syzbot


possible deadlock in pipe_lock
Status: fixed on 2019/11/29 10:34
Reported-by: syzbot+8aec72b2d58c389b4741@syzkaller.appspotmail.com
Fix commit: f1c5aa5e ovl: detect overlapping layers
First crash: 474d, last: 470d

Fix bisection: fixed by (bisect log):

commit f1c5aa5eda08710c2ba619d93126380881fa1114
Author: Amir Goldstein <amir73il@gmail.com>
Date: Thu Apr 18 14:42:08 2019 +0000

  ovl: detect overlapping layers

similar bugs (6):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream possible deadlock in pipe_lock 50806 966d 1014d 0/17 closed as invalid on 2018/02/14 14:20
upstream possible deadlock in pipe_lock (2) 3 477d 547d 0/17 auto-closed as invalid on 2019/10/18 15:02
linux-4.19 possible deadlock in pipe_lock (2) C 4 8d07h 228d 0/1 upstream: reported C repro on 2019/12/26 07:17
android-49 possible deadlock in pipe_lock 5 291d 484d 0/3 auto-closed as invalid on 2020/02/21 12:40
android-44 possible deadlock in pipe_lock C 82 251d 484d 0/2 public: reported C repro on 2019/04/14 08:51
upstream possible deadlock in pipe_lock (3) C cause+fix 4 191d 228d 0/17 upstream: reported C repro on 2019/12/26 21:25

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-19 2019/04/25 00:18 linux-4.19.y c98875d9 8e3c52b1 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci2-linux-4-19 2019/04/28 07:06 linux-4.19.y 19bb613a b617407b .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk