On 06/06/2017 01:11 PM, Dmitry Vyukov wrote: > KASAN uses compiler instrumentation to intercept all memory accesses. > But it does not see memory accesses done in assembly code. > One notable user of assembly code is atomic operations. Frequently, > for example, an atomic reference decrement is the last access to an > object and a good candidate for a racy use-after-free. > > Add manual KASAN checks to atomic operations. > > Signed-off-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx> > Cc: Mark Rutland <mark.rutland@xxxxxxx> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Cc: Will Deacon <will.deacon@xxxxxxx>, > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, > Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>, > Cc: Ingo Molnar <mingo@xxxxxxxxxx>, > Cc: kasan-dev@xxxxxxxxxxxxxxxx > Cc: linux-mm@xxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Cc: x86@xxxxxxxxxx > --- Reviewed-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
