vt-d: Fix PASID table allocation sched: tune: Fix lacking spinlock initialization UPSTREAM: trace: Update documentation for mono, mono_raw and boot clock UPSTREAM: trace: Add an option for boot clock as trace clock UPSTREAM: timekeeping: Add a fast and NMI safe boot clock ANDROID: goldfish_pipe: fix allmodconfig build ANDROID: goldfish: goldfish_pipe: fix locking errors ANDROID: video: goldfishfb: fix platform_no_drv_owner.cocci warnings ANDROID: goldfish_pipe: fix call_kern.cocci warnings arm64: rename ranchu defconfig to ranchu64 ANDROID: arch: x86: disable pic for Android toolchain ANDROID: goldfish_pipe: An implementation of more parallel pipe ANDROID: goldfish_pipe: bugfixes and performance improvements. ANDROID: goldfish: Add goldfish sync driver ANDROID: goldfish: add ranchu defconfigs ANDROID: goldfish_audio: Clear audio read buffer status after each read ANDROID: goldfish_events: no extra EV_SYN; register goldfish ANDROID: goldfish_fb: Set pixclock = 0 ANDROID: goldfish: Enable ACPI-based enumeration for goldfish audio ANDROID: goldfish: Enable ACPI-based enumeration for goldfish framebuffer ANDROID: video: goldfishfb: add devicetree bindings BACKPORT: staging: goldfish: audio: fix compiliation on arm BACKPORT: Input: goldfish_events - enable ACPI-based enumeration for goldfish events BACKPORT: goldfish: Enable ACPI-based enumeration for goldfish battery BACKPORT: drivers: tty: goldfish: Add device tree bindings BACKPORT: tty: goldfish: support platform_device with id -1 BACKPORT: Input: goldfish_events - add devicetree bindings BACKPORT: power: goldfish_battery: add devicetree bindings BACKPORT: staging: goldfish: audio: add devicetree bindings ANDROID: usb: gadget: function: cleanup: Add blank line after declaration cpufreq: sched: Fix kernel crash on accessing sysfs file usb: gadget: f_mtp: simplify ptp NULL pointer check cgroup: replace unified-hierarchy.txt with a proper cgroup v2 documentation cgroup: rename Documentation/cgroups/ to Documentation/cgroup-legacy/ cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type writeback: initialize inode members that track writeback history mm: page_alloc: generalize the dirty balance reserve block: fix module reference leak on put_disk() call for cgroups throttle Linux 4.4.35 netfilter: nft_dynset: fix element timeout for HZ != 1000 IB/cm: Mark stale CM id's whenever the mad agent was unregistered IB/uverbs: Fix leak of XRC target QPs IB/core: Avoid unsigned int overflow in sg_alloc_table IB/mlx5: Fix fatal error dispatching IB/mlx5: Use cache line size to select CQE stride IB/mlx4: Fix create CQ error flow IB/mlx4: Check gid_index return value PM / sleep: don't suspend parent when async child suspend_{noirq, late} fails PM / sleep: fix device reference leak in test_suspend uwb: fix device reference leaks mfd: core: Fix device reference leak in mfd_clone_cell iwlwifi: pcie: fix SPLC structure parsing rtc: omap: Fix selecting external osc clk: mmp: mmp2: fix return value check in mmp2_clk_init() clk: mmp: pxa168: fix return value check in pxa168_clk_init() clk: mmp: pxa910: fix return value check in pxa910_clk_init() drm/amdgpu: Attach exclusive fence to prime exported bo's. (v5) crypto: caam - do not register AES-XTS mode on LP units ext4: sanity check the block and cluster size at mount time kbuild: Steal gcc's pie from the very beginning x86/kexec: add -fno-PIE scripts/has-stack-protector: add -fno-PIE kbuild: add -fno-PIE i2c: mux: fix up dependencies can: bcm: fix warning in bcm_connect/proc_register mfd: intel-lpss: Do not put device in reset state on suspend fuse: fix fuse_write_end() if zero bytes were copied KVM: Disable irq while unregistering user notifier KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr x86/cpu/AMD: Fix cpu_llc_id for AMD Fam17h systems Linux 4.4.34 sparc64: Delete now unused user copy fixup functions. sparc64: Delete now unused user copy assembler helpers. sparc64: Convert U3copy_{from,to}_user to accurate exception reporting. sparc64: Convert NG2copy_{from,to}_user to accurate exception reporting. sparc64: Convert NGcopy_{from,to}_user to accurate exception reporting. sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting. sparc64: Convert U1copy_{from,to}_user to accurate exception reporting. sparc64: Convert GENcopy_{from,to}_user to accurate exception reporting. sparc64: Convert copy_in_user to accurate exception reporting. sparc64: Prepare to move to more saner user copy exception handling. sparc64: Delete __ret_efault. sparc64: Handle extremely large kernel TLB range flushes more gracefully. sparc64: Fix illegal relative branches in hypervisor patched TLB cross-call code. sparc64: Fix instruction count in comment for __hypervisor_flush_tlb_pending. sparc64: Fix illegal relative branches in hypervisor patched TLB code. sparc64: Handle extremely large kernel TSB range flushes sanely. sparc: Handle negative offsets in arch_jump_label_transform sparc64 mm: Fix base TSB sizing when hugetlb pages are used sparc: serial: sunhv: fix a double lock bug sparc: Don't leak context bits into thread->fault_address tty: Prevent ldisc drivers from re-using stale tty fields tcp: take care of truncations done by sk_filter() ipv4: use new_gw for redirect neigh lookup net: __skb_flow_dissect() must cap its return value sock: fix sendmmsg for partial sendmsg fib_trie: Correct /proc/net/route off by one error sctp: assign assoc_id earlier in __sctp_connect ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped ipv6: dccp: fix out of bound access in dccp_v6_err() dccp: fix out of bound access in dccp_v4_err() dccp: do not send reset to already closed sockets tcp: fix potential memory corruption ip6_tunnel: Clear IP6CB in ip6tunnel_xmit() bgmac: stop clearing DMA receive control register right after it is set net: mangle zero checksum in skb_checksum_help() net: clear sk_err_soft in sk_clone_lock() dctcp: avoid bogus doubling of cwnd after loss ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook Linux 4.4.33 netfilter: fix namespace handling in nf_log_proc_dostring btrfs: qgroup: Prevent qgroup->reserved from going subzero mmc: mxs: Initialize the spinlock prior to using it ASoC: sun4i-codec: return error code instead of NULL when create_card fails ACPI / APEI: Fix incorrect return value of ghes_proc() i40e: fix call of ndo_dflt_bridge_getlink() hwrng: core - Don't use a stack buffer in add_early_randomness() lib/genalloc.c: start search from start of chunk mei: bus: fix received data size check in NFC fixup iommu/vt-d: Fix dead-locks in disable_dmar_iommu() path iommu/amd: Free domain id when free a domain of struct dma_ops_domain tty/serial: at91: fix hardware handshake on Atmel platforms dmaengine: at_xdmac: fix spurious flag status for mem2mem transfers drm/i915: Respect alternate_ddc_pin for all DDI ports KVM: MIPS: Precalculate MMIO load resume PC scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk scsi: qla2xxx: Fix scsi scan hang triggered if adapter fails during init iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver) iio: hid-sensors: Increase the precision of scale to fix wrong reading interpretation. clk: qoriq: Don't allow CPU clocks higher than starting value toshiba-wmi: Fix loading the driver on non Toshiba laptops drbd: Fix kernel_sendmsg() usage - potential NULL deref usb: gadget: u_ether: remove interrupt throttling USB: cdc-acm: fix TIOCMIWAIT staging: nvec: remove managed resource from PS2 driver Revert "staging: nvec: ps2: change serio type to passthrough" drivers: staging: nvec: remove bogus reset command for PS/2 interface staging: iio: ad5933: avoid uninitialized variable in error case pinctrl: cherryview: Prevent possible interrupt storm on resume pinctrl: cherryview: Serialize register access in suspend/resume ARC: timer: rtc: implement read loop in "C" vs. inline asm s390/hypfs: Use get_free_page() instead of kmalloc to ensure page alignment coredump: fix unfreezable coredumping task swapfile: fix memory corruption via malformed swapfile dib0700: fix nec repeat handling ASoC: cs4270: fix DAPM stream name mismatch ALSA: info: Limit the proc text input size ALSA: info: Return error for invalid read/write arm64: Enable KPROBES/HIBERNATION/CORESIGHT in defconfig arm64: kvm: allows kvm cpu hotplug arm64: KVM: Register CPU notifiers when the kernel runs at HYP arm64: KVM: Skip HYP setup when already running in HYP arm64: hyp/kvm: Make hyp-stub reject kvm_call_hyp() arm64: hyp/kvm: Make hyp-stub extensible arm64: kvm: Move lr save/restore from do_el2_call into EL1 arm64: kvm: deal with kernel symbols outside of linear mapping arm64: introduce KIMAGE_VADDR as the virtual base of the kernel region ANDROID: video: adf: Avoid directly referencing user pointers ANDROID: usb: gadget: audio_source: fix comparison of distinct pointer types android: binder: support for file-descriptor arrays. android: binder: support for scatter-gather. android: binder: add extra size to allocator. android: binder: refactor binder_transact() android: binder: support multiple /dev instances. android: binder: deal with contexts in debugfs. android: binder: support multiple context managers. android: binder: split flat_binder_object. disable aio support in recommended configuration Linux 4.4.32 scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression drm/radeon: fix DP mode validation drm/radeon/dp: add back special handling for NUTMEG drm/amdgpu: fix DP mode validation drm/amdgpu/dp: add back special handling for NUTMEG KVM: MIPS: Drop other CPU ASIDs on guest MMU changes Revert KVM: MIPS: Drop other CPU ASIDs on guest MMU changes of: silence warnings due to max() usage packet: on direct_xmit, limit tso and csum to supported devices sctp: validate chunk len before actually using it net sched filters: fix notification of filter delete with proper handle udp: fix IP_CHECKSUM handling net: sctp, forbid negative length ipv4: use the right lock for ping_group_range ipv4: disable BH in set_ping_group_range() net: add recursion limit to GRO rtnetlink: Add rtnexthop offload flag to compare mask bridge: multicast: restore perm router ports on multicast enable net: pktgen: remove rcu locking in pktgen_change_name() ipv6: correctly add local routes when lo goes up ip6_tunnel: fix ip6_tnl_lookup ipv6: tcp: restore IP6CB for pktoptions skbs netlink: do not enter direct reclaim from netlink_dump() packet: call fanout_release, while UNREGISTERING a netdev net: Add netdev all_adj_list refcnt propagation to fix panic net/sched: act_vlan: Push skb->data to mac_header prior calling skb_vlan_*() functions net: pktgen: fix pkt_size net: fec: set mac address unconditionally tg3: Avoid NULL pointer dereference in tg3_io_error_detected() ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route ip6_gre: fix flowi6_proto value in ip6gre_xmit_other() tcp: fix a compile error in DBGUNDO() tcp: fix wrong checksum calculation on MTU probing net: avoid sk_forward_alloc overflows tcp: fix overflow in __tcp_retransmit_skb() arm64/kvm: fix build issue on kvm debug arm64: ptdump: Indicate whether memory should be faulting arm64: Add support for ARCH_SUPPORTS_DEBUG_PAGEALLOC arm64: Drop alloc function from create_mapping arm64: allow vmalloc regions to be set with set_memory_* arm64: kernel: implement ACPI parking protocol arm64: mm: create new fine-grained mappings at boot arm64: ensure _stext and _etext are page-aligned arm64: mm: allow passing a pgdir to alloc_init_* arm64: mm: allocate pagetables anywhere arm64: mm: use fixmap when creating page tables arm64: mm: add functions to walk tables in fixmap arm64: mm: add __{pud,pgd}_populate arm64: mm: avoid redundant __pa(__va(x)) Linux 4.4.31 HID: usbhid: add ATEN CS962 to list of quirky devices ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap() kvm: x86: Check memopp before dereference (CVE-2016-8630) tty: vt, fix bogus division in csi_J usb: dwc3: Fix size used in dma_free_coherent() pwm: Unexport children before chip removal UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header Disable "frame-address" warning smc91x: avoid self-comparison warning cgroup: avoid false positive gcc-6 warning drm/exynos: fix error handling in exynos_drm_subdrv_open mm/cma: silence warnings due to max() usage ARM: 8584/1: floppy: avoid gcc-6 warning powerpc/ptrace: Fix out of bounds array access warning x86/xen: fix upper bound of pmd loop in xen_cleanhighmap() perf build: Fix traceevent plugins build race drm/dp/mst: Check peer device type before attempting EDID read drm/radeon: drop register readback in cayman_cp_int_cntl_setup drm/radeon/si_dpm: workaround for SI kickers drm/radeon/si_dpm: Limit clocks on HD86xx part Revert "drm/radeon: fix DP link training issue with second 4K monitor" mmc: dw_mmc-pltfm: fix the potential NULL pointer dereference scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware scsi: scsi_debug: Fix memory leak if LBP enabled and module is unloaded scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices mac80211: discard multicast and 4-addr A-MSDUs firewire: net: fix fragmented datagram_size off-by-one firewire: net: guard against rx buffer overflows Input: i8042 - add XMG C504 to keyboard reset table dm mirror: fix read error on recovery after default leg failure virtio: console: Unlock vqs while freeing buffers virtio_ring: Make interrupt suppression spec compliant parisc: Ensure consistent state when switching to kernel stack at syscall entry ovl: fsync after copy-up KVM: MIPS: Make ERET handle ERL before EXL KVM: x86: fix wbinvd_dirty_mask use-after-free dm: free io_barrier after blk_cleanup_queue call USB: serial: cp210x: fix tiocmget error handling tty: limit terminal size to 4M chars xhci: add restart quirk for Intel Wildcatpoint PCH hv: do not lose pending heartbeat vmbus packets vt: clear selection before resizing Fix potential infoleak in older kernels GenWQE: Fix bad page access during abort of resource allocation usb: increase ohci watchdog delay to 275 msec xhci: use default USB_RESUME_TIMEOUT when resuming ports. USB: serial: ftdi_sio: add support for Infineon TriBoard TC2X7 USB: serial: fix potential NULL-dereference at probe usb: gadget: function: u_ether: don't starve tx request queue mei: txe: don't clean an unprocessed interrupt cause. ubifs: Fix regression in ubifs_readdir() ubifs: Abort readdir upon error btrfs: fix races on root_log_ctx lists ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct ANDROID: binder: Add strong ref checks ALSA: hda - Fix headset mic detection problem for two Dell laptops ALSA: hda - Adding a new group of pin cfg into ALC295 pin quirk table ALSA: hda - allow 40 bit DMA mask for NVidia devices ALSA: hda - Raise AZX_DCAPS_RIRB_DELAY handling into top drivers ALSA: hda - Merge RIRB_PRE_DELAY into CTX_WORKAROUND caps ALSA: usb-audio: Add quirk for Syntek STK1160 KEYS: Fix short sprintf buffer in /proc/keys show function mm: memcontrol: do not recurse in direct reclaim mm/list_lru.c: avoid error-path NULL pointer deref libxfs: clean up _calc_dquots_per_chunk h8300: fix syscall restarting drm/dp/mst: Clear port->pdt when tearing down the i2c adapter i2c: core: fix NULL pointer dereference under race condition i2c: xgene: Avoid dma_buffer overrun arm64:cpufeature ARM64_NCAPS is the indicator of last feature arm64: hibernate: Refuse to hibernate if the boot cpu is offline PM / sleep: Add support for read-only sysfs attributes arm64: kernel: Add support for hibernate/suspend-to-disk arm64: mm: add functions to walk page tables by PA arm64: mm: move pte_* macros PM / Hibernate: Call flush_icache_range() on pages restored in-place arm64: Add new asm macro copy_page arm64: Promote KERNEL_START/KERNEL_END definitions to a header file arm64: kernel: Include _AC definition in page.h arm64: Change cpu_resume() to enable mmu early then access sleep_sp by va arm64: kernel: Rework finisher callback out of __cpu_suspend_enter() arm64: Cleanup SCTLR flags arm64: Fold proc-macros.S into assembler.h arm/arm64: KVM: Add hook for C-based stage2 init arm/arm64: KVM: Detect vGIC presence at runtime arm64: KVM: Add support for 16-bit VMID arm: KVM: Make kvm_arm.h friendly to assembly code arm/arm64: KVM: Remove unreferenced S2_PGD_ORDER arm64: KVM: debug: Remove spurious inline attributes ARM: KVM: Cleanup exception injection arm64: KVM: Remove weak attributes arm64: KVM: Cleanup asm-offset.c arm64: KVM: Turn system register numbers to an enum arm64: KVM: VHE: Patch out use of HVC arm64: Add ARM64_HAS_VIRT_HOST_EXTN feature arm/arm64: Add new is_kernel_in_hyp_mode predicate arm64: KVM: Move away from the assembly version of the world switch arm64: KVM: Map the kernel RO section into HYP arm64: KVM: Add compatibility aliases arm64: KVM: Implement vgic-v3 save/restore arm64: KVM: Add panic