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: 236d, last: 12d

Cause bisection: failed (bisect log)

Fix bisection: the fix commit could be any of (bisect log):
  2f7b98d1e55c Merge tag 'drm-fixes-2021-04-16' of git://anongit.freedesktop.org/drm/drm
  303392fd5c16 Merge tag 'leds-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in misc_open (2) 8 673d 674d 0/22 auto-closed as invalid on 2019/12/23 14:44
upstream INFO: task hung in misc_open 2 1010d 1091d 0/22 auto-closed as invalid on 2019/04/20 12:01
upstream INFO: task hung in misc_open (3) 2 380d 388d 0/22 auto-closed as invalid on 2020/10/12 03:30

Sample crash report:

Crashes (12):
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 2f7b98d1e55c 7e2b734b .config log report syz C INFO: task hung in misc_open
ci-upstream-kasan-gce 2021/02/09 12:30 upstream e0756cfc7d7c 2bd9619f .config log report syz C INFO: task hung in misc_open
ci-upstream-kasan-gce 2021/07/17 09:59 upstream d980cc0620ae f115ae98 .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce-selinux-root 2021/07/10 17:08 upstream 3dbdb38e2869 8f5a7b8c .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce 2021/05/05 02:49 upstream d2b6f8a17919 06c27ff5 .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce-smack-root 2021/04/09 12:58 upstream 4fa56ad0d12e 6a81331a .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce-selinux-root 2021/03/03 22:52 upstream f69d02e37a85 06ed56cd .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce-smack-root 2021/02/20 02:25 upstream f40ddce88593 f689d40a .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce 2021/02/09 07:39 upstream e0756cfc7d7c 2bd9619f .config log report info INFO: task hung in misc_open
ci-upstream-kasan-gce 2020/12/11 15:18 upstream 33dc9614dc20 ba24ffcd .config log report info
ci-upstream-kasan-gce 2020/12/05 09:39 upstream e87297fa080a 20366b87 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/03/03 22:43 linux-next f6b975aabf15 06ed56cd .config log report info INFO: task can't die in misc_open