syzbot


INFO: task hung in lo_open (2)
Status: fixed on 2019/01/15 20:25
Reported-by: syzbot+712350eead2a19b102e9@syzkaller.appspotmail.com
Fix commit: 1dded9acf6dc loop: Avoid circular locking dependency between loop_ctl_mutex and bd_mutex
First crash: 1389d, last: 1160d
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 INFO: task hung in lo_open syz 593 776d 1010d 0/2 public: reported syz repro on 2019/04/14 00:02
android-49 INFO: task hung in lo_open C 2683 776d 1010d 0/3 public: reported C repro on 2019/04/14 09:28
android-414 INFO: task hung in lo_open C 6143 776d 1013d 0/1 public: reported C repro on 2019/04/11 00:00
linux-4.14 INFO: task hung in lo_open C 1183 2d09h 1013d 0/1 upstream: reported C repro on 2019/04/11 12:30
upstream INFO: task hung in lo_open 3 1477d 1494d 0/22 closed as invalid on 2018/02/14 14:52

Sample crash report:

Crashes (10):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2018/11/15 09:10 upstream d41217aac0a5 5f5f6d14 .config log report
ci-upstream-kasan-gce-selinux-root 2018/11/09 04:05 upstream b00d209241ff e85d2a61 .config log report
ci-upstream-kasan-gce-root 2018/10/15 15:46 upstream 35a7f35ad1b1 caf12900 .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/08 10:00 upstream 0238df646e62 8b311eaf .config log report
ci-upstream-kasan-gce-root 2018/10/04 08:39 upstream cec4de302c5f 8b311eaf .config log report
ci-upstream-kasan-gce-root 2018/04/02 10:30 upstream 0adb32858b0b dc889257 .config log report
ci-upstream-kasan-gce 2018/03/31 16:42 upstream b5dbc28762fd 8fbce0e4 .config log report
ci-upstream-kasan-gce-root 2018/03/31 15:18 upstream b5dbc28762fd 8fbce0e4 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/22 20:34 linux-next 8c60c36d0b8c ecb386fe .config log report
ci-upstream-linux-next-kasan-gce-root 2018/09/01 01:18 linux-next a880148cb2af a4718693 .config log report