handling arm64: KVM: HYP mode entry points arm64: KVM: Implement TLB handling arm64: KVM: Implement fpsimd save/restore arm64: KVM: Implement the core world switch arm64: KVM: Add patchable function selector arm64: KVM: Implement guest entry arm64: KVM: Implement debug save/restore arm64: KVM: Implement 32bit system register save/restore arm64: KVM: Implement system register save/restore arm64: KVM: Implement timer save/restore arm64: KVM: Implement vgic-v2 save/restore arm64: KVM: Add a HYP-specific header file KVM: arm/arm64: vgic-v3: Make the LR indexing macro public arm64: Add macros to read/write system registers Linux 4.4.30 Revert "fix minor infoleak in get_user_ex()" Revert "x86/mm: Expand the exception table logic to allow new handling options" Linux 4.4.29 ARM: pxa: pxa_cplds: fix interrupt handling powerpc/nvram: Fix an incorrect partition merge mpt3sas: Don't spam logs if logging level is 0 perf symbols: Fixup symbol sizes before picking best ones perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too perf hists browser: Fix event group display clk: divider: Fix clk_divider_round_rate() to use clk_readl() clk: qoriq: fix a register offset error s390/con3270: fix insufficient space padding s390/con3270: fix use of uninitialised data s390/cio: fix accidental interrupt enabling during resume x86/mm: Expand the exception table logic to allow new handling options dmaengine: ipu: remove bogus NO_IRQ reference power: bq24257: Fix use of uninitialized pointer bq->charger staging: r8188eu: Fix scheduling while atomic splat ASoC: dapm: Fix kcontrol creation for output driver widget ASoC: dapm: Fix value setting for _ENUM_DOUBLE MUX's second channel ASoC: dapm: Fix possible uninitialized variable in snd_soc_dapm_get_volsw() ASoC: topology: Fix error return code in soc_tplg_dapm_widget_create() hwrng: omap - Only fail if pm_runtime_get_sync returns < 0 crypto: arm/ghash-ce - add missing async import/export crypto: gcm - Fix IV buffer size in crypto_gcm_setkey mwifiex: correct aid value during tdls setup spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function ARM: clk-imx35: fix name for ckil clk uio: fix dmem_region_start computation genirq/generic_chip: Add irq_unmap callback perf stat: Fix interval output values powerpc/eeh: Null check uses of eeh_pe_bus_get tunnels: Remove encapsulation offloads on decap. tunnels: Don't apply GRO to multiple layers of encapsulation. ipip: Properly mark ipip GRO packets as encapsulated. posix_acl: Clear SGID bit when setting file permissions brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap() mm/hugetlb: fix memory offline with hugepage size > memory block size drm/i915: Unalias obj->phys_handle and obj->userptr drm/i915: Account for TSEG size when determining 865G stolen base Revert "drm/i915: Check live status before reading edid" drm/i915/gen9: fix the WaWmMemoryReadLatency implementation xenbus: don't look up transaction IDs for ordinary writes drm/vmwgfx: Limit the user-space command buffer size drm/radeon: change vblank_time's calculation method to reduce computational error. drm/radeon/si/dpm: fix phase shedding setup drm/radeon: narrow asic_init for virtualization drm/amdgpu: change vblank_time's calculation method to reduce computational error. drm/amdgpu/dce11: add missing drm_mode_config_cleanup call drm/amdgpu/dce11: disable hpd on local panels drm/amdgpu/dce8: disable hpd on local panels drm/amdgpu/dce10: disable hpd on local panels drm/amdgpu: fix IB alignment for UVD drm/prime: Pass the right module owner through to dma_buf_export() Linux 4.4.28 target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE target: Re-add missing SCF_ACK_KREF assignment in v4.1.y ubifs: Fix xattr_names length in exit paths jbd2: fix incorrect unlock on j_list_lock ext4: do not advertise encryption support when disabled mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led mmc: rtsx_usb_sdmmc: Avoid keeping the device runtime resumed when unused mmc: core: Annotate cmd_hdr as __le32 powerpc/mm: Prevent unlikely crash in copro_calculate_slb() ceph: fix error handling in ceph_read_iter arm64: kernel: Init MDCR_EL2 even in the absence of a PMU arm64: percpu: rewrite ll/sc loops in assembly memstick: rtsx_usb_ms: Manage runtime PM when accessing the device memstick: rtsx_usb_ms: Runtime resume the device when polling for cards isofs: Do not return EACCES for unknown filesystems irqchip/gic-v3-its: Fix entry size mask for GITS_BASER s390/mm: fix gmap tlb flush issues Using BUG_ON() as an assert() is _never_ acceptable mm: filemap: fix mapping->nrpages double accounting in fuse mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page() acpi, nfit: check for the correct event code in notifications net/mlx4_core: Allow resetting VF admin mac to zero bnx2x: Prevent false warning for lack of FC NPIV PKCS#7: Don't require SpcSpOpusInfo in Authenticode pkcs7 signatures hpsa: correct skipping masked peripherals sd: Fix rw_max for devices that report an optimal xfer size irqchip/gicv3: Handle loop timeout proper kvm: x86: memset whole irq_eoi x86/e820: Don't merge consecutive E820_PRAM ranges blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL Fix regression which breaks DFS mounting Cleanup missing frees on some ioctls Do not send SMB3 SET_INFO request if nothing is changing SMB3: GUIDs should be constructed as random but valid uuids Set previous session id correctly on SMB3 reconnect Display number of credits available Clarify locking of cifs file and tcon structures and make more granular fs/cifs: keep guid when assigning fid to fileinfo cifs: Limit the overall credit acquired fs/super.c: fix race between freeze_super() and thaw_super() arc: don't leak bits of kernel stack into coredump lightnvm: ensure that nvm_dev_ops can be used without CONFIG_NVM ipc/sem.c: fix complex_count vs. simple op race mm: filemap: don't plant shadow entries without radix tree node metag: Only define atomic_dec_if_positive conditionally scsi: Fix use-after-free NFSv4.2: Fix a reference leak in nfs42_proc_layoutstats_generic NFSv4: Open state recovery must account for file permission changes NFSv4: nfs4_copy_delegation_stateid() must fail if the delegation is invalid NFSv4: Don't report revoked delegations as valid in nfs_have_delegation() sunrpc: fix write space race causing stalls Input: elantech - add Fujitsu Lifebook E556 to force crc_enabled Input: elantech - force needed quirks on Fujitsu H760 Input: i8042 - skip selftest on ASUS laptops lib: add "on"/"off" support to kstrtobool lib: update single-char callers of strtobool() lib: move strtobool() to kstrtobool() MIPS: ptrace: Fix regs_return_value for kernel context MIPS: Fix -mabi=64 build of vdso.lds ALSA: hda - Fix a failure of micmute led when having multi adcs cx231xx: fix GPIOs for Pixelview SBTVD hybrid cx231xx: don't return error on success mb86a20s: fix demod settings mb86a20s: fix the locking logic ovl: copy_up_xattr(): use strnlen ovl: Fix info leak in ovl_lookup_temp() fbdev/efifb: Fix 16 color palette entry calculation scsi: zfcp: spin_lock_irqsave() is not nestable zfcp: trace full payload of all SAN records (req,resp,iels) zfcp: fix payload trace length for SAN request&response zfcp: fix D_ID field with actual value on tracing SAN responses zfcp: restore tracing of handle for port and LUN with HBA records zfcp: trace on request for open and close of WKA port zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace zfcp: retain trace level for SCSI and HBA FSF response records zfcp: close window with unblocked rport during rport gone zfcp: fix ELS/GS request&response length for hardware data router zfcp: fix fc_host port_type with NPIV ubi: Deal with interrupted erasures in WL powerpc/pseries: Fix stack corruption in htpe code powerpc/64: Fix incorrect return value from __copy_tofrom_user powerpc/powernv: Use CPU-endian PEST in pnv_pci_dump_p7ioc_diag_data() powerpc/powernv: Use CPU-endian hub diag-data type in pnv_eeh_get_and_dump_hub_diag() powerpc/powernv: Pass CPU-endian PE number to opal_pci_eeh_freeze_clear() powerpc/vdso64: Use double word compare on pointers dm crypt: fix crash on exit dm mpath: check if path's request_queue is dying in activate_path() dm: return correct error code in dm_resume()'s retry loop dm: mark request_queue dead before destroying the DM device perf intel-pt: Fix MTC timestamp calculation for large MTC periods perf intel-pt: Fix estimated timestamps for cycle-accurate mode perf intel-pt: Fix snapshot overlap detection decoder errors pstore/ram: Use memcpy_fromio() to save old buffer pstore/ram: Use memcpy_toio instead of memcpy pstore/core: drop cmpxchg based updates pstore/ramoops: fixup driver removal parisc: Increase initial kernel mapping size parisc: Fix kernel memory layout regarding position of __gp parisc: Increase KERNEL_INITIAL_SIZE for 32-bit SMP kernels cpufreq: intel_pstate: Fix unsafe HWP MSR access platform: don't return 0 from platform_get_irq[_byname]() on error PCI: Mark Atheros AR9580 to avoid bus reset mmc: sdhci: cast unsigned int to unsigned long long to avoid unexpeted error mmc: block: don't use CMD23 with very old MMC cards rtlwifi: Fix missing country code for Great Britain PM / devfreq: event: remove duplicate devfreq_event_get_drvdata() clk: imx6: initialize GPU clocks regulator: tps65910: Work around silicon erratum SWCZ010 mei: me: add kaby point device ids gpio: mpc8xxx: Correct irq handler function cgroup: Change from CAP_SYS_NICE to CAP_SYS_RESOURCE for cgroup migration permissions UPSTREAM: cpu/hotplug: Handle unbalanced hotplug enable/disable UPSTREAM: arm64: kaslr: fix breakage with CONFIG_MODVERSIONS=y UPSTREAM: arm64: kaslr: keep modules close to the kernel when DYNAMIC_FTRACE=y cgroup: Remove leftover instances of allow_attach BACKPORT: lib: harden strncpy_from_user CHROMIUM: cgroups: relax permissions on moving tasks between cgroups CHROMIUM: remove Android's cgroup generic permissions checks Linux 4.4.27 cfq: fix starvation of asynchronous writes vfs: move permission checking into notify_change() for utimes(NULL) dlm: free workqueues after the connections crypto: vmx - Fix memory corruption caused by p8_ghash crypto: ghash-generic - move common definitions to a new header file ext4: release bh in make_indexed_dir ext4: allow DAX writeback for hole punch ext4: fix memory leak in ext4_insert_range() ext4: reinforce check of i_dtime when clearing high fields of uid and gid ext4: enforce online defrag restriction for encrypted files scsi: ibmvfc: Fix I/O hang when port is not mapped scsi: arcmsr: Simplify user_len checking scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer() async_pq_val: fix DMA memory leak reiserfs: switch to generic_{get,set,remove}xattr() reiserfs: Unlock superblock before calling reiserfs_quota_on_mount() ASoC: Intel: Atom: add a missing star in a memcpy call brcmfmac: fix memory leak in brcmf_fill_bss_param i40e: avoid NULL pointer dereference and recursive errors on early PCI error fuse: fix killing s[ug]id in setattr fuse: invalidate dir dentry after chmod fuse: listxattr: verify xattr list drivers: base: dma-mapping: page align the size when unmap_kernel_range btrfs: assign error values to the correct bio structs serial: 8250_dw: Check the data->pclk when get apb_pclk arm64: Use PoU cache instr for I/D coherency arm64: mm: add code to safely replace TTBR1_EL1 arm64: mm: place __cpu_setup in .text arm64: add function to install the idmap arm64: unmap idmap earlier arm64: unify idmap removal arm64: mm: place empty_zero_page in bss arm64: head.S: use memset to clear BSS arm64: mm: specialise pagetable allocators arm64: mm: remove pointless PAGE_MASKing asm-generic: Fix local variable shadow in __set_fixmap_offset arm64: mm: fold alternatives into .init ARM: 8511/1: ARM64: kernel: PSCI: move PSCI idle management code to drivers/firmware ARM: 8481/2: drivers: psci: replace psci firmware calls ARM: 8480/2: arm64: add implementation for arm-smccc ARM: 8479/2: add implementation for arm-smccc ARM: 8478/2: arm/arm64: add arm-smccc ARM: 8510/1: rework ARM_CPU_SUSPEND dependencies ARM: 8458/1: bL_switcher: add GIC dependency Linux 4.4.26 mm: remove gup_flags FOLL_WRITE games from __get_user_pages() x86/build: Build compressed x86 kernels as PIE arm64: Remove stack duplicating code from jprobes arm64: kprobes: Add KASAN instrumentation around stack accesses arm64: kprobes: Cleanup jprobe_return arm64: kprobes: Fix overflow when saving stack arm64: kprobes: WARN if attempting to step with PSTATE.D=1 kprobes: Add arm64 case in kprobe example module arm64: Add kernel return probes support (kretprobes) arm64: Add trampoline code for kretprobes arm64: kprobes instruction simulation support arm64: Treat all entry code as non-kprobe-able arm64: Blacklist non-kprobe-able symbol arm64: Kprobes with single stepping support arm64: add conditional instruction simulation support arm64: Add more test functions to insn.c arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature Linux 4.4.25 tpm_crb: fix crb_req_canceled behavior tpm: fix a race condition in tpm2_unseal_trusted() ima: use file_dentry() ARM: cpuidle: Fix error return code ARM: dts: MSM8064 remove flags from SPMI/MPP IRQs ARM: dts: mvebu: armada-390: add missing compatibility string and bracket x86/dumpstack: Fix x86_32 kernel_stack_pointer() previous stack access x86/irq: Prevent force migration of irqs which are not in the vector domain x86/boot: Fix kdump, cleanup aborted E820_PRAM max_pfn manipulation KVM: PPC: BookE: Fix a sanity check KVM: MIPS: Drop other CPU ASIDs on guest MMU changes KVM: PPC: Book3s PR: Allow access to unprivileged MMCR2 register mfd: wm8350-i2c: Make sure the i2c regmap functions are compiled mfd: 88pm80x: Double shifting bug in suspend/resume mfd: atmel-hlcdc: Do not sleep in atomic context mfd: rtsx_usb: Avoid setting ucr->current_sg.status ALSA: usb-line6: use the same declaration as definition in header for MIDI manufacturer ID ALSA: usb-audio: Extend DragonFly dB scale quirk to cover other variants ALSA: ali5451: Fix out-of-bound position reporting timekeeping: Fix __ktime_get_fast_ns() regression time: Add cycles to nanoseconds translation mm: Fix build for hardened usercopy ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct ANDROID: binder: Add strong ref checks UPSTREAM: staging/android/ion : fix a race condition in the ion driver ANDROID: android-base: CONFIG_HARDENED_USERCOPY=y UPSTREAM: fs/proc/kcore.c: Add bounce buffer for ktext data UPSTREAM: fs/proc/kcore.c: Make bounce buffer global for read BACKPORT: arm64: Correctly bounds check virt_addr_valid Fix a build breakage in IO latency hist code. UPSTREAM: efi: include asm/early_ioremap.h not asm/efi.h to get early_memremap UPSTREAM: ia64: split off early_ioremap() declarations into asm/early_ioremap.h FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN FROMLIST: arm64: xen: Enable user access before a privcmd hvc call FROMLIST: arm64: Handle faults caused by inadvertent user access with PAN enabled FROMLIST: arm64: Disable TTBR0_EL1 during normal kernel execution FROMLIST: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1 FROMLIST: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros UPSTREAM: arm64: Handle el1 synchronous instruction aborts cleanly UPSTREAM: arm64: include alternative handling in dcache_by_line_op UPSTREAM: arm64: fix "dc cvau" cache operation on errata-affected core UPSTREAM: Revert "arm64: alternatives: add enable parameter to conditional asm macros" UPSTREAM: arm64: Add new asm macro copy_page UPSTREAM: arm64: kill ESR_LNX_EXEC UPSTREAM: arm64: add macro to extract ESR_ELx.EC UPSTREAM: arm64: mm: mark fault_info table const UPSTREAM: arm64: fix dump_instr when PAN and UAO are in use BACKPORT: arm64: Fold proc-macros.S into assembler.h UPSTREAM: arm64: choose memstart_addr based on minimum sparsemem section alignment UPSTREAM: arm64/mm: ensure memstart_addr remains sufficiently aligned UPSTREAM: arm64/kernel: fix incorrect EL0 check in inv_entry macro UPSTREAM: arm64: Add macros to read/write system registers UPSTREAM: arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM UPSTREAM: arm64/efi: split off EFI init and runtime code for reuse by 32-bit ARM UPSTREAM: arm64/efi: mark UEFI reserved regions as MEMBLOCK_NOMAP BACKPORT: arm64: only consider memblocks with NOMAP cleared for linear mapping UPSTREAM: mm/memblock: add MEMBLOCK_NOMAP attribute to memblock memory table ANDROID: dm: android-verity: Remove fec_header location constraint BACKPORT: audit: consistently record PIDs with task_tgid_nr() android-base.cfg: Enable kernel ASLR UPSTREAM: vmlinux.lds.h: allow arch specific handling of ro_after_init data section UPSTREAM: arm64: spinlock: fix spin_unlock_wait for LSE atomics UPSTREAM: arm64: avoid