diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2017-05-23 21:53:57 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-17 06:41:51 +0200 |
| commit | 5331baaeb7e6a7448c5e2d1e48e91260cc99b710 (patch) | |
| tree | 4e42241456e28e1793f84f887d045effa0747b8f /mm/kasan | |
| parent | 8936b74fd339be61f85c2ec74e311093d855bb07 (diff) | |
kasan: respect /proc/sys/kernel/traceoff_on_warning
[ Upstream commit 4f40c6e5627ea73b4e7c615c59631f38cc880885 ]
After much waiting I finally reproduced a KASAN issue, only to find my
trace-buffer empty of useful information because it got spooled out :/
Make kasan_report honour the /proc/sys/kernel/traceoff_on_warning
interface.
Link: http://lkml.kernel.org/r/20170125164106.3514-1-aryabinin@virtuozzo.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/kasan')
| -rw-r--r-- | mm/kasan/report.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 073325aedc68..8ca412aebcf1 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -13,6 +13,7 @@ * */ +#include <linux/ftrace.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/printk.h> @@ -298,6 +299,8 @@ void kasan_report(unsigned long addr, size_t size, if (likely(!kasan_report_enabled())) return; + disable_trace_on_warning(); + info.access_addr = (void *)addr; info.access_size = size; info.is_write = is_write; |