diff options
| author | Kees Cook <keescook@chromium.org> | 2016-06-23 15:24:05 -0700 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-08-27 11:23:38 +0800 |
| commit | 3ad78bad4fd43467f1fc6dff63076789b30c116b (patch) | |
| tree | 486b0bde0d21734f1a3ba5a52803e6204f128074 /init/Kconfig | |
| parent | 784bd0f8d7303ff0025e2ea44b68b6fc6323544d (diff) | |
mm: SLUB hardened usercopy support
Under CONFIG_HARDENED_USERCOPY, this adds object size checking to the
SLUB allocator to catch any copies that may span objects. Includes a
redzone handling fix discovered by Michael Ellerman.
Based on code from PaX and grsecurity.
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Reviwed-by: Laura Abbott <labbott@redhat.com>
(cherry picked from commit ed18adc1cdd00a5c55a20fbdaed4804660772281)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index fa031a140397..e1d1d6936f92 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1727,6 +1727,7 @@ config SLAB config SLUB bool "SLUB (Unqueued Allocator)" + select HAVE_HARDENED_USERCOPY_ALLOCATOR help SLUB is a slab allocator that minimizes cache line usage instead of managing queues of cached objects (SLAB approach). |