TLB conflict with CONFIG_RANDOMIZE_BASE UPSTREAM: arm64: Only select ARM64_MODULE_PLTS if MODULES=y sched: Add Kconfig option DEFAULT_USE_ENERGY_AWARE to set ENERGY_AWARE feature flag sched/fair: remove printk while schedule is in progress ANDROID: fs: FS tracepoints to track IO. sched/walt: Drop arch-specific timer access ANDROID: fiq_debugger: Pass task parameter to unwind_frame() eas/sched/fair: Fixing comments in find_best_target. input: keyreset: switch to orderly_reboot UPSTREAM: tun: fix transmit timestamp support UPSTREAM: arch/arm/include/asm/pgtable-3level.h: add pmd_mkclean for THP net: inet: diag: expose the socket mark to privileged processes. net: diag: make udp_diag_destroy work for mapped addresses. net: diag: support SOCK_DESTROY for UDP sockets net: diag: allow socket bytecode filters to match socket marks net: diag: slightly refactor the inet_diag_bc_audit error checks. net: diag: Add support to filter on device index UPSTREAM: brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap() Linux 4.4.24 ALSA: hda - Add the top speaker pin config for HP Spectre x360 ALSA: hda - Fix headset mic detection problem for several Dell laptops ACPICA: acpi_get_sleep_type_data: Reduce warnings ALSA: hda - Adding one more ALC255 pin definition for headset problem Revert "usbtmc: convert to devm_kzalloc" USB: serial: cp210x: Add ID for a Juniper console Staging: fbtft: Fix bug in fbtft-core usb: misc: legousbtower: Fix NULL pointer deference USB: serial: cp210x: fix hardware flow-control disable dm log writes: fix bug with too large bios clk: xgene: Add missing parenthesis when clearing divider value aio: mark AIO pseudo-fs noexec batman-adv: remove unused callback from batadv_algo_ops struct IB/mlx4: Use correct subnet-prefix in QP1 mads under SR-IOV IB/mlx4: Fix code indentation in QP1 MAD flow IB/mlx4: Fix incorrect MC join state bit-masking on SR-IOV IB/ipoib: Don't allow MC joins during light MC flush IB/core: Fix use after free in send_leave function IB/ipoib: Fix memory corruption in ipoib cm mode connect flow KVM: nVMX: postpone VMCS changes on MSR_IA32_APICBASE write dmaengine: at_xdmac: fix to pass correct device identity to free_irq() kernel/fork: fix CLONE_CHILD_CLEARTID regression in nscd ASoC: omap-mcpdm: Fix irq resource handling sysctl: handle error writing UINT_MAX to u32 fields powerpc/prom: Fix sub-processor option passed to ibm, client-architecture-support brcmsmac: Initialize power in brcms_c_stf_ss_algo_channel_get() brcmsmac: Free packet if dma_mapping_error() fails in dma_rxfill brcmfmac: Fix glob_skb leak in brcmf_sdiod_recv_chain ASoC: Intel: Skylake: Fix error return code in skl_probe() pNFS/flexfiles: Fix layoutcommit after a commit to DS pNFS/files: Fix layoutcommit after a commit to DS NFS: Don't drop CB requests with invalid principals svc: Avoid garbage replies when pc_func() returns rpc_drop_reply dmaengine: at_xdmac: fix debug string fnic: pci_dma_mapping_error() doesn't return an error code avr32: off by one in at32_init_pio() ath9k: Fix programming of minCCA power threshold gspca: avoid unused variable warnings em28xx-i2c: rt_mutex_trylock() returns zero on failure NFC: fdp: Detect errors from fdp_nci_create_conn() iwlmvm: mvm: set correct state in smart-fifo configuration tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO pstore: drop file opened reference count blk-mq: actually hook up defer list when running requests hwrng: omap - Fix assumption that runtime_get_sync will always succeed ARM: sa1111: fix pcmcia suspend/resume ARM: shmobile: fix regulator quirk for Gen2 ARM: sa1100: clear reset status prior to reboot ARM: sa1100: fix 3.6864MHz clock ARM: sa1100: register clocks early ARM: sun5i: Fix typo in trip point temperature regulator: qcom_smd: Fix voltage ranges for pm8x41 regulator: qcom_spmi: Update mvs1/mvs2 switches on pm8941 regulator: qcom_spmi: Add support for get_mode/set_mode on switches regulator: qcom_spmi: Add support for S4 supply on pm8941 tpm: fix byte-order for the value read by tpm2_get_tpm_pt printk: fix parsing of "brl=" option MIPS: uprobes: fix use of uninitialised variable MIPS: Malta: Fix IOCU disable switch read for MIPS64 MIPS: fix uretprobe implementation MIPS: uprobes: remove incorrect set_orig_insn arm64: debug: avoid resetting stepping state machine when TIF_SINGLESTEP ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7 irqchip/gicv3: Silence noisy DEBUG_PER_CPU_MAPS warning gpio: sa1100: fix irq probing for ucb1x00 usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame() ceph: fix race during filling readdir cache iwlwifi: mvm: don't use ret when not initialised iwlwifi: pcie: fix access to scratch buffer spi: sh-msiof: Avoid invalid clock generator parameters hwmon: (adt7411) set bit 3 in CFG1 register nvmem: Declare nvmem_cell_read() consistently ipvs: fix bind to link-local mcast IPv6 address in backup tools/vm/slabinfo: fix an unintentional printf mmc: pxamci: fix potential oops drivers/perf: arm_pmu: Fix leak in error path pinctrl: Flag strict is a field in struct pinmux_ops pinctrl: uniphier: fix .pin_dbg_show() callback i40e: avoid null pointer dereference perf/core: Fix pmu::filter_match for SW-led groups iwlwifi: mvm: fix a few firmware capability checks usb: musb: fix DMA for host mode usb: musb: Fix DMA desired mode for Mentor DMA engine ARM: 8617/1: dma: fix dma_max_pfn() ARM: 8616/1: dt: Respect property size when parsing CPUs drm/radeon/si/dpm: add workaround for for Jet parts drm/nouveau/fifo/nv04: avoid ramht race against cookie insertion x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID x86/init: Fix cr4_init_shadow() on CR4-less machines can: dev: fix deadlock reported after bus-off mm,ksm: fix endless looping in allocating memory when ksm enable mtd: nand: davinci: Reinitialize the HW ECC engine in 4bit hwctl cpuset: handle race between CPU hotplug and cpuset_hotplug_work usercopy: fold builtin_const check into inline function Linux 4.4.23 hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common() qxl: check for kmap failures power: supply: max17042_battery: fix model download bug. power_supply: tps65217-charger: fix missing platform_set_drvdata() PM / hibernate: Fix rtree_next_node() to avoid walking off list ends PM / hibernate: Restore processor state before using per-CPU variables MIPS: paravirt: Fix undefined reference to smp_bootstrap MIPS: Add a missing ".set pop" in an early commit MIPS: Avoid a BUG warning during prctl(PR_SET_FP_MODE, ...) MIPS: Remove compact branch policy Kconfig entries MIPS: vDSO: Fix Malta EVA mapping to vDSO page structs MIPS: SMP: Fix possibility of deadlock when bringing CPUs online MIPS: Fix pre-r6 emulation FPU initialisation i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended i2c-eg20t: fix race between i2c init and interrupt enable btrfs: ensure that file descriptor used with subvol ioctls is a dir nl80211: validate number of probe response CSA counters can: flexcan: fix resume function mm: delete unnecessary and unsafe init_tlb_ubc() tracing: Move mutex to protect against resetting of seq data fix memory leaks in tracing_buffers_splice_read() power: reset: hisi-reboot: Unmap region obtained by of_iomap mtd: pmcmsp-flash: Allocating too much in init_msp_flash() mtd: maps: sa1100-flash: potential NULL dereference fix fault_in_multipages_...() on architectures with no-op access_ok() fanotify: fix list corruption in fanotify_get_response() fsnotify: add a way to stop queueing events on group shutdown xfs: prevent dropping ioend completions during buftarg wait autofs: use dentry flags to block walks during expire autofs races pwm: Mark all devices as "might sleep" bridge: re-introduce 'fix parsing of MLDv2 reports' net: smc91x: fix SMC accesses Revert "phy: IRQ cannot be shared" net: dsa: bcm_sf2: Fix race condition while unmasking interrupts net/mlx5: Added missing check of msg length in verifying its signature tipc: fix NULL pointer dereference in shutdown() net/irda: handle iriap_register_lsap() allocation failure vti: flush x-netns xfrm cache when vti interface is removed af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock' Revert "af_unix: Fix splice-bind deadlock" bonding: Fix bonding crash megaraid: fix null pointer check in megasas_detach_one(). nouveau: fix nv40_perfctr_next() cleanup regression Staging: iio: adc: fix indent on break statement iwlegacy: avoid warning about missing braces ath9k: fix misleading indentation am437x-vfpe: fix typo in vpfe_get_app_input_index Add braces to avoid "ambiguous ‘else’" compiler warnings net: caif: fix misleading indentation Makefile: Mute warning for __builtin_return_address(>0) for tracing only Disable "frame-address" warning Disable "maybe-uninitialized" warning globally gcov: disable -Wmaybe-uninitialized warning Kbuild: disable 'maybe-uninitialized' warning for CONFIG_PROFILE_ALL_BRANCHES kbuild: forbid kernel directory to contain spaces and colons tools: Support relative directory path for 'O=' Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially kbuild: Do not run modules_install and install in paralel ocfs2: fix start offset to ocfs2_zero_range_for_truncate() ocfs2/dlm: fix race between convert and migration crypto: echainiv - Replace chaining with multiplication crypto: skcipher - Fix blkcipher walk OOM crash crypto: arm/aes-ctr - fix NULL dereference in tail processing crypto: arm64/aes-ctr - fix NULL dereference in tail processing tcp: properly scale window in tcp_v[46]_reqsk_send_ack() tcp: fix use after free in tcp_xmit_retransmit_queue() tcp: cwnd does not increase in TCP YeAH ipv6: release dst in ping_v6_sendmsg ipv4: panic in leaf_walk_rcu due to stale node pointer reiserfs: fix "new_insert_key may be used uninitialized ..." Fix build warning in kernel/cpuset.c include/linux/kernel.h: change abs() macro so it uses consistent return type Linux 4.4.22 openrisc: fix the fix of copy_from_user() avr32: fix 'undefined reference to `___copy_from_user' ia64: copy_from_user() should zero the destination on access_ok() failure genirq/msi: Fix broken debug output ppc32: fix copy_from_user() sparc32: fix copy_from_user() mn10300: copy_from_user() should zero on access_ok() failure... nios2: copy_from_user() should zero the tail of destination openrisc: fix copy_from_user() parisc: fix copy_from_user() metag: copy_from_user() should zero the destination on access_ok() failure alpha: fix copy_from_user() asm-generic: make copy_from_user() zero the destination properly mips: copy_from_user() must zero the destination on access_ok() failure hexagon: fix strncpy_from_user() error return sh: fix copy_from_user() score: fix copy_from_user() and friends blackfin: fix copy_from_user() cris: buggered copy_from_user/copy_to_user/clear_user frv: fix clear_user() asm-generic: make get_user() clear the destination on errors ARC: uaccess: get_user to zero out dest in cause of fault s390: get_user() should zero on failure score: fix __get_user/get_user nios2: fix __get_user() sh64: failing __get_user() should zero m32r: fix __get_user() mn10300: failing __get_user() and get_user() should zero fix minor infoleak in get_user_ex() microblaze: fix copy_from_user() avr32: fix copy_from_user() microblaze: fix __get_user() fix iov_iter_fault_in_readable() irqchip/atmel-aic: Fix potential deadlock in ->xlate() genirq: Provide irq_gc_{lock_irqsave,unlock_irqrestore}() helpers drm: Only use compat ioctl for addfb2 on X86/IA64 drm: atmel-hlcdc: Fix vertical scaling net: simplify napi_synchronize() to avoid warnings kconfig: tinyconfig: provide whole choice blocks to avoid warnings soc: qcom/spm: shut up uninitialized variable warning pinctrl: at91-pio4: use %pr format string for resource mmc: dw_mmc: use resource_size_t to store physical address drm/i915: Avoid pointer arithmetic in calculating plane surface offset mpssd: fix buffer overflow warning gma500: remove annoying deprecation warning ipv6: addrconf: fix dev refcont leak when DAD failed sched/core: Fix a race between try_to_wake_up() and a woken up task Revert "wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel" ath9k: fix using sta->drv_priv before initializing it md-cluster: make md-cluster also can work when compiled into kernel xhci: fix null pointer dereference in stop command timeout function fuse: direct-io: don't dirty ITER_BVEC pages Btrfs: remove root_log_ctx from ctx list before btrfs_sync_log returns crypto: cryptd - initialize child shash_desc on import arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb() pinctrl: sunxi: fix uart1 CTS/RTS pins at PG on A23/A33 pinctrl: pistachio: fix mfio pll_lock pinmux dm crypt: fix error with too large bios dm log writes: move IO accounting earlier to fix error path dm log writes: fix check of kthread_run() return value bus: arm-ccn: Fix XP watchpoint settings bitmask bus: arm-ccn: Do not attempt to configure XPs for cycle counter bus: arm-ccn: Fix PMU handling of MN ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI ARM: dts: overo: fix gpmc nand on boards with ethernet ARM: dts: overo: fix gpmc nand cs0 range ARM: dts: imx6qdl: Fix SPDIF regression ARM: OMAP3: hwmod data: Add sysc information for DSI ARM: kirkwood: ib62x0: fix size of u-boot environment partition ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx ARM: imx6: add missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul ARM: AM43XX: hwmod: Fix RSTST register offset for pruss cpuset: make sure new tasks conform to the current config of the cpuset net: thunderx: Fix OOPs with ethtool --register-dump USB: change bInterval default to 10 ms ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB) usb: chipidea: udc: fix NULL ptr dereference in isr_setup_status_phase usb: renesas_usbhs: fix clearing the {BRDY,BEMP}STS condition USB: serial: simple: add support for another Infineon flashloader serial: 8250: added acces i/o products quad and octal serial cards serial: 8250_mid: fix divide error bug if baud rate is 0 iio: ensure ret is initialized to zero before entering do loop iio:core: fix IIO_VAL_FRACTIONAL sign handling iio: accel: kxsd9: Fix scaling bug iio: fix pressure data output unit in hid-sensor-attributes iio: accel: bmc150: reset chip at init time iio: adc: at91: unbreak channel adc channel 3 iio: ad799x: Fix buffered capture for ad7991/ad7995/ad7999 iio: adc: ti_am335x_adc: Increase timeout value waiting for ADC sample iio: adc: ti_am335x_adc: Protect FIFO1 from concurrent access iio: adc: rockchip_saradc: reset saradc controller before programming it iio: proximity: as3935: set up buffer timestamps for non-zero values iio: accel: kxsd9: Fix raw read return kvm-arm: Unmap shadow pagetables properly x86/AMD: Apply erratum 665 on machines without a BIOS fix x86/paravirt: Do not trace _paravirt_ident_*() functions ARC: mm: fix build breakage with STRICT_MM_TYPECHECKS IB/uverbs: Fix race between uverbs_close and remove_one dm flakey: fix reads to be issued if drop_writes configured audit: fix exe_file access in audit_exe_compare mm: introduce get_task_exe_file kexec: fix double-free when failing to relocate the purgatory NFSv4.1: Fix the CREATE_SESSION slot number accounting pNFS: Ensure LAYOUTGET and LAYOUTRETURN are properly serialised nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock NFSv4.x: Fix a refcount leak in nfs_callback_up_net pNFS: The client must not do I/O to the DS if it's lease has expired kernfs: don't depend on d_find_any_alias() when generating notifications powerpc/mm: Don't alias user region to other regions below PAGE_OFFSET powerpc/powernv : Drop reference added by kset_find_obj() powerpc/tm: do not use r13 for tabort_syscall tipc: move linearization of buffers to generic code lightnvm: put bio before return fscrypto: require write access to mount to set encryption policy Revert "KVM: x86: fix missed hardware breakpoints" MIPS: KVM: Check for pfn noslot case clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function fscrypto: add authorization check for setting encryption policy ext4: use __GFP_NOFAIL in ext4_free_blocks() Conflicts: arch/arm/kernel/devtree.c arch/arm64/Kconfig arch/arm64/kernel/arm64ksyms.c arch/arm64/kernel/psci.c arch/arm64/mm/fault.c drivers/android/binder.c drivers/usb/host/xhci-hub.c fs/ext4/readpage.c include/linux/mmc/core.h include/linux/mmzone.h mm/memcontrol.c net/core/filter.c net/netlink/af_netlink.c net/netlink/af_netlink.h Change-Id: I99fe7a0914e83e284b11b33185b71448a8999d1f Signed-off-by: Runmin Wang <runminw@codeaurora.org> Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-02-03ANDROID: vfs: Add permission2 for filesystems with per mount permissionsDaniel Rosenberg
