]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
lib/test_kasan.c: add tests for several string/memory API functions
authorAndrey Ryabinin <aryabinin@virtuozzo.com>
Fri, 26 Oct 2018 22:02:34 +0000 (15:02 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 26 Oct 2018 23:25:18 +0000 (16:25 -0700)
commit0c96350a2d2f64fe777b444c995f6bb633c5d069
tree84bffc58274336874b81d5f8de99e2011931d44c
parent19a2ca0fb560fd7be7b5293c6b652c6d6078dcde
lib/test_kasan.c: add tests for several string/memory API functions

Arch code may have asm implementation of string/memory API functions
instead of using generic one from lib/string.c.  KASAN don't see memory
accesses in asm code, thus can miss many bugs.

E.g.  on ARM64 KASAN don't see bugs in memchr(), memcmp(), str[r]chr(),
str[n]cmp(), str[n]len().  Add tests for these functions to be sure that
we notice the problem on other architectures.

Link: http://lkml.kernel.org/r/20180920135631.23833-3-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Kyeongdon Kim <kyeongdon.kim@lge.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>
lib/test_kasan.c