syzbot


panic: vput: ref cnt
Status: fixed on 2019/08/15 14:16
Reported-by: syzbot+bf2ac4d4fa9ee92903b8@syzkaller.appspotmail.com
Fix commit: d627fa5cc364 Serialize access to the vnode pointers associated with acct(2) system accounting. Prevents a race where the acct thread and the acct(2) syscall both tries to close a vnode.
First crash: 805d, last: 804d
Patch testing requests:
Created Duration User Patch Repo Result
2019/08/13 08:42 18m anton@basename.se https://github.com/mptre/openbsd-src acct OK
2019/08/12 11:52 16m anton@basename.se https://github.com/mptre/openbsd-src acct OK

Sample crash report:

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-openbsd-multicore 2019/08/12 09:57 openbsd 4e6b438a7e45 8620c2c2 .config log report syz C
ci-openbsd-multicore 2019/08/13 22:13 openbsd 723403cbe800 74d61399 .config log report
ci-openbsd-multicore 2019/08/13 12:05 openbsd 723403cbe800 8620c2c2 .config log report
ci-openbsd-multicore 2019/08/13 06:45 openbsd 8c9a8c5f30e0 8620c2c2 .config log report
ci-openbsd-main 2019/08/12 23:02 openbsd 8c9a8c5f30e0 8620c2c2 .config log report
ci-openbsd-multicore 2019/08/12 09:42 openbsd 4e6b438a7e45 8620c2c2 .config log report