Merge 4.4.203 into android-4.4-p

Changes in 4.4.203
	slip: Fix memory leak in slip_open error path
	ax88172a: fix information leak on short answers
	ALSA: usb-audio: Fix missing error check at mixer resolution test
	ALSA: usb-audio: not submit urb for stopped endpoint
	Input: ff-memless - kill timer in destroy()
	ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
	ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
	iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
	mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()
	mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
	mmc: sdhci-of-at91: fix quirk2 overwrite
	iio: dac: mcp4922: fix error handling in mcp4922_write_raw
	ALSA: pcm: signedness bug in snd_pcm_plug_alloc()
	ARM: dts: at91/trivial: Fix USART1 definition for at91sam9g45
	ALSA: seq: Do error checks at creating system ports
	gfs2: Don't set GFS2_RDF_UPTODATE when the lvb is updated
	ASoC: dpcm: Properly initialise hw->rate_max
	MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3
	ARM: dts: exynos: Fix sound in Snow-rev5 Chromebook
	i40e: use correct length for strncpy
	i40e: hold the rtnl lock on clearing interrupt scheme
	i40e: Prevent deleting MAC address from VF when set by PF
	ARM: dts: pxa: fix power i2c base address
	rtl8187: Fix warning generated when strncpy() destination length matches the sixe argument
	net: lan78xx: Bail out if lan78xx_get_endpoints fails
	ASoC: sgtl5000: avoid division by zero if lo_vag is zero
	ath10k: wmi: disable softirq's while calling ieee80211_rx
	mips: txx9: fix iounmap related issue
	of: make PowerMac cache node search conditional on CONFIG_PPC_PMAC
	ARM: dts: omap3-gta04: give spi_lcd node a label so that we can overwrite in other DTS files
	ARM: dts: omap3-gta04: tvout: enable as display1 alias
	ARM: dts: omap3-gta04: make NAND partitions compatible with recent U-Boot
	ARM: dts: omap3-gta04: keep vpll2 always on
	dmaengine: dma-jz4780: Further residue status fix
	signal: Always ignore SIGKILL and SIGSTOP sent to the global init
	signal: Properly deliver SIGILL from uprobes
	signal: Properly deliver SIGSEGV from x86 uprobes
	scsi: sym53c8xx: fix NULL pointer dereference panic in sym_int_sir()
	ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set
	scsi: pm80xx: Corrected dma_unmap_sg() parameter
	scsi: pm80xx: Fixed system hang issue during kexec boot
	kprobes: Don't call BUG_ON() if there is a kprobe in use on free list
	nvmem: core: return error code instead of NULL from nvmem_device_get
	media: fix: media: pci: meye: validate offset to avoid arbitrary access
	ALSA: intel8x0m: Register irq handler after register initializations
	pinctrl: at91-pio4: fix has_config check in atmel_pctl_dt_subnode_to_map()
	llc: avoid blocking in llc_sap_close()
	powerpc/vdso: Correct call frame information
	ARM: dts: socfpga: Fix I2C bus unit-address error
	pinctrl: at91: don't use the same irqchip with multiple gpiochips
	cxgb4: Fix endianness issue in t4_fwcache()
	power: supply: ab8500_fg: silence uninitialized variable warnings
	power: supply: max8998-charger: Fix platform data retrieval
	kernfs: Fix range checks in kernfs_get_target_path
	s390/qeth: invoke softirqs after napi_schedule()
	PCI/ACPI: Correct error message for ASPM disabling
	serial: mxs-auart: Fix potential infinite loop
	powerpc/iommu: Avoid derefence before pointer check
	powerpc/64s/hash: Fix stab_rr off by one initialization
	powerpc/pseries: Disable CPU hotplug across migrations
	libfdt: Ensure INT_MAX is defined in libfdt_env.h
	power: supply: twl4030_charger: fix charging current out-of-bounds
	power: supply: twl4030_charger: disable eoc interrupt on linear charge
	net: toshiba: fix return type of ndo_start_xmit function
	net: xilinx: fix return type of ndo_start_xmit function
	net: broadcom: fix return type of ndo_start_xmit function
	net: amd: fix return type of ndo_start_xmit function
	usb: chipidea: Fix otg event handler
	ARM: dts: am335x-evm: fix number of cpsw
	ARM: dts: ux500: Correct SCU unit address
	ARM: dts: ux500: Fix LCDA clock line muxing
	ARM: dts: ste: Fix SPI controller node names
	cpufeature: avoid warning when compiling with clang
	bnx2x: Ignore bandwidth attention in single function mode
	net: micrel: fix return type of ndo_start_xmit function
	x86/CPU: Use correct macros for Cyrix calls
	MIPS: kexec: Relax memory restriction
