Commit 9dcadd38 authored by Alexander Potapenko's avatar Alexander Potapenko Committed by Linus Torvalds

kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2

Signed-off-by: default avatarAlexander Potapenko <glider@google.com>
Acked-by: default avatarAndrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Konstantin Serebryany <kcc@google.com>
Cc: Dmitry Chernenkov <dmitryc@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent cd11016e
...@@ -294,6 +294,8 @@ static noinline void __init kmalloc_uaf2(void) ...@@ -294,6 +294,8 @@ static noinline void __init kmalloc_uaf2(void)
} }
ptr1[40] = 'x'; ptr1[40] = 'x';
if (ptr1 == ptr2)
pr_err("Could not detect use-after-free: ptr1 == ptr2\n");
kfree(ptr2); kfree(ptr2);
} }
......
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