syzbot


INFO: task hung in nbd_ioctl
Status: fixed on 2019/12/28 10:32
Reported-by: syzbot+51611e87a7e4efdbbee2@syzkaller.appspotmail.com
Fix commit: 4df728651b8a nbd: verify socket is supported during setup
First crash: 786d, last: 712d

Fix bisection: fixed by (bisect log) :
commit 4df728651b8a99693c69962d8e5a5b9e5a3bbcc7
Author: Mike Christie <mchristi@redhat.com>
Date: Thu Oct 17 21:27:34 2019 +0000

  nbd: verify socket is supported during setup

similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 INFO: task hung in nbd_ioctl (2) C done 16 459d 704d 1/1 fixed on 2020/10/21 11:01
upstream INFO: task hung in nbd_ioctl (2) 37 466d 519d 17/22 fixed on 2020/09/25 01:17
upstream INFO: task hung in nbd_ioctl C done 71 763d 799d 14/22 fixed on 2019/11/06 12:39
linux-4.19 INFO: task hung in nbd_ioctl C error 59 1d09h 787d 0/1 upstream: reported C repro on 2019/10/12 13:11
upstream INFO: task hung in nbd_ioctl (3) C done unreliable 12 28d 435d 0/22 upstream: reported C repro on 2020/09/28 07:17
linux-4.14 INFO: task hung in nbd_ioctl (3) C 9 19h38m 389d 0/1 upstream: reported C repro on 2020/11/13 07:37

Sample crash report:

Crashes (18):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2019/11/04 06:48 linux-4.14.y ddef1e8e3f6e b35fad31 .config log report syz C
ci2-linux-4-14 2019/10/29 12:56 linux-4.14.y ddef1e8e3f6e 5ea87a66 .config log report syz C
ci2-linux-4-14 2019/12/26 19:32 linux-4.14.y e1f7d50ae3a3 be5c2c81 .config log report
ci2-linux-4-14 2019/11/25 15:07 linux-4.14.y 43598c571e7e 598ca6c8 .config log report
ci2-linux-4-14 2019/11/02 13:48 linux-4.14.y ddef1e8e3f6e 997ccc67 .config log report
ci2-linux-4-14 2019/10/30 17:59 linux-4.14.y ddef1e8e3f6e 5ea87a66 .config log report
ci2-linux-4-14 2019/10/28 08:57 linux-4.14.y b98aebd29824 25bb509e .config log report
ci2-linux-4-14 2019/10/28 00:23 linux-4.14.y b98aebd29824 25bb509e .config log report
ci2-linux-4-14 2019/10/27 07:16 linux-4.14.y b98aebd29824 25bb509e .config log report
ci2-linux-4-14 2019/10/24 22:08 linux-4.14.y b98aebd29824 d01bb02a .config log report
ci2-linux-4-14 2019/10/20 17:27 linux-4.14.y b98aebd29824 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/18 10:13 linux-4.14.y b98aebd29824 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/18 08:31 linux-4.14.y b98aebd29824 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/16 03:35 linux-4.14.y e132c8d7b58d d4ea592f .config log report
ci2-linux-4-14 2019/10/15 09:03 linux-4.14.y e132c8d7b58d 05ad7292 .config log report
ci2-linux-4-14 2019/10/15 05:20 linux-4.14.y e132c8d7b58d 05ad7292 .config log report
ci2-linux-4-14 2019/10/14 17:07 linux-4.14.y e132c8d7b58d a6aef847 .config log report
ci2-linux-4-14 2019/10/13 22:27 linux-4.14.y e132c8d7b58d 2f661ec4 .config log report