	media: pci: ivtv: Fix a sleep-in-atomic-context bug in ivtv_yuv_init()
	media: davinci: Fix implicit enum conversion warning
	usb: gadget: uvc: configfs: Drop leaked references to config items
	usb: gadget: uvc: configfs: Prevent format changes after linking header
	usb: gadget: uvc: Factor out video USB request queueing
	usb: gadget: uvc: Only halt video streaming endpoint in bulk mode
	misc: kgdbts: Fix restrict error
	misc: genwqe: should return proper error value.
	vfio/pci: Fix potential memory leak in vfio_msi_cap_len
	scsi: libsas: always unregister the old device if going to discover new
	ARM: dts: tegra30: fix xcvr-setup-use-fuses
	ARM: tegra: apalis_t30: fix mmc1 cmd pull-up
	net: smsc: fix return type of ndo_start_xmit function
	EDAC: Raise the maximum number of memory controllers
	Bluetooth: L2CAP: Detect if remote is not able to use the whole MPS
	arm64: dts: amd: Fix SPI bus warnings
	fuse: use READ_ONCE on congestion_threshold and max_background
	Bluetooth: hci_ldisc: Fix null pointer derefence in case of early data
	Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
	memfd: Use radix_tree_deref_slot_protected to avoid the warning.
	slcan: Fix memory leak in error path
	net: cdc_ncm: Signedness bug in cdc_ncm_set_dgram_size()
	x86/atomic: Fix smp_mb__{before,after}_atomic()
	apparmor: fix uninitialized lsm_audit member
	apparmor: fix update the mtime of the profile file on replacement
	apparmor: fix module parameters can be changed after policy is locked
	kprobes/x86: Prohibit probing on exception masking instructions
	uprobes/x86: Prohibit probing on MOV SS instruction
	fbdev: Remove unused SH-Mobile HDMI driver
	fbdev: Ditch fb_edid_add_monspecs
	block: introduce blk_rq_is_passthrough
	libata: have ata_scsi_rw_xlat() fail invalid passthrough requests
	net: ovs: fix return type of ndo_start_xmit function
	f2fs: return correct errno in f2fs_gc
	SUNRPC: Fix priority queue fairness
	ath10k: fix vdev-start timeout on error
	ath9k: fix reporting calculated new FFT upper max
	usb: gadget: udc: fotg210-udc: Fix a sleep-in-atomic-context bug in fotg210_get_status()
	nl80211: Fix a GET_KEY reply attribute
	dmaengine: ep93xx: Return proper enum in ep93xx_dma_chan_direction
	dmaengine: timb_dma: Use proper enum in td_prep_slave_sg
	mei: samples: fix a signedness bug in amt_host_if_call()
	cxgb4: Use proper enum in cxgb4_dcb_handle_fw_update
	cxgb4: Use proper enum in IEEE_FAUX_SYNC
	powerpc/pseries: Fix DTL buffer registration
	powerpc/pseries: Fix how we iterate over the DTL entries
	mtd: rawnand: sh_flctl: Use proper enum for flctl_dma_fifo0_transfer
	ixgbe: Fix crash with VFs and flow director on interface flap
	IB/mthca: Fix error return code in __mthca_init_one()
	ata: ep93xx: Use proper enums for directions
	ALSA: hda/sigmatel - Disable automute for Elo VuPoint
	KVM: PPC: Book3S PR: Exiting split hack mode needs to fixup both PC and LR
	USB: serial: cypress_m8: fix interrupt-out transfer length
	mtd: physmap_of: Release resources on error
	brcmfmac: fix full timeout waiting for action frame on-channel tx
	NFSv4.x: fix lock recovery during delegation recall
	dmaengine: ioat: fix prototype of ioat_enumerate_channels
	Input: st1232 - set INPUT_PROP_DIRECT property
	x86/olpc: Fix build error with CONFIG_MFD_CS5535=m
	crypto: mxs-dcp - Fix SHA null hashes and output length
	crypto: mxs-dcp - Fix AES issues
	ACPI / SBS: Fix rare oops when removing modules
	fbdev: sbuslib: use checked version of put_user()
	fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper()
	bcache: recal cached_dev_sectors on detach
	proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted()
	backlight: lm3639: Unconditionally call led_classdev_unregister
	printk: Give error on attempt to set log buffer length to over 2G
	media: isif: fix a NULL pointer dereference bug
	GFS2: Flush the GFS2 delete workqueue before stopping the kernel threads
	media: cx231xx: fix potential sign-extension overflow on large shift
	x86/kexec: Correct KEXEC_BACKUP_SRC_END off-by-one error
	gpio: syscon: Fix possible NULL ptr usage
	spi: spidev: Fix OF tree warning logic
	ARM: 8802/1: Call syscall_trace_exit even when system call skipped
	hwmon: (pwm-fan) Silence error on probe deferral
	mac80211: minstrel: fix CCK rate group streams value
	spi: rockchip: initialize dma_slave_config properly
	arm64: uaccess: Ensure PAN is re-enabled after unhandled uaccess fault
	Linux 4.4.203

