diff options
| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2015-11-05 18:51:26 -0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-04-11 16:10:32 +0800 |
| commit | 6545f4bcb4cb581c8dd922442e46781dc3348ddc (patch) | |
| tree | b0e3870152168516e4e09fcfc7b8ad71f2ca2613 | |
| parent | 9060ab15af2fc9fda3e0eff7f322ceca62982109 (diff) | |
kasan: always taint kernel on report
Currently we already taint the kernel in some cases. E.g. if we hit some
bug in slub memory we call object_err() which will taint the kernel with
TAINT_BAD_PAGE flag. But for other kind of bugs kernel left untainted.
Always taint with TAINT_BAD_PAGE if kasan found some bug. This is useful
for automated testing.
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit eb06f43f1c94d502b7867b0998e92cdabbc060bc)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
| -rw-r--r-- | mm/kasan/report.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index c59fc0e16d17..e0b3e94ecdb5 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -238,6 +238,7 @@ static void kasan_report_error(struct kasan_access_info *info) } pr_err("=================================" "=================================\n"); + add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE); spin_unlock_irqrestore(&report_lock, flags); kasan_enable_current(); } |