From 5c5c1f36cedfb51ec291181e71817f7fe7e03ee2 Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Mon, 12 Dec 2016 16:44:53 -0800 Subject: [PATCH] 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 Acked-by: Andrey Ryabinin Cc: Alexander Potapenko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/kasan/report.c | 2 ++ 1 file changed, 2 insertions(+) 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(); } -- 2.20.1