Change-Id: Icba08e9fbb6f47274ee6fcf1023a1469cd8550d3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

6 files changed, 35 insertions, 15 deletions

diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 9068369f8a1b..0d8dd71f989e 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -380,6 +380,8 @@ void __aa_fs_profile_migrate_dents(struct aa_profile *old,
 
 	for (i = 0; i < AAFS_PROF_SIZEOF; i++) {
 		new->dents[i] = old->dents[i];
+		if (new->dents[i])
+			new->dents[i]->d_inode->i_mtime = CURRENT_TIME;
 		old->dents[i] = NULL;
 	}
 }
diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
index 89c78658031f..3a7f1da1425e 100644
--- a/security/apparmor/audit.c
+++ b/security/apparmor/audit.c
@@ -200,7 +200,8 @@ int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
 
 	if (sa->aad->type == AUDIT_APPARMOR_KILL)
 		(void)send_sig_info(SIGKILL, NULL,
-				    sa->u.tsk ?  sa->u.tsk : current);
+			sa->type == LSM_AUDIT_DATA_TASK && sa->u.tsk ?
+				    sa->u.tsk : current);
 
 	if (sa->aad->type == AUDIT_APPARMOR_ALLOWED)
 		return complain_error(sa->aad->error);
diff --git a/security/apparmor/file.c b/security/apparmor/file.c
index 913f377a038a..43d6ae71b446 100644
--- a/security/apparmor/file.c
+++ b/security/apparmor/file.c
@@ -110,7 +110,8 @@ int aa_audit_file(struct aa_profile *profile, struct file_perms *perms,
 	int type = AUDIT_APPARMOR_AUTO;
 	struct common_audit_data sa;
 	struct apparmor_audit_data aad = {0,};
-	sa.type = LSM_AUDIT_DATA_NONE;
+	sa.type = LSM_AUDIT_DATA_TASK;
+	sa.u.tsk = NULL;
 	sa.aad = &aad;
 	aad.op = op,
 	aad.fs.request = request;
diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h
index c28b0f20ab53..52275f040a5f 100644
--- a/security/apparmor/include/policy.h
+++ b/security/apparmor/include/policy.h
@@ -403,6 +403,8 @@ static inline int AUDIT_MODE(struct aa_profile *profile)
 	return profile->audit;
 }
 
