syzbot


INFO: task hung in misc_open (4)
Status: upstream: reported C repro on 2021/02/13 12:38
Reported-by: syzbot+358c9ab4c93da7b7238c@syzkaller.appspotmail.com
First crash: 155d, last: 4d16h

Cause bisection: failed (bisect log)
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in misc_open (2) 8 593d 593d 0/22 auto-closed as invalid on 2019/12/23 14:44
upstream INFO: task hung in misc_open 2 930d 1010d 0/22 auto-closed as invalid on 2019/04/20 12:01
upstream INFO: task hung in misc_open (3) 2 299d 308d 0/22 auto-closed as invalid on 2020/10/12 03:30

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/04/03 04:08 upstream d93a0d43 2bd9619f .config log report syz C
Crashes (10):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/04/17 02:54 upstream 2f7b98d1 7e2b734b .config log report syz C INFO: task hung in misc_open
ci-upstream-kasan-gce 2021/02/09 12:30 upstream e0756cfc 2bd9619f .config log report syz C INFO: task hung in misc_open
ci-upstream-kasan-gce 2021/05/05 02:49 upstream d2b6f8a1 06c27ff5 .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce-smack-root 2021/04/09 12:58 upstream 4fa56ad0 6a81331a .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce-selinux-root 2021/03/03 22:52 upstream f69d02e3 06ed56cd .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce-smack-root 2021/02/20 02:25 upstream f40ddce8 f689d40a .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce 2021/02/09 07:39 upstream e0756cfc 2bd9619f .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce 2020/12/11 15:18 upstream 33dc9614 ba24ffcd .config log report info
ci-upstream-kasan-gce 2020/12/05 09:39 upstream e87297fa 20366b87 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/03/03 22:43 linux-next f6b975aa 06ed56cd .config log report info INFO: task can't die in misc_open