syzbot


KASAN: null-ptr-deref Write in video_usercopy
Status: upstream: reported C repro on 2020/01/08 08:54
Reported-by: syzbot+9240c422be249a8422bd@syzkaller.appspotmail.com
First crash: 44d, last: 44d

Cause bisection: introduced by (bisect log):

commit c8ef1a6076bfb986052ff8fd8f5eb3b3a3f1048e
Author: Arnd Bergmann <arnd@arndb.de>
Date: Mon Dec 16 14:15:02 2019 +0000

  media: v4l2-core: split out data copy from video_usercopy

Crash: KASAN: null-ptr-deref Write in video_usercopy (log)
Repro: C syz .config

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-linux-next-kasan-gce-root 2020/01/09 00:22 linux-next 4becfd1b ddc3e859 .config log report syz C arnd@arndb.de, hverkuil-cisco@xs4all.nl, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-linux-next-kasan-gce-root 2020/01/08 02:23 linux-next 26467385 6738e0b3 .config log report syz C arnd@arndb.de, hverkuil-cisco@xs4all.nl, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com