syzbot


INFO: task hung in fuse_lookup (3)
Status: upstream: reported C repro on 2019/08/14 09:48
Reported-by: syzbot+b64df836ad08c8e31a47@syzkaller.appspotmail.com
First crash: 840d, last: 156d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: INFO: task hung in lookup_slow (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 INFO: task hung in fuse_lookup 4 627d 780d 0/1 auto-closed as invalid on 2020/01/29 21:30
linux-4.19 INFO: task hung in fuse_lookup C error 4 460d 675d 0/1 upstream: reported C repro on 2019/08/14 05:24
linux-4.14 INFO: task hung in fuse_lookup (2) 1 461d 461d 0/1 auto-closed as invalid on 2020/07/13 23:30
upstream INFO: task hung in fuse_lookup 16 1019d 1071d 0/22 closed as invalid on 2018/09/05 12:51
android-49 INFO: task hung in fuse_lookup C 112 589d 800d 0/3 public: reported C repro on 2019/04/11 08:44
upstream INFO: task hung in fuse_lookup (2) C 13 853d 1013d 0/22 closed as dup on 2018/09/10 08:43

Sample crash report:

Crashes (16):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/08/14 05:38 upstream ee1c7bd3 ef801a3e .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/08/14 04:14 upstream ee1c7bd3 ef801a3e .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/08/14 02:35 upstream ee1c7bd3 ef801a3e .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/01/14 21:40 upstream 65f0d241 65a7a854 .config log report info
ci-upstream-kasan-gce-root 2021/01/14 21:29 upstream 65f0d241 65a7a854 .config log report info
ci-upstream-kasan-gce 2021/01/14 21:28 upstream 65f0d241 65a7a854 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/02/23 06:34 upstream 54dedb5b 2c36e7a7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/05 20:58 upstream ea2cec24 40f2363e .config log report
ci-upstream-kasan-gce-root 2019/03/25 12:04 upstream 8c2ffd91 2c86e0a5 .config log report
ci-upstream-kasan-gce-root 2019/03/22 15:25 upstream 0939221e dce6e62f .config log report
ci-upstream-kasan-gce-selinux-root 2019/03/20 03:42 upstream b7a42146 2458c1c6 .config log report
ci-upstream-kasan-gce-selinux-root 2019/03/19 17:14 upstream 9e98c678 e4549234 .config log report
ci-upstream-kasan-gce-root 2019/03/18 18:47 upstream 9e98c678 4656beca .config log report
ci-upstream-kasan-gce-selinux-root 2019/03/02 20:03 upstream c93d9218 1c0e457a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/12/23 21:57 linux-next 7ddd09fc be5c2c81 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/17 04:58 linux-next cf08baa2 bab43553 .config log report