diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2016-12-12 16:44:53 -0800 |
|---|---|---|
| committer | Paul Lawrence <paullawrence@google.com> | 2017-12-14 08:24:47 -0800 |
| commit | 418991b870f79c681fb3499a520a69cda6788959 (patch) | |
| tree | 92db0f471a8abf0464dd06e5ff3baf2af138ec15 /mm/kasan | |
| parent | 915047a1dea413c6bc9726fd36725a685ee14852 (diff) | |
UPSTREAM: kasan: support panic_on_warn
If user sets panic_on_warn, he wants kernel to panic if there is
anything barely wrong with the kernel. KASAN-detected errors are
definitely not less benign than an arbitrary kernel WARNING.
Panic after KASAN errors if panic_on_warn is set.
We use this for continuous fuzzing where we want kernel to stop and
reboot on any error.
Link: http://lkml.kernel.org/r/1476694764-31986-1-git-send-email-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from 5c5c1f36cedfb51ec291181e71817f7fe7e03ee2)
Change-Id: Iee7cbc4ffbce8eb8d827447fdf960a6520d10b00
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Diffstat (limited to 'mm/kasan')
| -rw-r--r-- | mm/kasan/report.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 8ca412aebcf1..f479365530b6 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -137,6 +137,8 @@ static void kasan_end_report(unsigned long *flags) pr_err("==================================================================\n"); add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE); spin_unlock_irqrestore(&report_lock, *flags); + if (panic_on_warn) + panic("panic_on_warn set ...\n"); kasan_enable_current(); } |