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authorDmitry Vyukov <dvyukov@google.com>2016-12-12 16:44:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 18:55:09 -0800
commit5c5c1f36cedfb51ec291181e71817f7fe7e03ee2 (patch)
tree566b1a80fda44dc6997967a0f35335750610f929 /mm/kasan
parent49920d28781dcced10cd30cb9a938e7d045a1c94 (diff)
downloadlinux-5c5c1f36cedfb51ec291181e71817f7fe7e03ee2.tar.bz2
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/kasan')
-rw-r--r--mm/kasan/report.c2
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();
}