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| author |   Dmitry Vyukov <dvyukov@google.com> | 2016-12-12 16:44:53 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-12 18:55:09 -0800 |
| commit | 5c5c1f36cedfb51ec291181e71817f7fe7e03ee2 (patch) | |
| tree | 566b1a80fda44dc6997967a0f35335750610f929 /mm | |
| parent | mm: make transparent hugepage size public (diff) | |
| download | wireguard-linux-5c5c1f36cedfb51ec291181e71817f7fe7e03ee2.tar.xz wireguard-linux-5c5c1f36cedfb51ec291181e71817f7fe7e03ee2.zip | |
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>
Diffstat (limited to 'mm')
| -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 073325aedc68..b82b3e215157 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -136,6 +136,8 @@ 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(); } |