summaryrefslogtreecommitdiff
path: root/mm/slab.c
diff options
context:
space:
mode:
authorAndrey Konovalov <andreyknvl@google.com>2018-12-28 00:30:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 12:11:44 -0800
commit41eea9cd239c5b3fff726894f85c97f60e5799a3 (patch)
tree1a22d8495f8f69d9baa8916d347e50178dc00a6c /mm/slab.c
parent7f94ffbc4c6a1bdb51d39965e4f2acaa19bd798f (diff)
kasan, arm64: add brk handler for inline instrumentation
Tag-based KASAN inline instrumentation mode (which embeds checks of shadow memory into the generated code, instead of inserting a callback) generates a brk instruction when a tag mismatch is detected. This commit adds a tag-based KASAN specific brk handler, that decodes the immediate value passed to the brk instructions (to extract information about the memory access that triggered the mismatch), reads the register values (x0 contains the guilty address) and reports the bug. Link: http://lkml.kernel.org/r/c91fe7684070e34dc34b419e6b69498f4dcacc2d.1544099024.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Christoph Lameter <cl@linux.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slab.c')
0 files changed, 0 insertions, 0 deletions