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| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2015-11-05 18:51:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | eb06f43f1c94d502b7867b0998e92cdabbc060bc (patch) | |
| tree | d4d09f917ef5998069050c0de565b2c81585ba98 /mm/kasan | |
| parent | 89d3c87e20d95e3238eac85e43de7b3cb1f39d8b (diff) | |
| download | lwn-eb06f43f1c94d502b7867b0998e92cdabbc060bc.tar.gz lwn-eb06f43f1c94d502b7867b0998e92cdabbc060bc.zip | |
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>
Diffstat (limited to 'mm/kasan')
| -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 f5e068afb58e..12f222d0224b 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(); } |