This allows filesystems to use their mount private data to influence the permssions they return in permission2. It has been separated into a new call to avoid disrupting current permission users. Change-Id: I9d416e3b8b6eca84ef3e336bd2af89ddd51df6ca Signed-off-by: Daniel Rosenberg <drosen@google.com>
2016-12-16Merge branch 'v4.4-16.09-android-tmp' into lsk-v4.4-16.09-androidRunmin Wang
* v4.4-16.09-android-tmp: unsafe_[get|put]_user: change interface to use a error target label usercopy: remove page-spanning test for now usercopy: fix overlap check for kernel text mm/slub: support left redzone Linux 4.4.21 lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs regulator: anatop: allow regulator to be in bypass mode hwrng: exynos - Disable runtime PM on probe failure cpufreq: Fix GOV_LIMITS handling for the userspace governor metag: Fix atomic_*_return inline asm constraints scsi: fix upper bounds check of sense key in scsi_sense_key_string() ALSA: timer: fix NULL pointer dereference on memory allocation failure ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE ALSA: timer: fix NULL pointer dereference in read()/ioctl() race ALSA: hda - Enable subwoofer on Dell Inspiron 7559 ALSA: hda - Add headset mic quirk for Dell Inspiron 5468 ALSA: rawmidi: Fix possible deadlock with virmidi registration ALSA: fireworks: accessing to user space outside spinlock ALSA: firewire-tascam: accessing to user space outside spinlock ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114 crypto: caam - fix IV loading for authenc (giv)decryption uprobes: Fix the memcg accounting x86/apic: Do not init irq remapping if ioapic is disabled vhost/scsi: fix reuse of &vq->iov[out] in response bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two. ubifs: Fix assertion in layout_in_gaps() ovl: fix workdir creation ovl: listxattr: use strnlen() ovl: remove posix_acl_default from workdir ovl: don't copy up opaqueness wrappers for ->i_mutex access lustre: remove unused declaration timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING timekeeping: Cap array access in timekeeping_debug xfs: fix superblock inprogress check ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup drm/msm: fix use of copy_from_user() while holding spinlock drm: Reject page_flip for !DRIVER_MODESET drm/radeon: fix radeon_move_blit on 32bit systems s390/sclp_ctl: fix potential information leak with /dev/sclp rds: fix an infoleak in rds_inc_info_copy powerpc/tm: Avoid SLB faults in treclaim/trecheckpoint when RI=0 nvme: Call pci_disable_device on the error path. cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork block: make sure a big bio is split into at most 256 bvecs block: Fix race triggered by blk_set_queue_dying() ext4: avoid modifying checksum fields directly during checksum verification ext4: avoid deadlock when expanding inode size ext4: properly align shifted xattrs when expanding inodes ext4: fix xattr shifting when expanding inodes part 2 ext4: fix xattr shifting when expanding inodes ext4: validate that metadata blocks do not overlap superblock net: Use ns_capable_noaudit() when determining net sysctl permissions kernel: Add noaudit variant of ns_capable() KEYS: Fix ASN.1 indefinite length object parsing drivers:hv: Lock access to hyperv_mmio resource tree cxlflash: Move to exponential back-off when cmd_room is not available netfilter: x_tables: check for size overflow drm/amdgpu/cz: enable/disable vce dpm even if vce pg is disabled cred: Reject inodes with invalid ids in set_create_file_as() fs: Check for invalid i_uid in may_follow_link() IB/IPoIB: Do not set skb truesize since using one linearskb udp: properly support MSG_PEEK with truncated buffers crypto: nx-842 - Mask XERS0 bit in return value cxlflash: Fix to avoid virtual LUN failover failure cxlflash: Fix to escalate LINK_RESET also on port 1 tipc: fix nl compat regression for link statistics tipc: fix an infoleak in tipc_nl_compat_link_dump netfilter: x_tables: check for size overflow Bluetooth: Add support for Intel Bluetooth device 8265 [8087:0a2b] drm/i915: Check VBT for port presence in addition to the strap on VLV/CHV drm/i915: Only ignore eDP ports that are connected Input: xpad - move pending clear to the correct location net: thunderx: Fix link status reporting x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances crypto: vmx - IV size failing on skcipher API tda10071: Fix dependency to REGMAP_I2C crypto: vmx - Fix ABI detection crypto: vmx - comply with ABIs that specify vrsave as reserved. HID: core: prevent out-of-bound readings lpfc: Fix DMA faults observed upon plugging loopback connector block: fix blk_rq_get_max_sectors for driver private requests irqchip/gicv3-its: numa: Enable workaround for Cavium thunderx erratum 23144 clocksource: Allow unregistering the watchdog btrfs: Continue write in case of can_not_nocow blk-mq: End unstarted requests on dying queue cxlflash: Fix to resolve dead-lock during EEH recovery drm/radeon/mst: fix regression in lane/link handling. ecryptfs: fix handling of directory opening ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps drm: Balance error path for GEM handle allocation ntp: Fix ADJ_SETOFFSET being used w/ ADJ_NANO time: Verify time values in adjtimex ADJ_SETOFFSET to avoid overflow Input: xpad - correctly handle concurrent LED and FF requests net: thunderx: Fix receive packet stats net: thunderx: Fix for multiqset not configured upon interface toggle perf/x86/cqm: Fix CQM memory leak and notifier leak perf/x86/cqm: Fix CQM handling of grouping events into a cache_group s390/crypto: provide correct file mode at device register. proc: revert /proc/<pid>/maps [stack:TID] annotation intel_idle: Support for Intel Xeon Phi Processor x200 Product Family cxlflash: Fix to avoid unnecessary scan with internal LUNs Drivers: hv: vmbus: don't manipulate with clocksources on crash Drivers: hv: vmbus: avoid scheduling in interrupt context in vmbus_initiate_unload() Drivers: hv: vmbus: avoid infinite loop in init_vp_index() arcmsr: fixes not release allocated resource arcmsr: fixed getting wrong configuration data s390/pci_dma: fix DMA table corruption with > 4 TB main memory net/mlx5e: Don't modify CQ before it was created net/mlx5e: Don't try to modify CQ moderation if it is not supported mmc: sdhci: Do not BUG on invalid vdd UVC: Add support for R200 depth camera sched/numa: Fix use-after-free bug in the task_numa_compare ALSA: hda - add codec support for Kabylake display audio codec drm/i915: Fix hpd live status bits for g4x tipc: fix nullptr crash during subscription cancel arm64: Add workaround for Cavium erratum 27456 net: thunderx: Fix for Qset error due to CQ full drm/radeon: fix dp link rate selection (v2) drm/amdgpu: fix dp link rate selection (v2) qla2xxx: Use ATIO type to send correct tmr response mmc: sdhci: 64-bit DMA actually has 4-byte alignment drm/atomic: Do not unset crtc when an encoder is stolen drm/i915/skl: Add missing SKL ids drm/i915/bxt: update list of PCIIDs hrtimer: Catch illegal clockids i40e/i40evf: Fix RSS rx-flow-hash configuration through ethtool mpt3sas: Fix for Asynchronous completion of timedout IO and task abort of timedout IO. mpt3sas: A correction in unmap_resources net: cavium: liquidio: fix check for in progress flag arm64: KVM: Configure TCR_EL2.PS at runtime irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor pwm: lpc32xx: fix and simplify duty cycle and period calculations pwm: lpc32xx: correct number of PWM channels from 2 to 1 pwm: fsl-ftm: Fix clock enable/disable when using PM megaraid_sas: Add an i/o barrier megaraid_sas: Fix SMAP issue megaraid_sas: Do not allow PCI access during OCR s390/cio: update measurement characteristics s390/cio: ensure consistent measurement state s390/cio: fix measurement characteristics memleak qeth: initialize net_device with carrier off lpfc: Fix external loopback failure. lpfc: Fix mbox reuse in PLOGI completion lpfc: Fix RDP Speed reporting. lpfc: Fix crash in fcp command completion path. lpfc: Fix driver crash when module parameter lpfc_fcp_io_channel set to 16 lpfc: Fix RegLogin failed error seen on Lancer FC during port bounce lpfc: Fix the FLOGI discovery logic to comply with T11 standards lpfc: Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get. cxl: Enable PCI device ID for future IBM CXL adapter cxl: fix build for GCC 4.6.x cxlflash: Enable device id for future IBM CXL adapter cxlflash: Resolve oops in wait_port_offline cxlflash: Fix to resolve cmd leak after host reset cxl: Fix DSI misses when the context owning task exits cxl: Fix possible idr warning when contexts are released Drivers: hv: vmbus: fix rescind-offer handling for device without a driver Drivers: hv: vmbus: serialize process_chn_event() and vmbus_close_internal() Drivers: hv: vss: run only on supported host versions drivers/hv: cleanup synic msrs if vmbus connect failed Drivers: hv: util: catch allocation errors tools: hv: report ENOSPC errors in hv_fcopy_daemon Drivers: hv: utils: run polling callback always in interrupt context Drivers: hv: util: Increase the timeout for util services lightnvm: fix missing grown bad block type lightnvm: fix locking and mempool in rrpc_lun_gc lightnvm: unlock rq and free ppa_list on submission fail lightnvm: add check after mempool allocation lightnvm: fix incorrect nr_free_blocks stat lightnvm: fix bio submission issue cxlflash: a couple off by one bugs fm10k: Cleanup exception handling for mailbox interrupt fm10k: Cleanup MSI-X interrupts in case of failure fm10k: reinitialize queuing scheme after calling init_hw fm10k: always check init_hw for errors fm10k: reset max_queues on init_hw_vf failure fm10k: Fix handling of NAPI budget when multiple queues are enabled per vector fm10k: Correct MTU for jumbo frames fm10k: do not assume VF always has 1 queue clk: xgene: Fix divider with non-zero shift value e1000e: fix division by zero on jumbo MTUs e1000: fix data race between tx_ring->next_to_clean ixgbe: Fix handling of NAPI budget when multiple queues are enabled per vector igb: fix NULL derefs due to skipped SR-IOV enabling igb: use the correct i210 register for EEMNGCTL igb: don't unmap NULL hw_addr i40e: Fix Rx hash reported to the stack by our driver i40e: clean whole mac filter list i40evf: check rings before freeing resources i40e: don't add zero MAC filter i40e: properly delete VF MAC filters i40e: Fix memory leaks, sideband filter programming i40e: fix: do not sleep in netdev_ops i40e/i40evf: Fix RS bit update in Tx path and disable force WB workaround i40evf: handle many MAC filters correctly i40e: Workaround fix for mss < 256 issue UPSTREAM: audit: fix a double fetch in audit_log_single_execve_arg() UPSTREAM: ARM: 8494/1: mm: Enable PXN when running non-LPAE kernel on LPAE processor FIXUP: sched/tune: update accouting before CPU capacity FIXUP: sched/tune: add fixes missing from a previous patch arm: Fix #if/#ifdef typo in topology.c arm: Fix build error "conflicting types for 'scale_cpu_capacity'" sched/walt: use do_div instead of division operator DEBUG: cpufreq: fix cpu_capacity tracing build for non-smp systems sched/walt: include missing header for arm_timer_read_counter() cpufreq: Kconfig: Fixup incorrect selection by CPU_FREQ_DEFAULT_GOV_SCHED sched/fair: Avoid redundant idle_cpu() call in update_sg_lb_stats() FIXUP: sched: scheduler-driven cpu frequency selection sched/rt: Add Kconfig option to enable panicking for RT throttling sched/rt: print RT tasks when RT throttling is activated UPSTREAM: sched: Fix a race between __kthread_bind() and sched_setaffinity() sched/fair: Favor higher cpus only for boosted tasks vmstat: make vmstat_updater deferrable again and shut down on idle sched/fair: call OPP update when going idle after migration sched/cpufreq_sched: fix thermal capping events sched/fair: Picking cpus with low OPPs for tasks that prefer idle CPUs FIXUP: sched/tune: do initialization as a postcore_initicall DEBUG: sched: add tracepoint for RD overutilized sched/tune: Introducing a new schedtune attribute prefer_idle sched: use util instead of capacity to select busy cpu arch_timer: add error handling when the MPM global timer is cleared FIXUP: sched: Fix double-release of spinlock in move_queued_task FIXUP: sched/fair: Fix hang during suspend in sched_group_energy FIXUP: sched: fix SchedFreq integration for both PELT and WALT sched: EAS: Avoid causing spikes to max-freq unnecessarily FIXUP: sched: fix set_cfs_cpu_capacity when WALT is in use sched/walt: Accounting for number of irqs pending on each core sched: Introduce Window Assisted Load Tracking (WALT) sched/tune: fix PB and PC cuts indexes definition sched/fair: optimize idle cpu selection for boosted tasks FIXUP: sched/tune: fix accounting for runnable tasks sched/tune: use a single initialisation function sched/{fair,tune}: simplify fair.c code FIXUP: sched/tune: fix payoff calculation for boost region sched/tune: Add support for negative boost values FIX: sched/tune: move schedtune_nornalize_energy into fair.c FIX: sched/tune: update usage of boosted task utilisation on CPU selection sched/fair: add tunable to set initial task load sched/fair: add tunable to force selection at cpu granularity sched: EAS: take cstate into account when selecting idle core sched/cpufreq_sched: Consolidated update FIXUP: sched: fix build for non-SMP target DEBUG: sched/tune: add tracepoint on P-E space filtering DEBUG: sched/tune: add tracepoint for energy_diff() values DEBUG: sched/tune: add tracepoint for task boost signal arm: topology: Define TC2 energy and provide it to the scheduler CHROMIUM: sched: update the average of nr_running DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values DEBUG: schedtune: add tracepoint for CPU boost signal DEBUG: schedtune: add tracepoint for SchedTune configuration update DEBUG: sched: add energy procfs interface DEBUG: sched,cpufreq: add cpu_capacity change tracepoint DEBUG: sched: add tracepoint for CPU load/util signals DEBUG: sched: add tracepoint for task load/util signals DEBUG: sched: add tracepoint for cpu/freq scale invariance sched/fair: filter energy_diff() based on energy_payoff value sched/tune: add support to compute normalized energy sched/fair: keep track of energy/capacity variations sched/fair: add boosted task utilization sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value sched/tune: compute and keep track of per CPU boost value sched/tune: add initial support for CGroups based boosting sched/fair: add boosted CPU usage sched/fair: add function to convert boost value into "margin" sched/tune: add sysctl interface to define a boost value sched/tune: add detailed documentation fixup! sched/fair: jump to max OPP when crossing UP threshold fixup! sched: scheduler-driven cpu frequency selection sched: rt scheduler sets capacity requirement sched: deadline: use deadline bandwidth in scale_rt_capacity sched: remove call of sched_avg_update from sched_rt_avg_update sched/cpufreq_sched: add trace events sched/fair: jump to max OPP when crossing UP threshold sched/fair: cpufreq_sched triggers for load balancing sched/{core,fair}: trigger OPP change request on fork() sched/fair: add triggers for OPP change requests sched: scheduler-driven cpu frequency selection cpufreq: introduce cpufreq_driver_is_slow sched: Consider misfit tasks when load-balancing sched: Add group_misfit_task load-balance type sched: Add per-cpu max capacity to sched_group_capacity sched: Do eas idle balance regardless of the rq avg idle value arm64: Enable max freq invariant scheduler load-tracking and capacity support arm: Enable max freq invariant scheduler load-tracking and capacity support sched: Update max cpu capacity in case of max frequency constraints cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support arm64, topology: Updates to use DT bindings for EAS costing data sched: Support for extracting EAS energy costs from DT Documentation: DT bindings for energy model cost data required by EAS sched: Disable energy-unfriendly nohz kicks sched: Consider a not over-utilized energy-aware system as balanced sched: Energy-aware wake-up task placement sched: Determine the current sched_group idle-state sched, cpuidle: Track cpuidle state index in the scheduler sched: Add over-utilization/tipping point indicator sched: Estimate energy impact of scheduling decisions sched: Extend sched_group_energy to test load-balancing decisions sched: Calculate energy consumption of sched_group sched: Highest energy aware balancing sched_domain level pointer sched: Relocated cpu_util() and change return type sched: Compute cpu capacity available at current frequency arm64: Cpu invariant scheduler load-tracking and capacity support arm: Cpu invariant scheduler load-tracking and capacity support sched: Introduce SD_SHARE_CAP_STATES sched_domain flag sched: Initialize energy data structures sched: Introduce energy data structures sched: Make energy awareness a sched feature sched: Documentation for scheduler energy cost model sched: Prevent unnecessary active balance of single task in sched group sched: Enable idle balance to pull single task towards cpu with higher capacity sched: Consider spare cpu capacity at task wake-up sched: Add cpu capacity awareness to wakeup balancing sched: Store system-wide maximum cpu capacity in root domain arm: Update arch_scale_cpu_capacity() to reflect change to define arm64: Enable frequency invariant scheduler load-tracking support arm: Enable frequency invariant scheduler load-tracking support cpufreq: Frequency invariant scheduler load-tracking support sched/fair: Fix new task's load avg removed from source CPU in wake_up_new_task() FROMLIST: pstore: drop pmsg bounce buffer UPSTREAM: usercopy: remove page-spanning test for now UPSTREAM: usercopy: force check_object_size() inline BACKPORT: usercopy: fold builtin_const check into inline function UPSTREAM: x86/uaccess: force copy_*_user() to be inlined UPSTREAM: HID: core: prevent out-of-bound readings Android: Fix build breakages. UPSTREAM: tty: Prevent ldisc drivers from re-using stale tty fields UPSTREAM: netfilter: nfnetlink: correctly validate length of batch messages cpuset: Make cpusets restore on hotplug UPSTREAM: mm/slub: support left redzone UPSTREAM: Make the hardened user-copy code depend on having a hardened allocator Android: MMC/UFS IO Latency Histograms. UPSTREAM: usercopy: fix overlap check for kernel text UPSTREAM: usercopy: avoid potentially undefined behavior in pointer math UPSTREAM: unsafe_[get|put]_user: change interface to use a error target label BACKPORT: arm64: mm: fix location of _etext BACKPORT: ARM: 8583/1: mm: fix location of _etext BACKPORT: Don't show empty tag stats for unprivileged uids UPSTREAM: tcp: fix use after free in tcp_xmit_retransmit_queue() ANDROID: base-cfg: drop SECCOMP_FILTER config UPSTREAM: [media] xc2028: unlock on error in xc2028_set_config() UPSTREAM: [media] xc2028: avoid use after free ANDROID: base-cfg: enable SECCOMP config ANDROID: rcu_sync: Export rcu_sync_lockdep_assert RFC: FROMLIST: cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork RFC: FROMLIST: cgroup: avoid synchronize_sched() in __cgroup_procs_write() RFC: FROMLIST: locking/percpu-rwsem: Optimize readers and reduce global impact net: ipv6: Fix ping to link-local addresses. ipv6: fix endianness error in icmpv6_err ANDROID: dm: android-verity: Allow android-verity to be compiled as an independent module backporting: a brief introduce of backported feautures on 4.4 Linux 4.4.20 sysfs: correctly handle read offset on PREALLOC attrs hwmon: (iio_hwmon) fix memory leak in name attribute ALSA: line6: Fix POD sysfs attributes segfault ALSA: line6: Give up on the lock while URBs are released. ALSA: line6: Remove double line6_pcm_release() after failed acquire. ACPI / SRAT: fix SRAT parsing order with both LAPIC and X2APIC present ACPI / sysfs: fix error code in get_status() ACPI / drivers: replace acpi_probe_lock spinlock with mutex ACPI / drivers: fix typo in ACPI_DECLARE_PROBE_ENTRY macro staging: comedi: ni_mio_common: fix wrong insn_write handler staging: comedi: ni_mio_common: fix AO inttrig backwards compatibility staging: comedi: comedi_test: fix timer race conditions staging: comedi: daqboard2000: bug fix board type matching code USB: serial: option: add WeTelecom 0x6802 and 0x6803 products USB: serial: option: add WeTelecom WM-D200 USB: serial: mos7840: fix non-atomic allocation in write path USB: serial: mos7720: fix non-atomic allocation in write path USB: fix typo in wMaxPacketSize validation usb: chipidea: udc: don't touch DP when controller is in host mode USB: avoid left shift by -1 dmaengine: usb-dmac: check CHCR.DE bit in usb_dmac_isr_channel() crypto: qat - fix aes-xts key sizes crypto: nx - off by one bug in nx_of_update_msc() Input: i8042 - set up shared ps2_cmd_mutex for AUX ports Input: i8042 - break load dependency between atkbd/psmouse and i8042 Input: tegra-kbc - fix inverted reset logic btrfs: properly track when rescan worker is running btrfs: waiting on qgroup rescan should not always be interruptible fs/seq_file: fix out-of-bounds read gpio: Fix OF build problem on UM usb: renesas_usbhs: gadget: fix return value check in usbhs_mod_gadget_probe() megaraid_sas: Fix probing cards without io port mpt3sas: Fix resume on WarpDrive flash cards cdc-acm: fix wrong pipe type on rx interrupt xfers i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer() mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper aacraid: Check size values after double-fetch from user ARC: Elide redundant setup of DMA callbacks ARC: Call trace_hardirqs_on() before enabling irqs ARC: use correct offset in pt_regs for saving/restoring user mode r25 ARC: build: Better way to detect ISA compatible toolchain drm/i915: fix aliasing_ppgtt leak drm/amdgpu: record error code when ring test failed drm/amd/amdgpu: sdma resume fail during S4 on CI drm/amdgpu: skip TV/CV in display parsing drm/amdgpu: avoid a possible array overflow drm/amdgpu: fix amdgpu_move_blit on 32bit systems drm/amdgpu: Change GART offset to 64-bit iio: fix sched WARNING "do not call blocking ops when !TASK_RUNNING" sched/nohz: Fix affine unpinned timers mess sched/cputime: Fix NO_HZ_FULL getrusage() monotonicity regression of: fix reference counting in of_graph_get_endpoint_by_regs arm64: dts: rockchip: add reset saradc node for rk3368 SoCs mac80211: fix purging multicast PS buffer queue s390/dasd: fix hanging device after clear subchannel EDAC: Increment correct counter in edac_inc_ue_error() pinctrl/amd: Remove the default de-bounce time iommu/arm-smmu: Don't BUG() if we find aborting STEs with disable_bypass iommu/arm-smmu: Fix CMDQ error handling iommu/dma: Don't put uninitialised IOVA domains xhci: Make sure xhci handles USB_SPEED_SUPER_PLUS devices. USB: serial: ftdi_sio: add PIDs for Ivium Technologies devices USB: serial: ftdi_sio: add device ID for WICED USB UART dev board USB: serial: option: add support for Telit LE920A4 USB: serial: option: add D-Link DWM-156/A3 USB: serial: fix memleak in driver-registration error path xhci: don't dereference a xhci member after removing xhci usb: xhci: Fix panic if disconnect xhci: always handle "Command Ring Stopped" events usb/gadget: fix gadgetfs aio support. usb: gadget: fsl_qe_udc: off by one in setup_received_handle() USB: validate wMaxPacketValue entries in endpoint descriptors usb: renesas_usbhs: Use dmac only if the pipe type is bulk usb: renesas_usbhs: clear the BRDYSTS in usbhsg_ep_enable() USB: hub: change the locking in hub_activate USB: hub: fix up early-exit pathway in hub_activate usb: hub: Fix unbalanced reference count/memory leak/deadlocks usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices usb: dwc3: gadget: increment request->actual once usb: dwc3: pci: add Intel Kabylake PCI ID usb: misc: usbtest: add fix for driver hang usb: ehci: change order of register cleanup during shutdown crypto: caam - defer aead_set_sh_desc in case of zero authsize crypto: caam - fix echainiv(authenc) encrypt shared descriptor crypto: caam - fix non-hmac hashes genirq/msi: Make sure PCI MSIs are activated early genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP um: Don't discard .text.exit section ACPI / CPPC: Prevent cpc_desc_ptr points to the invalid data ACPI: CPPC: Return error if _CPC is invalid on a CPU mmc: sdhci-acpi: Reduce Baytrail eMMC/SD/SDIO hangs PCI: Limit config space size for Netronome NFP4000 PCI: Add Netronome NFP4000 PF device ID PCI: Limit config space size for Netronome NFP6000 family PCI: Add Netronome vendor and device IDs PCI: Support PCIe devices with short cfg_size NVMe: Don't unmap controller registers on reset ALSA: hda - Manage power well properly for resume libnvdimm, nd_blk: mask off reserved status bits perf intel-pt: Fix occasional decoding errors when tracing system-wide vfio/pci: Fix NULL pointer oops in error interrupt setup handling virtio: fix memory leak in virtqueue_add() parisc: Fix order of EREFUSED define in errno.h arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO ALSA: usb-audio: Add quirk for ELP HD USB Camera ALSA: usb-audio: Add a sample rate quirk for Creative Live! Cam Socialize HD (VF0610) powerpc/eeh: eeh_pci_enable(): fix checking of post-request state SUNRPC: allow for upcalls for same uid but different gss service SUNRPC: Handle EADDRNOTAVAIL on connection failures tools/testing/nvdimm: fix SIGTERM vs hotplug crash uprobes/x86: Fix RIP-relative handling of EVEX-encoded instructions x86/mm: Disable preemption during CR3 read+write hugetlb: fix nr_pmds accounting with shared page tables mm: SLUB hardened usercopy support mm: SLAB hardened usercopy support s390/uaccess: Enable hardened usercopy sparc/uaccess: Enable hardened usercopy powerpc/uaccess: Enable hardened usercopy ia64/uaccess: Enable hardened usercopy arm64/uaccess: Enable hardened usercopy ARM: uaccess: Enable hardened usercopy x86/uaccess: Enable hardened usercopy x86: remove more uaccess_32.h complexity x86: remove pointless uaccess_32.h complexity x86: fix SMAP in 32-bit environments Use the new batched user accesses in generic user string handling Add 'unsafe' user access functions for batched accesses x86: reorganize SMAP handling in user space accesses mm: Hardened usercopy mm: Implement stack frame object validation mm: Add is_migrate_cma_page Linux 4.4.19 Documentation/module-signing.txt: Note need for version info if reusing a key module: Invalidate signatures on force-loaded modules dm flakey: error READ bios during the down_interval rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq() lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt() ACPI / EC: Work around method reentrancy limit in ACPICA for _Qxx x86/platform/intel_mid_pci: Rework IRQ0 workaround PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset MIPS: hpet: Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES MIPS: Don't register r4k sched clock when CPUFREQ enabled MIPS: mm: Fix definition of R6 cache instruction SUNRPC: Don't allocate a full sockaddr_storage for tracing Input: elan_i2c - properly wake up touchpad on ASUS laptops target: Fix ordered task CHECK_CONDITION early exception handling target: Fix max_unmap_lba_count calc overflow target: Fix race between iscsi-target connection shutdown + ABORT_TASK target: Fix missing complete during ABORT_TASK + CMD_T_FABRIC_STOP target: Fix ordered task target_setup_cmd_from_cdb exception hang iscsi-target: Fix panic when adding second TCP connection to iSCSI session ubi: Fix race condition between ubi device creation and udev ubi: Fix early logging ubi: Make volume resize power cut aware of: fix memory leak related to safe_name() IB/mlx4: Fix memory leak if QP creation failed IB/mlx4: Fix error flow when sending mads under SRIOV IB/mlx4: Fix the SQ size of an RC QP IB/IWPM: Fix a potential skb leak IB/IPoIB: Don't update neigh validity for unresolved entries IB/SA: Use correct free function IB/mlx5: Return PORT_ERR in Active to Initializing tranisition IB/mlx5: Fix post send fence logic IB/mlx5: Fix entries check in mlx5_ib_resize_cq IB/mlx5: Fix returned values of query QP IB/mlx5: Fix entries checks in mlx5_ib_create_cq IB/mlx5: Fix MODIFY_QP command input structure ALSA: hda - Fix headset mic detection problem for two dell machines ALSA: hda: add AMD Bonaire AZ PCI ID with proper driver caps ALSA: hda/realtek - Can't adjust speaker's volume on a Dell AIO ALSA: hda: Fix krealloc() with __GFP_ZERO usage mm/hugetlb: avoid soft lockup in set_max_huge_pages() mtd: nand: fix bug writing 1 byte less than page size block: fix bdi vs gendisk lifetime mismatch block: add missing group association in bio-cloning functions metag: Fix __cmpxchg_u32 asm constraint for CMP ftrace/recordmcount: Work around for addition of metag magic but not relocations balloon: check the number of available pages in leak balloon drm/i915/dp: Revert "drm/i915/dp: fall back to 18 bpp when sink capability is unknown" drm/i915: Never fully mask the the EI up rps interrupt on SNB/IVB drm/edid: Add 6 bpc quirk for display AEO model 0. drm: Restore double clflush on the last partial cacheline drm/nouveau/fbcon: fix font width not divisible by 8 drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup drm/nouveau: check for supported chipset before booting fbdev off the hw drm/radeon: support backlight control for UNIPHY3 drm/radeon: fix firmware info version checks drm/radeon: Poll for both connect/disconnect on analog connectors drm/radeon: add a delay after ATPX dGPU power off drm/amdgpu/gmc7: add missing mullins case drm/amdgpu: fix firmware info version checks drm/amdgpu: Disable RPM helpers while reprobing connectors on resume drm/amdgpu: support backlight control for UNIPHY3 drm/amdgpu: Poll for both connect/disconnect on analog connectors drm/amdgpu: add a delay after ATPX dGPU power off w1:omap_hdq: fix regression netlabel: add address family checks to netlbl_{sock,req}_delattr() ARM: dts: sunxi: Add a startup delay for fixed regulator enabled phys audit: fix a double fetch in audit_log_single_execve_arg() iommu/amd: Update Alias-DTE in update_device_table() iommu/amd: Init unity mappings only for dma_ops domains iommu/amd: Handle IOMMU_DOMAIN_DMA in ops->domain_free call-back iommu/vt-d: Return error code in domain_context_mapping_one() iommu/exynos: Suppress unbinding to prevent system failure drm/i915: Don't complain about lack of ACPI video bios nfsd: don't return an unhashed lock stateid after taking mutex nfsd: Fix race between FREE_STATEID and LOCK nfs: don't create zero-length requests MIPS: KVM: Propagate kseg0/mapped tlb fault errors MIPS: KVM: Fix gfn range check in kseg0 tlb faults MIPS: KVM: Add missing gfn range check MIPS: KVM: Fix mapped fault broken commpage handling random: add interrupt callback to VMBus IRQ handler random: print a warning for the first ten uninitialized random users random: initialize the non-blocking pool via add_hwgenerator_randomness() CIFS: Fix a possible invalid memory access in smb2_query_symlink() cifs: fix crash due to race in hmac(md5) handling cifs: Check for existing directory when opening file with O_CREAT fs/cifs: make share unaccessible at root level mountable jbd2: make journal y2038 safe ARC: mm: don't loose PTE_SPECIAL in pte_modify() remoteproc: Fix potential race condition in rproc_add ovl: disallow overlayfs as upperdir HID: uhid: fix timeout when probe races with IO EDAC: Correct channel count limit Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU spi: pxa2xx: Clear all RFT bits in reset_sccr1() on Intel Quark i2c: efm32: fix a failure path in efm32_i2c_probe() s5p-mfc: Add release callback for memory region devs s5p-mfc: Set device name for reserved memory region devs hp-wmi: Fix wifi cannot be hard-unblocked dm: set DMF_SUSPENDED* _before_ clearing DMF_NOFLUSH_SUSPENDING sur40: fix occasional oopses on device close sur40: lower poll interval to fix occasional FPS drops to ~56 FPS Fix RC5 decoding with Fintek CIR chipset vb2: core: Skip planes array verification if pb is NULL videobuf2-v4l2: Verify planes array in buffer dequeueing media: dvb_ringbuffer: Add memory barriers media: usbtv: prevent access to free'd resources mfd: qcom_rpm: Parametrize also ack selector size mfd: qcom_rpm: Fix offset error for msm8660 intel_pstate: Fix MSR_CONFIG_TDP_x addressing in core_get_max_pstate() s390/cio: allow to reset channel measurement block KVM: nVMX: Fix memory corruption when using VMCS shadowing KVM: VMX: handle PML full VMEXIT that occurs during event delivery KVM: MTRR: fix kvm_mtrr_check_gfn_range_consistency page fault KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures arm64: mm: avoid fdt_check_header() before the FDT is fully mapped arm64: dts: rockchip: fixes the gic400 2nd region size for rk3368 pinctrl: cherryview: prevent concurrent access to GPIO controllers Bluetooth: hci_intel: Fix null gpio desc pointer dereference gpio: intel-mid: Remove potentially harmful code gpio: pca953x: Fix NBANK calculation for PCA9536 tty/serial: atmel: fix RS485 half duplex with DMA serial: samsung: Fix ERR pointer dereference on deferred probe tty: serial: msm: Don't read off end of tx fifo arm64: Fix incorrect per-cpu usage for boot CPU arm64: debug: unmask PSTATE.D earlier arm64: kernel: Save and restore UAO and addr_limit on exception entry USB: usbfs: fix potential infoleak in devio usb: renesas_usbhs: fix NULL pointer dereference in xfer_work() USB: serial: option: add support for Telit LE910 PID 0x1206 usb: dwc3: fix for the isoc transfer EP_BUSY flag usb: quirks: Add no-lpm quirk for Elan usb: renesas_usbhs: protect the CFIFOSEL setting in usbhsg_ep_enable() usb: f_fs: off