syzbot


WARNING in drop_nlink (2)
Status: upstream: reported C repro on 2020/10/13 17:02
Reported-by: syzbot+651ca866e5e2b4b5095b@syzkaller.appspotmail.com
First crash: 300d, last: 3d12h

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in drop_nlink C 2 25d 301d 0/1 upstream: reported C repro on 2020/10/08 09:54
upstream WARNING in drop_nlink C done error 1 470d 466d 17/22 fixed on 2020/09/16 22:51
Patch testing requests:
Created Duration User Patch Repo Result
2021/04/22 05:18 12m ducheng2@gmail.com patch linux-next report log
2021/04/22 03:42 11m ducheng2@gmail.com patch upstream report log
2021/04/22 03:17 11m ducheng2@gmail.com patch upstream report log
2021/04/20 03:10 22m ducheng2@gmail.com upstream report log

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-smack-root 2021/08/02 06:32 upstream c500bee1c5b2 d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/07/02 01:03 upstream e04360a2ea01 d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/06/01 10:08 upstream c2131f7e73c9 d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/05/02 09:35 upstream 17ae69aba89d d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/04/02 03:40 upstream 1678e493d530 d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/03/01 16:15 upstream fe07bfda2fb9 d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/01/15 23:16 upstream 82821be8a2e1 d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/12/16 08:46 upstream 706451d47b37 d81b165e .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/11/08 23:09 upstream 15f5d201c177 d81b165e .config log report syz C
Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/10/09 16:56 upstream 583090b1b823 d81b165e .config log report syz C