+bool policy_view_capable(void);
+bool policy_admin_capable(void);
 bool aa_may_manage_policy(int op);
 
 #endif /* __AA_POLICY_H */
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 6dc4ce47580f..a95b6c98d460 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -749,51 +749,49 @@ __setup("apparmor=", apparmor_enabled_setup);
 /* set global flag turning off the ability to load policy */
 static int param_set_aalockpolicy(const char *val, const struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_admin_capable())
 		return -EPERM;
-	if (aa_g_lock_policy)
-		return -EACCES;
 	return param_set_bool(val, kp);
 }
 
 static int param_get_aalockpolicy(char *buffer, const struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_view_capable())
 		return -EPERM;
 	return param_get_bool(buffer, kp);
 }
 
 static int param_set_aabool(const char *val, const struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_admin_capable())
 		return -EPERM;
 	return param_set_bool(val, kp);
 }
 
 static int param_get_aabool(char *buffer, const struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_view_capable())
 		return -EPERM;
 	return param_get_bool(buffer, kp);
 }
 
 static int param_set_aauint(const char *val, const struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_admin_capable())
 		return -EPERM;
 	return param_set_uint(val, kp);
 }
 
 static int param_get_aauint(char *buffer, const struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_view_capable())
 		return -EPERM;
 	return param_get_uint(buffer, kp);
 }
 
 static int param_get_audit(char *buffer, struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_view_capable())
 		return -EPERM;
 
 	if (!apparmor_enabled)
@@ -805,7 +803,7 @@ static int param_get_audit(char *buffer, struct kernel_param *kp)
 static int param_set_audit(const char *val, struct kernel_param *kp)
 {
 	int i;
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_admin_capable())
 		return -EPERM;
 
 	if (!apparmor_enabled)
@@ -826,7 +824,7 @@ static int param_set_audit(const char *val, struct kernel_param *kp)
 
 static int param_get_mode(char *buffer, struct kernel_param *kp)
 {
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_admin_capable())
 		return -EPERM;
 
 	if (!apparmor_enabled)
@@ -838,7 +836,7 @@ static int param_get_mode(char *buffer, struct kernel_param *kp)
 static int param_set_mode(const char *val, struct kernel_param *kp)
 {
 	int i;
-	if (!capable(CAP_MAC_ADMIN))
+	if (!policy_admin_capable())
 		return -EPERM;
 
 	if (!apparmor_enabled)
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
index 705c2879d3a9..9e2d9f2c9e37 100644
--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -916,6 +916,22 @@ static int audit_policy(int op, gfp_t gfp, const char *name, const char *info,
 			&sa, NULL);
 }
 
+bool policy_view_capable(void)
+{
+	struct user_namespace *user_ns = current_user_ns();
+	bool response = false;
+
+	if (ns_capable(user_ns, CAP_MAC_ADMIN))
+		response = true;
+
+	return response;
+}
+
+bool policy_admin_capable(void)
+{
+	return policy_view_capable() && !aa_g_lock_policy;
+}
+
 /**
  * aa_may_manage_policy - can the current task manage policy
  * @op: the policy manipulation operation being done
@@ -930,7 +946,7 @@ bool aa_may_manage_policy(int op)
 		return 0;
 	}
 
-	if (!capable(CAP_MAC_ADMIN)) {
+	if (!policy_admin_capable()) {
 		audit_policy(op, GFP_KERNEL, NULL, "not policy admin", -EACCES);
 		return 0;
 	}