by one bug in _ffs_func_bind() usb: gadget: avoid exposing kernel stack UPSTREAM: usb: gadget: configfs: add mutex lock before unregister gadget ANDROID: dm-verity: adopt changes made to dm callbacks UPSTREAM: ecryptfs: fix handling of directory opening ANDROID: net: core: fix UID-based routing ANDROID: net: fib: remove duplicate assignment FROMLIST: proc: Fix timerslack_ns CAP_SYS_NICE check when adjusting self ANDROID: dm verity fec: pack the fec_header structure ANDROID: dm: android-verity: Verify header before fetching table ANDROID: dm: allow adb disable-verity only in userdebug ANDROID: dm: mount as linear target if eng build ANDROID: dm: use default verity public key ANDROID: dm: fix signature verification flag ANDROID: dm: use name_to_dev_t ANDROID: dm: rename dm-linear methods for dm-android-verity ANDROID: dm: Minor cleanup ANDROID: dm: Mounting root as linear device when verity disabled ANDROID: dm-android-verity: Rebase on top of 4.1 ANDROID: dm: Add android verity target ANDROID: dm: fix dm_substitute_devices() ANDROID: dm: Rebase on top of 4.1 CHROMIUM: dm: boot time specification of dm= Implement memory_state_time, used by qcom,cpubw Revert "panic: Add board ID to panic output" usb: gadget: f_accessory: remove duplicate endpoint alloc BACKPORT: brcmfmac: defer DPC processing during probe FROMLIST: proc: Add LSM hook checks to /proc/<tid>/timerslack_ns FROMLIST: proc: Relax /proc/<tid>/timerslack_ns capability requirements UPSTREAM: ppp: defer netns reference release for ppp channel cpuset: Add allow_attach hook for cpusets on android. UPSTREAM: KEYS: Fix ASN.1 indefinite length object parsing ANDROID: sdcardfs: fix itnull.cocci warnings android-recommended.cfg: enable fstack-protector-strong Linux 4.4.18 mm: memcontrol: fix memcg id ref counter on swap charge move mm: memcontrol: fix swap counter leak on swapout from offline cgroup mm: memcontrol: fix cgroup creation failure after many small jobs ext4: fix reference counting bug on block allocation error ext4: short-cut orphan cleanup on error ext4: validate s_reserved_gdt_blocks on mount ext4: don't call ext4_should_journal_data() on the journal inode ext4: fix deadlock during page writeback ext4: check for extents that wrap around crypto: scatterwalk - Fix test in scatterwalk_done crypto: gcm - Filter out async ghash if necessary fs/dcache.c: avoid soft-lockup in dput() fuse: fix wrong assignment of ->flags in fuse_send_init() fuse: fuse_flush must check mapping->flags for errors fuse: fsync() did not return IO errors sysv, ipc: fix security-layer leaking block: fix use-after-free in seq file x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2) x86/mm/pat: Fix BUG_ON() in mmap_mem() on QEMU/i386 x86/pat: Document the PAT initialization sequence x86/xen, pat: Remove PAT table init code from Xen x86/mtrr: Fix PAT init handling when MTRR is disabled x86/mtrr: Fix Xorg crashes in Qemu sessions x86/mm/pat: Replace cpu_has_pat with boot_cpu_has() x86/mm/pat: Add pat_disable() interface x86/mm/pat: Add support of non-default PAT MSR setting devpts: clean up interface to pty drivers random: strengthen input validation for RNDADDTOENTCNT apparmor: fix ref count leak when profile sha1 hash is read Revert "s390/kdump: Clear subchannel ID to signal non-CCW/SCSI IPL" KEYS: 64-bit MIPS needs to use compat_sys_keyctl for 32-bit userspace arm: oabi compat: add missing access checks cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BAR x86/mm/32: Enable full randomization on i386 and X86_32 HID: sony: do not bail out when the sixaxis refuses the output report PNP: Add Broadwell to Intel MCH size workaround PNP: Add Haswell-ULT to Intel MCH size workaround scsi: ignore errors from scsi_dh_add_device() ipath: Restrict use of the write() interface tcp: consider recv buf for the initial window scale qed: Fix setting/clearing bit in completion bitmap net/irda: fix NULL pointer dereference on memory allocation failure net: bgmac: Fix infinite loop in bgmac_dma_tx_add() bonding: set carrier off for devices created through netlink ipv4: reject RTNH_F_DEAD and RTNH_F_LINKDOWN from user space tcp: enable per-socket rate limiting of all 'challenge acks' tcp: make challenge acks less predictable arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE Linux 4.4.17 vfs: fix deadlock in file_remove_privs() on overlayfs intel_th: Fix a deadlock in modprobing intel_th: pci: Add Kaby Lake PCH-H support net: mvneta: set real interrupt per packet for tx_done libceph: apply new_state before new_up_client on incrementals libata: LITE-ON CX1-JB256-HP needs lower max_sectors i2c: mux: reg: wrong condition checked for of_address_to_resource return value posix_cpu_timer: Exit early when process has been reaped media: fix airspy usb probe error path ipr: Clear interrupt on croc/crocodile when running with LSI SCSI: fix new bug in scsi_dev_info_list string matching RDS: fix rds_tcp_init() error path can: fix oops caused by wrong rtnl dellink usage can: fix handling of unmodifiable configuration options fix can: c_can: Update D_CAN TX and RX functions to 32 bit - fix Altera Cyclone access can: at91_can: RX queue could get stuck at high bus load perf/x86: fix PEBS issues on Intel Atom/Core2 ovl: handle ATTR_KILL* sched/fair: Fix effective_load() to consistently use smoothed load mmc: block: fix packed command header endianness block: fix use-after-free in sys_ioprio_get() qeth: delete napi struct when removing a qeth device platform/chrome: cros_ec_dev - double fetch bug in ioctl clk: rockchip: initialize flags of clk_init_data in mmc-phase clock spi: sun4i: fix FIFO limit spi: sunxi: fix transfer timeout namespace: update event counter when umounting a deleted dentry 9p: use file_dentry() ext4: verify extent header depth ecryptfs: don't allow mmap when the lower fs doesn't support it Revert "ecryptfs: forbid opening files without mmap handler" locks: use file_inode() power_supply: power_supply_read_temp only if use_cnt > 0 cgroup: set css->id to -1 during init pinctrl: imx: Do not treat a PIN without MUX register as an error pinctrl: single: Fix missing flush of posted write for a wakeirq pvclock: Add CPU barriers to get correct version value Input: tsc200x - report proper input_dev name Input: xpad - validate USB endpoint count during probe Input: wacom_w8001 - w8001_MAX_LENGTH should be 13 Input: xpad - fix oops when attaching an unknown Xbox One gamepad Input: elantech - add more IC body types to the list Input: vmmouse - remove port reservation ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt ALSA: timer: Fix leak in events via snd_timer_user_ccallback ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS xenbus: don't bail early from xenbus_dev_request_and_reply() xenbus: don't BUG() on user mode induced condition xen/pciback: Fix conf_space read/write overlap check. ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame) arc: unwind: warn only once if DW2_UNWIND is disabled kernel/sysrq, watchdog, sched/core: Reset watchdog on all CPUs while processing sysrq-w pps: do not crash when failed to register vmlinux.lds: account for destructor sections mm, meminit: ensure node is online before checking whether pages are uninitialised mm, meminit: always return a valid node from early_pfn_to_nid mm, compaction: prevent VM_BUG_ON when terminating freeing scanner fs/nilfs2: fix potential underflow in call to crc32_le mm, compaction: abort free scanner if split fails mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask dmaengine: at_xdmac: double FIFO flush needed to compute residue dmaengine: at_xdmac: fix residue corruption dmaengine: at_xdmac: align descriptors on 64 bits x86/quirks: Add early quirk to reset Apple AirPort card x86/quirks: Reintroduce scanning of secondary buses x86/quirks: Apply nvidia_bugs quirk only on root bus USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails Conflicts: arch/arm/kernel/topology.c arch/arm64/include/asm/arch_gicv3.h arch/arm64/kernel/topology.c block/bio.c drivers/cpufreq/Kconfig drivers/md/Makefile drivers/media/dvb-core/dvb_ringbuffer.c drivers/media/tuners/tuner-xc2028.c drivers/misc/Kconfig drivers/misc/Makefile drivers/mmc/core/host.c drivers/scsi/ufs/ufshcd.c drivers/scsi/ufs/ufshcd.h drivers/usb/dwc3/gadget.c drivers/usb/gadget/configfs.c fs/ecryptfs/file.c include/linux/mmc/core.h include/linux/mmc/host.h include/linux/mmzone.h include/linux/sched.h include/linux/sched/sysctl.h include/trace/events/power.h include/trace/events/sched.h init/Kconfig kernel/cpuset.c kernel/exit.c kernel/sched/Makefile kernel/sched/core.c kernel/sched/cputime.c kernel/sched/fair.c kernel/sched/features.h kernel/sched/rt.c kernel/sched/sched.h kernel/sched/stop_task.c kernel/sched/tune.c lib/Kconfig.debug mm/Makefile mm/vmstat.c Change-Id: I243a43231ca56a6362076fa6301827e1b0493be5 Signed-off-by: Runmin Wang <runminw@codeaurora.org>
2016-10-28ipc/sem.c: fix complex_count vs. simple op raceManfred Spraul
commit 5864a2fd3088db73d47942370d0f7210a807b9bc upstream. Commit 6d07b68ce16a ("ipc/sem.c: optimize sem_lock()") introduced a race: sem_lock has a fast path that allows parallel simple operations. There are two reasons why a simple operation cannot run in parallel: - a non-simple operations is ongoing (sma->sem_perm.lock held) - a complex operation is sleeping (sma->complex_count != 0) As both facts are stored independently, a thread can bypass the current checks by sleeping in the right positions. See below for more details (or kernel bugzilla 105651). The patch fixes that by creating one variable (complex_mode) that tracks both reasons why parallel operations are not possible. The patch also updates stale documentation regarding the locking. With regards to stable kernels: The patch is required for all kernels that include the commit 6d07b68ce16a ("ipc/sem.c: optimize sem_lock()") (3.10?) The alternative is to revert the patch that introduced the race. The patch is safe for backporting, i.e. it makes no assumptions about memory barriers in spin_unlock_wait(). Background: Here is the race of the current implementation: Thread A: (simple op) - does the first "sma->complex_count == 0" test Thread B: (complex op) - does sem_lock(): This includes an array scan. But the scan can't find Thread A, because Thread A does not own sem->lock yet. - the thread does the operation, increases complex_count, drops sem_lock, sleeps Thread A: - spin_lock(&sem->lock), spin_is_locked(sma->sem_perm.lock) - sleeps before the complex_count test Thread C: (complex op) - does sem_lock (no array scan, complex_count==1) - wakes up Thread B. - decrements complex_count Thread A: - does the complex_count test Bug: Now both thread A and thread C operate on the same array, without any synchronization. Fixes: 6d07b68ce16a ("ipc/sem.c: optimize sem_lock()") Link: http://lkml.kernel.org/r/1469123695-5661-1-git-send-email-manfred@colorfullife.com Reported-by: <felixh@informatik.uni-bremen.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: <1vier1@web.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-16sysv, ipc: fix security-layer leakingFabian Frederick
commit 9b24fef9f0410fb5364245d6cc2bd044cc064007 upstream. Commit 53dad6d3a8e5 ("ipc: fix race with LSMs") updated ipc_rcu_putref() to receive rcu freeing function but used generic ipc_rcu_free() instead of msg_rcu_free() which does security cleaning. Running LTP msgsnd06 with kmemleak gives the following: cat /sys/kernel/debug/kmemleak unreferenced object 0xffff88003c0a11f8 (size 8): comm "msgsnd06", pid 1645, jiffies 4294672526 (age 6.549s) hex dump (first 8 bytes): 1b 00 00 00 01 00 00 00 ........ backtrace: kmemleak_alloc+0x23/0x40 kmem_cache_alloc_trace+0xe1/0x180 selinux_msg_queue_alloc_security+0x3f/0xd0 security_msg_queue_alloc+0x2e/0x40 newque+0x4e/0x150 ipcget+0x159/0x1b0 SyS_msgget+0x39/0x40 entry_SYSCALL_64_fastpath+0x13/0x8f Manfred Spraul suggested to fix sem.c as well and Davidlohr Bueso to only use ipc_rcu_free in case of security allocation failure in newary() Fixes: 53dad6d3a8e ("ipc: fix race with LSMs") Link: http://lkml.kernel.org/r/1470083552-22966-1-git-send-email-fabf@skynet.be Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-23net: initialize variables to avoid UML compilation failureJeevan Shriram
While compiling for usermode linux for x86 architecture, observed compilation issues with probable usage of uninitialized variables. This change initializes the variables. Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
2016-02-25ipc/shm: handle removed segments gracefully in shm_mmap()Kirill A. Shutemov
commit 1ac0b6dec656f3f78d1c3dd216fad84cb4d0a01e upstream. remap_file_pages(2) emulation can reach file which represents removed IPC ID as long as a memory segment is mapped. It breaks expectations of IPC subsystem. Test case (rewritten to be more human readable, originally autogenerated by syzkaller[1]): #define _GNU_SOURCE #include <stdlib.h> #include <sys/ipc.h> #include <sys/mman.h> #include <sys/shm.h> #define PAGE_SIZE 4096 int main() { int id; void *p; id = shmget(IPC_PRIVATE, 3 * PAGE_SIZE, 0); p = shmat(id, NULL, 0); shmctl(id, IPC_RMID, NULL); remap_file_pages(p, 3 * PAGE_SIZE, 0, 7, 0); return 0; } The patch changes shm_mmap() and code around shm_lock() to propagate locking error back to caller of shm_mmap(). [1] http://github.com/google/syzkaller Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-06ipc,msg: drop dst nil validation in copy_msgDavidlohr Bueso
d0edd8528362 ("ipc: convert invalid scenarios to use WARN_ON") relaxed the nil dst parameter check, originally being a full BUG_ON. However, this check seems quite unnecessary when the only purpose is for ceckpoint/restore (MSG_COPY flag): o The copy variable is set initially to nil, apparently as a way of ensuring that prepare_copy is previously called. Which is in fact done, unconditionally at the beginning of do_msgrcv. o There is no concurrency with 'copy' (stack allocated in do_msgrcv). Furthermore, any errors in 'copy' (and thus prepare_copy/copy_msg) should always handled by IS_ERR() family. Therefore remove this check altogether as it can never occur with the current users. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-30Initialize msg/shm IPC objects before doing ipc_addid()Linus Torvalds
As reported by Dmitry Vyukov, we really shouldn't do ipc_addid() before having initialized the IPC object state. Yes, we initialize the IPC object in a locked state, but with all the lockless RCU lookup work, that IPC object lock no longer means that the state cannot be seen. We already did this for the IPC semaphore code (see commit e8577d1f0329: "ipc/sem.c: fully initialize sem_array before making it visible") but we clearly forgot about msg and shm. Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10ipc: convert invalid scenarios to use WARN_ONDavidlohr Bueso
Considering Linus' past rants about the (ab)use of BUG in the kernel, I took a look at how we deal with such calls in ipc. Given that any errors or corruption in ipc code are most likely contained within the set of processes participating in the broken mechanisms, there aren't really many strong fatal system failure scenarios that would require a BUG call. Also, if something is seriously wrong, ipc might not be the place for such a BUG either. 1. For example, recently, a customer hit one of these BUG_ONs in shm after failing shm_lock(). A busted ID imho does not merit a BUG_ON, and WARN would have been better. 2. MSG_COPY functionality of posix msgrcv(2) for checkpoint/restore. I don't see how we can hit this anyway -- at least it should be IS_ERR. The 'copy' arg from do_msgrcv is always set by calling prepare_copy() first and foremost. We could also probably drop this check altogether. Either way, it does not merit a BUG_ON. 3. No ->fault() callback for the fs getting the corresponding page -- seems selfish to make the system unusable. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-14ipc/sem.c: update/correct memory barriersManfred Spraul
sem_lock() did not properly pair memory barriers: !spin_is_locked() and spin_unlock_wait() are both only control barriers. The code needs an acquire barrier, otherwise the cpu might perform read operations before the lock test. As no primitive exists inside <include/spinlock.h> and since it seems noone wants another primitive, the code creates a local primitive within ipc/sem.c. With regards to -stable: The change of sem_wait_array() is a bugfix, the change to sem_lock() is a nop (just a preprocessor redefinition to improve the readability). The bugfix is necessary for all kernels that use sem_wait_array() (i.e.: starting from 3.10). Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Reported-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Kirill Tkhai <ktkhai@parallels.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: <stable@vger.kernel.org> [3.10+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-14ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()Herton R. Krzesinski
