syzbot


possible deadlock in do_io_accounting
Status: fixed on 2019/12/10 20:49
Reported-by: syzbot+41049bff8bbf2e607bf0@syzkaller.appspotmail.com
Fix commit: f1c5aa5eda08 ovl: detect overlapping layers
First crash: 833d, last: 721d

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 (8):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-49 possible deadlock in do_io_accounting C 4521 657d 893d 0/3 public: reported C repro on 2019/04/12 00:00
android-44 possible deadlock in do_io_accounting C 28 658d 893d 0/2 public: reported C repro on 2019/04/11 08:44
upstream possible deadlock in do_io_accounting (3) C inconclusive done 39 544d 634d 17/22 fixed on 2020/08/18 22:40
linux-4.19 possible deadlock in do_io_accounting (2) syz error 26 374d 637d 0/1 upstream: reported syz repro on 2019/12/24 07:12
upstream possible deadlock in do_io_accounting syz 1003 908d 1386d 0/22 closed as dup on 2017/12/12 21:27
upstream possible deadlock in do_io_accounting (2) 1 881d 879d 0/22 auto-closed as invalid on 2019/10/20 09:03
android-414 possible deadlock in do_io_accounting syz 70 910d 893d 0/1 public: reported syz repro on 2019/04/12 00:01
linux-4.14 possible deadlock in do_io_accounting C 56 24d 820d 0/1 upstream: reported C repro on 2019/06/24 03:04

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2019/06/13 13:20 linux-4.19.y 768292d05361 3f4e812b .config log report syz C
ci2-linux-4-19 2019/09/30 11:19 linux-4.19.y d573e8a79f70 c7a4fb99 .config log report
ci2-linux-4-19 2019/06/13 11:38 linux-4.19.y 768292d05361 3f4e812b .config log report
ci2-linux-4-19 2019/06/10 15:03 linux-4.19.y bb7b450e61a1 0159583c .config log report