syzbot


witness: reversal: lock order data missing
Status: fixed on 2021/05/14 01:59
Reported-by: syzbot+2300a1bedc425f6f851e@syzkaller.appspotmail.com
Fix commit: 8b594b45f4b5 Move ktrfds() below fdpunlock(). This fixes lock order issue between vn_lock(9) and fdplock().
First crash: 142d, last: 72d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd witness: reversal: lock order data missing (2) C 107 14h24m 72d 0/3 upstream: reported C repro on 2021/05/14 02:04

Sample crash report:

Crashes (667):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-openbsd-multicore 2021/03/29 05:23 openbsd 1e3e204afb9b a8529b82 .config log report syz C witness: reversal: lock order data missing
ci-openbsd-multicore 2021/03/04 17:32 openbsd 6f079c3dcc0d f89ed068 .config log report syz C witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/13 13:34 openbsd 836f221d18e3 ecb594cb .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/13 08:46 openbsd 836f221d18e3 ed7d41c5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/13 08:42 openbsd 836f221d18e3 ed7d41c5 .config log report witness: reversal: lock order data missing
ci-openbsd-setuid 2021/05/13 01:53 openbsd 265dce8574c1 ed7d41c5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/12 19:22 openbsd 265dce8574c1 ed7d41c5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/12 07:03 openbsd a3d93523efd5 86294427 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/11 23:52 openbsd c34a0df36ba0 b3c3bb8e .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/11 18:46 openbsd c34a0df36ba0 b3c3bb8e .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/11 18:46 openbsd c34a0df36ba0 b3c3bb8e .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/11 14:53 openbsd c34a0df36ba0 ca873091 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/11 01:45 openbsd 376de1a99157 ca873091 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/10 12:18 openbsd 8dcb626a73eb ca873091 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/10 01:52 openbsd a3b8ef658ea4 bc5434be .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/09 12:32 openbsd bc6284487636 bc5434be .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/09 12:29 openbsd bc6284487636 bc5434be .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/08 23:22 openbsd c01ef8ee1288 bc5434be .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/08 10:10 openbsd fc11865a1bba bc5434be .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/07 20:51 openbsd d34695b63e65 bc5434be .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/07 17:38 openbsd d16e26e779aa f6da8120 .config log report witness: reversal: lock order data missing
ci-openbsd-setuid 2021/05/07 04:45 openbsd 67a9c8684e25 06585184 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/07 03:32 openbsd 19eaa4ad92cd 06585184 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/06 15:39 openbsd 19eaa4ad92cd 06585184 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/06 06:56 openbsd 2f4e7cfa05a8 06c27ff5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/06 05:31 openbsd 2f4e7cfa05a8 06c27ff5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/05 16:15 openbsd 68b10e9feb49 06c27ff5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/05 06:59 openbsd 3356529948a2 06c27ff5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/05 03:07 openbsd 3356529948a2 06c27ff5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/05 03:02 openbsd 3356529948a2 06c27ff5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/04 13:51 openbsd 4dcbda623f70 06c27ff5 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/03 13:56 openbsd 06b6ba58f717 ad61f371 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/03 05:02 openbsd d230494623c0 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/02 22:33 openbsd 891dfedc2606 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/02 15:52 openbsd 891dfedc2606 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/02 15:51 openbsd 891dfedc2606 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/02 02:31 openbsd c29afb189edb 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/01 13:20 openbsd ffd633964d3c 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/05/01 00:01 openbsd 155a0ed0ec01 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/04/30 10:44 openbsd ae630881eacb 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-setuid 2021/04/30 08:15 openbsd 0f1536e80592 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/04/29 21:22 openbsd 0f1536e80592 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/04/29 21:21 openbsd 0f1536e80592 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/04/29 08:10 openbsd 407d883bd54d 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/04/28 18:55 openbsd e0ec952ccfe8 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-setuid 2021/04/28 05:25 openbsd 81367ccf7be2 77e2b668 .config log report witness: reversal: lock order data missing
ci-openbsd-multicore 2021/03/04 16:28 openbsd 6f079c3dcc0d f89ed068 .config log report witness: reversal: lock order data missing