After we acquire the sma->sem_perm lock in exit_sem(), we are protected against a racing IPC_RMID operation. Also at that point, we are the last user of sem_undo_list. Therefore it isn't required that we acquire or use ulp->lock. Signed-off-by: Herton R. Krzesinski <herton@redhat.com> Acked-by: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Rafael Aquini <aquini@redhat.com> CC: Aristeu Rozanski <aris@redhat.com> Cc: David Jeffery <djeffery@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-14ipc,sem: fix use after free on IPC_RMID after a task using same semaphore ↵Herton R. Krzesinski
set exits The current semaphore code allows a potential use after free: in exit_sem we may free the task's sem_undo_list while there is still another task looping through the same semaphore set and cleaning the sem_undo list at freeary function (the task called IPC_RMID for the same semaphore set). For example, with a test program [1] running which keeps forking a lot of processes (which then do a semop call with SEM_UNDO flag), and with the parent right after removing the semaphore set with IPC_RMID, and a kernel built with CONFIG_SLAB, CONFIG_SLAB_DEBUG and CONFIG_DEBUG_SPINLOCK, you can easily see something like the following in the kernel log: Slab corruption (Not tainted): kmalloc-64 start=ffff88003b45c1c0, len=64 000: 6b 6b 6b 6b 6b 6b 6b 6b 00 6b 6b 6b 6b 6b 6b 6b kkkkkkkk.kkkkkkk 010: ff ff ff ff 6b 6b 6b 6b ff ff ff ff ff ff ff ff ....kkkk........ Prev obj: start=ffff88003b45c180, len=64 000: 00 00 00 00 ad 4e ad de ff ff ff ff 5a 5a 5a 5a .....N......ZZZZ 010: ff ff ff ff ff ff ff ff c0 fb 01 37 00 88 ff ff ...........7.... Next obj: start=ffff88003b45c200, len=64 000: 00 00 00 00 ad 4e ad de ff ff ff ff 5a 5a 5a 5a .....N......ZZZZ 010: ff ff ff ff ff ff ff ff 68 29 a7 3c 00 88 ff ff ........h).<.... BUG: spinlock wrong CPU on CPU#2, test/18028 general protection fault: 0000 [#1] SMP Modules linked in: 8021q mrp garp stp llc nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables binfmt_misc ppdev input_leds joydev parport_pc parport floppy serio_raw virtio_balloon virtio_rng virtio_console virtio_net iosf_mbi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcspkr qxl ttm drm_kms_helper drm snd_hda_codec_generic i2c_piix4 snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd soundcore crc32c_intel virtio_pci virtio_ring virtio pata_acpi ata_generic [last unloaded: speedstep_lib] CPU: 2 PID: 18028 Comm: test Not tainted 4.2.0-rc5+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 RIP: spin_dump+0x53/0xc0 Call Trace: spin_bug+0x30/0x40 do_raw_spin_unlock+0x71/0xa0 _raw_spin_unlock+0xe/0x10 freeary+0x82/0x2a0 ? _raw_spin_lock+0xe/0x10 semctl_down.clone.0+0xce/0x160 ? __do_page_fault+0x19a/0x430 ? __audit_syscall_entry+0xa8/0x100 SyS_semctl+0x236/0x2c0 ? syscall_trace_leave+0xde/0x130 entry_SYSCALL_64_fastpath+0x12/0x71 Code: 8b 80 88 03 00 00 48 8d 88 60 05 00 00 48 c7 c7 a0 2c a4 81 31 c0 65 8b 15 eb 40 f3 7e e8 08 31 68 00 4d 85 e4 44 8b 4b 08 74 5e <45> 8b 84 24 88 03 00 00 49 8d 8c 24 60 05 00 00 8b 53 04 48 89 RIP [<ffffffff810d6053>] spin_dump+0x53/0xc0 RSP <ffff88003750fd68> ---[ end trace 783ebb76612867a0 ]--- NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [test:18053] Modules linked in: 8021q mrp garp stp llc nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables binfmt_misc ppdev input_leds joydev parport_pc parport floppy serio_raw virtio_balloon virtio_rng virtio_console virtio_net iosf_mbi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcspkr qxl ttm drm_kms_helper drm snd_hda_codec_generic i2c_piix4 snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd soundcore crc32c_intel virtio_pci virtio_ring virtio pata_acpi ata_generic [last unloaded: speedstep_lib] CPU: 3 PID: 18053 Comm: test Tainted: G D 4.2.0-rc5+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 RIP: native_read_tsc+0x0/0x20 Call Trace: ? delay_tsc+0x40/0x70 __delay+0xf/0x20 do_raw_spin_lock+0x96/0x140 _raw_spin_lock+0xe/0x10 sem_lock_and_putref+0x11/0x70 SYSC_semtimedop+0x7bf/0x960 ? handle_mm_fault+0xbf6/0x1880 ? dequeue_task_fair+0x79/0x4a0 ? __do_page_fault+0x19a/0x430 ? kfree_debugcheck+0x16/0x40 ? __do_page_fault+0x19a/0x430 ? __audit_syscall_entry+0xa8/0x100 ? do_audit_syscall_entry+0x66/0x70 ? syscall_trace_enter_phase1+0x139/0x160 SyS_semtimedop+0xe/0x10 SyS_semop+0x10/0x20 entry_SYSCALL_64_fastpath+0x12/0x71 Code: 47 10 83 e8 01 85 c0 89 47 10 75 08 65 48 89 3d 1f 74 ff 7e c9 c3 0f 1f 44 00 00 55 48 89 e5 e8 87 17 04 00 66 90 c9 c3 0f 1f 00 <55> 48 89 e5 0f 31 89 c1 48 89 d0 48 c1 e0 20 89 c9 48 09 c8 c9 Kernel panic - not syncing: softlockup: hung tasks I wasn't able to trigger any badness on a recent kernel without the proper config debugs enabled, however I have softlockup reports on some kernel versions, in the semaphore code, which are similar as above (the scenario is seen on some servers running IBM DB2 which uses semaphore syscalls). The patch here fixes the race against freeary, by acquiring or waiting on the sem_undo_list lock as necessary (exit_sem can race with freeary, while freeary sets un->semid to -1 and removes the same sem_undo from list_proc or when it removes the last sem_undo). After the patch I'm unable to reproduce the problem using the test case [1]. [1] Test case used below: #include <stdio.h> #include <sys/types.h> #include <sys/ipc.h> #include <sys/sem.h> #include <sys/wait.h> #include <stdlib.h> #include <time.h> #include <unistd.h> #include <errno.h> #define NSEM 1 #define NSET 5 int sid[NSET]; void thread() { struct sembuf op; int s; uid_t pid = getuid(); s = rand() % NSET; op.sem_num = pid % NSEM; op.sem_op = 1; op.sem_flg = SEM_UNDO; semop(sid[s], &op, 1); exit(EXIT_SUCCESS); } void create_set() { int i, j; pid_t p; union { int val; struct semid_ds *buf; unsigned short int *array; struct seminfo *__buf; } un; /* Create and initialize semaphore set */ for (i = 0; i < NSET; i++) { sid[i] = semget(IPC_PRIVATE , NSEM, 0644 | IPC_CREAT); if (sid[i] < 0) { perror("semget"); exit(EXIT_FAILURE); } } un.val = 0; for (i = 0; i < NSET; i++) { for (j = 0; j < NSEM; j++) { if (semctl(sid[i], j, SETVAL, un) < 0) perror("semctl"); } } /* Launch threads that operate on semaphore set */ for (i = 0; i < NSEM * NSET * NSET; i++) { p = fork(); if (p < 0) perror("fork"); if (p == 0) thread(); } /* Free semaphore set */ for (i = 0; i < NSET; i++) { if (semctl(sid[i], NSEM, IPC_RMID)) perror("IPC_RMID"); } /* Wait for forked processes to exit */ while (wait(NULL)) { if (errno == ECHILD) break; }; } int main(int argc, char **argv) { pid_t p; srand(time(NULL)); while (1) { p = fork(); if (p < 0) { perror("fork"); exit(EXIT_FAILURE); } if (p == 0) { create_set(); goto end; } /* Wait for forked processes to exit */ while (wait(NULL)) { if (errno == ECHILD) break; }; } end: return 0; } [akpm@linux-foundation.org: use normal comment layout] Signed-off-by: Herton R. Krzesinski <herton@redhat.com> Acked-by: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Rafael Aquini <aquini@redhat.com> CC: Aristeu Rozanski <aris@redhat.com> Cc: David Jeffery <djeffery@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-07ipc: use private shmem or hugetlbfs inodes for shm segments.Stephen Smalley
The shm implementation internally uses shmem or hugetlbfs inodes for shm segments. As these inodes are never directly exposed to userspace and only accessed through the shm operations which are already hooked by security modules, mark the inodes with the S_PRIVATE flag so that inode security initialization and permission checking is skipped. This was motivated by the following lockdep warning: ====================================================== [ INFO: possible circular locking dependency detected ] 4.2.0-0.rc3.git0.1.fc24.x86_64+debug #1 Tainted: G W ------------------------------------------------------- httpd/1597 is trying to acquire lock: (&ids->rwsem){+++++.}, at: shm_close+0x34/0x130 but task is already holding lock: (&mm->mmap_sem){++++++}, at: SyS_shmdt+0x4b/0x180 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&mm->mmap_sem){++++++}: lock_acquire+0xc7/0x270 __might_fault+0x7a/0xa0 filldir+0x9e/0x130 xfs_dir2_block_getdents.isra.12+0x198/0x1c0 [xfs] xfs_readdir+0x1b4/0x330 [xfs] xfs_file_readdir+0x2b/0x30 [xfs] iterate_dir+0x97/0x130 SyS_getdents+0x91/0x120 entry_SYSCALL_64_fastpath+0x12/0x76 -> #2 (&xfs_dir_ilock_class){++++.+}: lock_acquire+0xc7/0x270 down_read_nested+0x57/0xa0 xfs_ilock+0x167/0x350 [xfs] xfs_ilock_attr_map_shared+0x38/0x50 [xfs] xfs_attr_get+0xbd/0x190 [xfs] xfs_xattr_get+0x3d/0x70 [xfs] generic_getxattr+0x4f/0x70 inode_doinit_with_dentry+0x162/0x670 sb_finish_set_opts+0xd9/0x230 selinux_set_mnt_opts+0x35c/0x660 superblock_doinit+0x77/0xf0 delayed_superblock_init+0x10/0x20 iterate_supers+0xb3/0x110 selinux_complete_init+0x2f/0x40 security_load_policy+0x103/0x600 sel_write_load+0xc1/0x750 __vfs_write+0x37/0x100 vfs_write+0xa9/0x1a0 SyS_write+0x58/0xd0 entry_SYSCALL_64_fastpath+0x12/0x76 ... Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Reported-by: Morten Stevens <mstevens@fedoraproject.org> Acked-by: Hugh Dickins <hughd@google.com> Acked-by: Paul Moore <paul@paul-moore.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Eric Paris <eparis@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-07ipc: modify message queue accounting to not take kernel data structures into ↵Marcus Gelderie
account A while back, the message queue implementation in the kernel was improved to use btrees to speed up retrieval of messages, in commit d6629859b36d ("ipc/mqueue: improve performance of send/recv"). That patch introducing the improved kernel handling of message queues (using btrees) has, as a by-product, changed the meaning of the QSIZE field in the pseudo-file created for the queue. Before, this field reflected the size of the user-data in the queue. Since, it also takes kernel data structures into account. For example, if 13 bytes of user data are in the queue, on my machine the file reports a size of 61 bytes. There was some discussion on this topic before (for example https://lkml.org/lkml/2014/10/1/115). Commenting on a th lkml, Michael Kerrisk gave the following background (https://lkml.org/lkml/2015/6/16/74): The pseudofiles in the mqueue filesystem (usually mounted at /dev/mqueue) expose fields with metadata describing a message queue. One of these fields, QSIZE, as originally implemented, showed the total number of bytes of user data in all messages in the message queue, and this feature was documented from the beginning in the mq_overview(7) page. In 3.5, some other (useful) work happened to break the user-space API in a couple of places, including the value exposed via QSIZE, which now includes a measure of kernel overhead bytes for the queue, a figure that renders QSIZE useless for its original purpose, since there's no way to deduce the number of overhead bytes consumed by the implementation. (The other user-space breakage was subsequently fixed.) This patch removes the accounting of kernel data structures in the queue. Reporting the size of these data-structures in the QSIZE field was a breaking change (see Michael's comment above). Without the QSIZE field reporting the total size of user-data in the queue, there is no way to deduce this number. It should be noted that the resource limit RLIMIT_MSGQUEUE is counted against the worst-case size of the queue (in both the old and the new implementation). Therefore, the kernel overhead accounting in QSIZE is not necessary to help the user understand the limitations RLIMIT imposes on the processes. Signed-off-by: Marcus Gelderie <redmnic@gmail.com> Acked-by: Doug Ledford <dledford@redhat.com> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Davidlohr Bueso <dbueso@suse.de> Cc: David Howells <dhowells@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: John Duffy <jb_duffy@btinternet.com> Cc: Arto Bendiken <arto@bendiken.net> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30ipc,sysv: return -EINVAL upon incorrect id/seqnumDavidlohr Bueso
In ipc_obtain_object_check we return -EIDRM when a bogus sequence number is detected via ipc_checkid, while the ipc manpages state the following return codes for such errors: EIDRM <ID> points to a removed identifier. EINVAL Invalid <ID> value, or unaligned, etc. EIDRM should only be returned upon a RMID call (->deleted check), and thus return EINVAL for wrong seq. This difference in semantics has also caused real bugs, ie: https://bugzilla.redhat.com/show_bug.cgi?id=246509 Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30ipc,sysv: make return -EIDRM when racing with RMID consistentDavidlohr Bueso
The ipc_lock helper is used by all forms of sysv ipc to acquire the ipc object's spinlock. Upon error (bogus identifier), we always return -EINVAL, whether the problem be in the idr path or because we raced with a task performing RMID. For the later, however, all ipc related manpages, state the that for: EIDRM <ID> points to a removed identifier. And return: EINVAL Invalid <ID> value, or unaligned, etc. Which (EINVAL) should only return once the ipc resource is deleted. For all types of ipc this is done immediately upon a RMID command. However, shared memory behaves slightly different as it can merely mark a segment for deletion, and delay the actual freeing until there are no more active consumers. Per shmctl(IPC_RMID) manpage: "" Mark the segment to be destroyed. The segment will only actually be destroyed after the last process detaches it (i.e., when the shm_nattch member of the associated structure shmid_ds is zero). "" Unlike ipc_lock, paths that behave "correctly", at least per the manpage, involve controlling the ipc resource via *ctl(), doing the exact same validity check as ipc_lock after right acquiring the spinlock: if (!ipc_valid_object()) { err = -EIDRM; goto out_unlock; } Thus make ipc_lock consistent with the rest of ipc code and return -EIDRM in ipc_lock when !ipc_valid_object(). Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30ipc: rename ipc_obtain_objectDavidlohr Bueso
... to ipc_obtain_object_idr, which is more meaningful and makes the code slightly easier to follow. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30ipc,msg: provide barrier pairings for lockless receiveDavidlohr Bueso
We currently use a full barrier on the sender side to to avoid receiver tasks disappearing on us while still performing on the sender side wakeup. We lack however, the proper CPU-CPU interactions pairing on the receiver side which busy-waits for the message. Similarly, we do not need a full smp_mb, and can relax the semantics for the writer and reader sides of the message. This is safe as we are only ordering loads and stores to r_msg. And in both smp_wmb and smp_rmb, there are no stores after the calls _anyway_. This obviously applies for pipelined_send and expunge_all, for EIRDM when destroying a queue. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30ipc,shm: move BUG_ON check into shm_lockDavidlohr Bueso
Upon every shm_lock call, we BUG_ON if an error was returned, indicating racing either in idr or in shm_destroy. Move this logic into the locking. [akpm@linux-foundation.org: simplify code] Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30ipc/util.c: use kvfree() in ipc_rcu_free()Pekka Enberg
Use kvfree() instead of open-coding it. Signed-off-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-08ipc/mqueue: Implement lockless pipelined wakeupsDavidlohr Bueso
This patch moves the wakeup_process() invocation so it is not done under the info->lock by making use of a lockless wake_q. With this change, the waiter is woken up once it is STATE_READY and it does not need to loop on SMP if it is still in STATE_PENDING. In the timeout case we still need to grab the info->lock to verify the state. This change should also avoid the introduction of preempt_disable() in -rt which avoids a busy-loop which pools for the STATE_PENDING -> STATE_READY change if the waiter has a higher priority compared to the waker. Additionally, this patch micro-optimizes wq_sleep by using the cheaper cousin of set_current_state(TASK_INTERRUPTABLE) as we will block no matter what, thus get rid of the implied barrier. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: George Spelvin <linux@horizon.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris Mason <clm@fb.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: dave@stgolabs.net Link: http://lkml.kernel.org/r/1430748166.1940.17.camel@stgolabs.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull fourth vfs update from Al Viro: "d_inode() annotations from David Howells (sat in for-next since before the beginning of merge window) + four assorted fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: RCU pathwalk breakage when running into a symlink overmounting something fix I_DIO_WAKEUP definition direct-io: only inc/dec inode->i_dio_count for file systems fs/9p: fix readdir() VFS: assorted d_backing_inode() annotations VFS: fs/inode.c helpers: d_inode() annotations VFS: fs/cachefiles: d_backing_inode() annotations VFS: fs library helpers: d_inode() annotations VFS: assorted weird filesystems: d_inode() annotations VFS: normal filesystems (and lustre): d_inode() annotations VFS: security/: d_inode() annotations VFS: security/: d_backing_inode() annotations VFS: net/: d_inode() annotations VFS: net/unix: d_backing_inode() annotations VFS: kernel/: d_inode() annotations VFS: audit: d_backing_inode() annotations VFS: Fix up some ->d_inode accesses in the chelsio driver VFS: Cachefiles should perform fs modifications on the top layer only VFS: AF_UNIX sockets should call mknod on the top layer only
2015-04-15ipc: remove use of seq_printf return valueJoe Perches
The seq_printf return value, because it's frequently misused, will eventually be converted to void. See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to seq_has_overflowed() and make public") Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-15VFS: assorted weird filesystems: d_inode() annotationsDavid Howells
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-17ipc,sem: use current->state helpersDavidlohr Bueso
Call __set_current_state() instead of assigning the new state directly. These interfaces also aid CONFIG_DEBUG_ATOMIC_SLEEP environments, keeping track of who changed the state. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile #2 from Al Viro: "Next pile (and there'll be one or two more). The large piece in this one is getting rid of /proc/*/ns/* weirdness; among other things, it allows to (finally) make nameidata completely opaque outside of fs/namei.c, making for easier further cleanups in there" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: coda_venus_readdir(): use file_inode() fs/namei.c: fold link_path_walk() call into path_init() path_init(): don't bother with LOOKUP_PARENT in argument fs/namei.c: new helper (path_cleanup()) path_init(): store the "base" pointer to file in nameidata itself make default ->i_fop have ->open() fail with ENXIO make nameidata completely opaque outside of fs/namei.c kill proc_ns completely take the targets of /proc/*/ns/* symlinks to separate fs bury struct proc_ns in fs/proc copy address of proc_ns_ops into ns_common new helpers: ns_alloc_inum/ns_free_inum make proc_ns_operations work with struct ns_common * instead of void * switch the rest of proc_ns_operations to working with &...->ns netns: switch ->get()/->put()/->install()/->inum() to working with &net->ns make mntns ->get()/->put()/->install()/->inum() work with &mnt_ns->ns common object embedded into various struct ....ns
2014-12-13shmdt: use i_size_read() instead of ->i_sizeDave Hansen
Andrew Morton noted http://lkml.kernel.org/r/20141104142027.a7a0d010772d84560b445f59@linux-foundation.org that the shmdt uses inode->i_size outside of i_mutex being held. There is one more case in shm.c in shm_destroy(). This converts both users over to use i_size_read(). Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-13ipc/shm.c: fix overly aggressive shmdt() when calls span multiple segmentsDave Hansen
This is a highly-contrived scenario. But, a single shmdt() call can be induced in to unmapping memory from mulitple shm segments. Example code is here: http://www.sr71.net/~dave/intel/shmfun.c The fix is pretty simple: Record the 'struct file' for the first VMA we encounter and then stick to it. Decline to unmap anything not from the same file and thus the same segment. I found this by inspection and the odds of anyone hitting this in practice are pretty darn small. Lightly tested, but it's a pretty small patch. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Manfred Spraul <manfred@colorfullife.com> Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-13ipc/msg: increase MSGMNI, remove scalingManfred Spraul
SysV can be abused to allocate locked kernel memory. For most systems, a small limit doesn't make sense, see the discussion with regards to SHMMAX. Therefore: increase MSGMNI to the maximum supported. And: If we ignore the risk of locking too much memory, then an automatic scaling of MSGMNI doesn't make sense. Therefore the logic can be removed. The code preserves auto_msgmni to avoid breaking any user space applications that expect that the value exists. Notes: 1) If an administrator must limit the memory allocations, then he can set MSGMNI as necessary. Or he can disable sysv entirely (as e.g. done by Android). 2) MSGMAX and MSGMNB are intentionally not increased, as these values are used to control latency vs. throughput: If MSGMNB is large, then msgsnd() just returns and more messages can be queued before a task switch to a task that calls msgrcv() is forced. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Rafael Aquini <aquini@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-13ipc/sem.c: change memory barrier in sem_lock() to smp_rmb()Manfred Spraul
When I fixed bugs in the sem_lock() logic, I was more conservative than necessary. Therefore it is safe to replace the smp_mb() with smp_rmb(). And: With smp_rmb(), semop() syscalls are up to 10% faster. The race we must protect against is: sem->lock is free sma->complex_count = 0 sma->sem_perm.lock held by thread B thread A: A: spin_lock(&sem->lock) B: sma->complex_count++; (now 1) B: spin_unlock(&sma->sem_perm.lock); A: spin_is_locked(&sma->sem_perm.lock); A: XXXXX memory barrier A: if (sma->complex_count == 0) Thread A must read the increased complex_count value, i.e. the read must not be reordered with the read of sem_perm.lock done by spin_is_locked(). Since it's about ordering of reads, smp_rmb() is sufficient. [akpm@linux-foundation.org: update sem_lock() comment, from Davidlohr] Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Acked-by: Rafael Aquini <aquini@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-10Merge branch 'nsfs' into for-nextAl Viro
2014-12-10Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS changes from Al Viro: "First pile out of several (there _definitely_ will be more). Stuff in this one: - unification of d_splice_alias()/d_materialize_unique() - iov_iter rewrite - killing a bunch of ->f_path.dentry users (and f_dentry macro). Getting that completed will make life much simpler for unionmount/overlayfs, since then we'll be able to limit the places sensitive to file _dentry_ to reasonably few. Which allows to have file_inode(file) pointing to inode in a covered layer, with dentry pointing to (negative) dentry in union one. Still not complete, but much closer now. - crapectomy in lustre (dead code removal, mostly) - "let's make seq_printf return nothing" preparations - assorted cleanups and fixes There _definitely_ will be more piles" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) copy_from_iter_nocache() new helper: iov_iter_kvec() csum_and_copy_..._iter() iov_iter.c: handle ITER_KVEC directly iov_iter.c: convert copy_to_iter() to iterate_and_advance iov_iter.c: convert copy_from_iter() to iterate_and_advance iov_iter.c: get rid of bvec_copy_page_{to,from}_iter() iov_iter.c: convert iov_iter_zero() to iterate_and_advance iov_iter.c: convert iov_iter_get_pages_alloc() to iterate_all_kinds iov_iter.c: convert iov_iter_get_pages() to iterate_all_kinds iov_iter.c: convert iov_iter_npages() to iterate_all_kinds iov_iter.c: iterate_and_advance iov_iter.c: macros for iterating over iov_iter kill f_dentry macro dcache: fix kmemcheck warning in switch_names new helper: audit_file() nfsd_vfs_write(): use file_inode() ncpfs: use file_inode() kill f_dentry uses lockd: get rid of ->f_path.dentry->d_sb ...
2014-12-04copy address of proc_ns_ops into ns_commonAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-04new helpers: ns_alloc_inum/ns_free_inumAl Viro
take struct ns_common *, for now simply wrappers around proc_{alloc,free}_inum() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-04make proc_ns_operations work with struct ns_common * instead of void *Al Viro
We can do that now. And kill ->inum(), while we are at it - all instances are identical. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-04switch the rest of proc_ns_operations to working with &...->nsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-04common object embedded into various struct ....nsAl Viro
for now - just move corresponding ->proc_inum instances over there Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-03ipc/sem.c: fully initialize sem_array before making it visibleManfred Spraul
ipc_addid() makes a new ipc identifier visible to everyone. New objects start as locked, so that the caller can complete the initialization after the call. Within struct sem_array, at least sma->sem_base and sma->sem_nsems are accessed without any locks, therefore this approach doesn't work. Thus: Move the ipc_addid() to the end of the initialization. Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Reported-by: Rik van Riel <riel@redhat.com> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Acked-by: Rafael Aquini <aquini@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-11-19new helper: audit_file()Al Viro
... for situations when we don't have any candidate in pathnames - basically, in descriptor-based syscalls. [Folded the build fix for !CONFIG_AUDITSYSCALL configs from Chen Gang] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-14ipc: resolve shadow warningsMark Rustad
Resolve some shadow warnings produced in W=2 builds by changing the name of some parameters and local variables. Change instances of "s64" because that clashes with the well-known typedef. Also change a local variable with the name "up" because that clashes with the name of of the "up" function for semaphores. These are hazards so eliminate the hazards by renaming them. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14ipc/util.c: use __seq_open_private() instead of seq_open()Rob Jones
Using __seq_open_private() removes boilerplate code from sysvipc_proc_open(). The resultant code is shorter and easier to follow. However, please note that __seq_open_private() call kzalloc() rather than kmalloc() which may affect timing due to the memory initialisation overhead. Signed-off-by: Rob Jones <rob.jones@codethink.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14ipc/shm: kill the historical/wrong mm->start_stack checkOleg Nesterov
do_shmat() is the only user of ->start_stack (proc just reports its value), and this check looks ugly and wrong. The reason for this check is not clear at all, and it wrongly assumes that the stack can only grow down. But the main problem is that in general mm->start_stack has nothing to do with stack_vma->vm_start. Not only the application can switch to another stack and even unmap this area, setup_arg_pages() expands the stack without updating mm->start_stack during exec(). This means that in the likely case "addr > start_stack - size - PAGE_SIZE * 5" is simply impossible after find_vma_intersection() == F, or the stack can't grow anyway because of RLIMIT_STACK. Many thanks to Hugh for his explanations. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Hugh Dickins <hughd@google.com> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Davidlohr Bueso <davidlohr.bueso@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14ipc: always handle a new value of auto_msgmniAndrey Vagin
proc_dointvec_minmax() returns zero if a new value has been set. So we don't need to check all charecters have been handled. Below you can find two examples. In the new value has not been handled properly. $ strace ./a.out open("/proc/sys/kernel/auto_msgmni", O_WRONLY) = 3 write(3, "0\n\0", 3) = 2 close(3) = 0 exit_group(0) $ cat /sys/kernel/debug/tracing/trace $strace ./a.out open("/proc/sys/kernel/auto_msgmni", O_WRONLY) = 3 write(3, "0\n", 2) = 2 close(3) = 0 $ cat /sys/kernel/debug/tracing/trace a.out-697 [000] .... 3280.998235: unregister_ipcns_notifier <-proc_ipcauto_dointvec_minmax Fixes: 9eefe520c814 ("ipc: do not use a negative value to re-enable msgmni automatic recomputin") Signed-off-by: Andrey Vagin <avagin@openvz.org> Cc: Mathias Krause <minipli@googlemail.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Joe Perches <joe@perches.com> Cc: Davidlohr Bueso <davidlohr@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-07Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull "trivial tree" updates from Jiri Kosina: "Usual pile from trivial tree everyone is so eagerly waiting for" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) Remove MN10300_PROC_MN2WS0038 mei: fix comments treewide: Fix typos in Kconfig kprobes: update jprobe_example.c for do_fork() change Documentation: change "&" to "and" in Documentation/applying-patches.txt Documentation: remove obsolete pcmcia-cs from Changes Documentation: update links in Changes Documentation: Docbook: Fix generated DocBook/kernel-api.xml score: Remove GENERIC_HAS_IOMAP gpio: fix 'CONFIG_GPIO_IRQCHIP' comments tty: doc: Fix grammar in serial/tty dma-debug: modify check_for_stack output treewide: fix errors in printk genirq: fix reference in devm_request_threaded_irq comment treewide: fix synchronize_rcu() in comments checkstack.pl: port to AArch64 doc: queue-sysfs: minor fixes init/do_mounts: better syntax description MIPS: fix comment spelling powerpc/simpleboot: fix comment ...
2014-09-09Documentation: Docbook: Fix generated DocBook/kernel-api.xmlMasanari Iida
This patch fix spelling typo found in DocBook/kernel-api.xml. It is because the file is generated from the source comments, I have to fix the comments in source codes. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-08-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull namespace updates from Eric Biederman: "This is a bunch of small changes built against 3.16-rc6. The most significant change for users is the first patch which makes setns drmatically faster by removing unneded rcu handling. The next chunk of changes are so that "mount -o remount,.." will not allow the user namespace root to drop flags on a mount set by the system wide root. Aks this forces read-only mounts to stay read-only, no-dev mounts to stay no-dev, no-suid mounts to stay no-suid, no-exec mounts to stay no exec and it prevents unprivileged users from messing with a mounts atime settings. I have included my test case as the last patch in this series so people performing backports can verify this change works correctly. The next change fixes a bug in NFS that was discovered while auditing nsproxy users for the first optimization. Today you can oops the kernel by reading /proc/fs/nfsfs/{servers,volumes} if you are clever with pid namespaces. I rebased and fixed the build of the !CONFIG_NFS_FS case yesterday when a build bot caught my typo. Given that no one to my knowledge bases anything on my tree fixing the typo in place seems more responsible that requiring a typo-fix to be backported as well. The last change is a small semantic cleanup introducing /proc/thread-self and pointing /proc/mounts and /proc/net at it. This prevents several kinds of problemantic corner cases. It is a user-visible change so it has a minute chance of causing regressions so the change to /proc/mounts and /proc/net are individual one line commits that can be trivially reverted. Unfortunately I lost and could not find the email of the original reporter so he is not credited. From at least one perspective this change to /proc/net is a refgression fix to allow pthread /proc/net uses that were broken by the introduction of the network namespace" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: proc: Point /proc/mounts at /proc/thread-self/mounts instead of /proc/self/mounts proc: Point /proc/net at /proc/thread-self/net instead of /proc/self/net proc: Implement /proc/thread-self to point at the directory of the current thread proc: Have net show up under /proc/<tgid>/task/<tid> NFS: Fix /proc/fs/nfsfs/servers and /proc/fs/nfsfs/volumes mnt: Add tests for unprivileged remount cases that have found to be faulty mnt: Change the default remount atime from relatime to the existing value mnt: Correct permission checks in do_remount mnt: Move the test for MNT_LOCK_READONLY from change_mount_flags into do_remount mnt: Only change user settable mount flags in remount namespaces: Use task_lock and not rcu to protect nsproxy