syzbot


INFO: task hung in nbd_ioctl
Status: fixed on 2019/11/06 12:39
Reported-by: syzbot+24c12fa8d218ed26011a@syzkaller.appspotmail.com
Fix commit: cf1b2326b734 nbd: verify socket is supported during setup
First crash: 754d, last: 682d

Cause bisection: introduced by (bisect log) :
commit e9e006f5fcf2bab59149cb38a48a4817c1b538b4
Author: Mike Christie <mchristi@redhat.com>
Date: Sun Aug 4 19:10:06 2019 +0000

  nbd: fix max number of supported devs

Crash: INFO: task hung in nbd_ioctl (log)
Repro: C syz .config
similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 INFO: task hung in nbd_ioctl C done 18 630d 704d 1/1 fixed on 2019/12/28 10:32
linux-4.14 INFO: task hung in nbd_ioctl (2) C done 16 377d 623d 1/1 fixed on 2020/10/21 11:01
upstream INFO: task hung in nbd_ioctl (2) 37 385d 438d 17/22 fixed on 2020/09/25 01:17
linux-4.19 INFO: task hung in nbd_ioctl C 53 22d 706d 0/1 upstream: reported C repro on 2019/10/12 13:11
upstream INFO: task hung in nbd_ioctl (3) C done unreliable 11 6d17h 354d 0/22 upstream: reported C repro on 2020/09/28 07:17
linux-4.14 INFO: task hung in nbd_ioctl (3) C 7 4d18h 308d 0/1 upstream: reported C repro on 2020/11/13 07:37

Sample crash report:

Crashes (71):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2019/10/22 14:19 upstream 3b7c59a1950c c59a7cd8 .config log report syz C
ci-upstream-kasan-gce-root 2019/10/06 18:52 upstream 43b815c6a8e7 f3f7d9c8 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/09/28 00:50 linux-next bb2aee77c82d d8074e0b .config log report syz C
ci-upstream-kasan-gce-root 2019/11/05 08:34 upstream a99d8080aaf3 76630fc9 .config log report
ci-upstream-kasan-gce-root 2019/10/30 11:27 upstream 23fdb198ae81 5ea87a66 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/26 04:20 upstream 8caacaad78b6 c2e837da .config log report
ci-upstream-kasan-gce-root 2019/10/25 22:34 upstream 39a38bcba4ab c2e837da .config log report
ci-upstream-kasan-gce-smack-root 2019/10/25 09:09 upstream 39a38bcba4ab d01bb02a .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/22 08:11 upstream 7d194c2100ad c59a7cd8 .config log report
ci-upstream-kasan-gce-root 2019/10/21 07:15 upstream 4fe34d61a3a9 8c88c9c1 .config log report
ci-upstream-kasan-gce-smack-root 2019/10/19 12:01 upstream b9959c7a347d 8c88c9c1 .config log report
ci-upstream-kasan-gce-root 2019/10/19 10:01 upstream b9959c7a347d 8c88c9c1 .config log report
ci-upstream-kasan-gce-root 2019/10/18 19:06 upstream 0e2adab6cf28 8c88c9c1 .config log report
ci-upstream-kasan-gce-smack-root 2019/10/18 06:56 upstream 283ea345934d 8c88c9c1 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/17 07:56 upstream bc88f85c6c09 8c88c9c1 .config log report
ci-upstream-kasan-gce-smack-root 2019/10/16 16:06 upstream 3b1f00aceb7a d4ea592f .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/16 13:41 upstream 3b1f00aceb7a d4ea592f .config log report
ci-upstream-kasan-gce-root 2019/10/13 23:44 upstream da94001239cc 2f661ec4 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/12 04:54 upstream 9e208aa06c21 426631dd .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/11 13:00 upstream fb20da6af705 1a3bad90 .config log report
ci-upstream-kasan-gce-smack-root 2019/10/06 17:46 upstream 43b815c6a8e7 f3f7d9c8 .config log report
ci-upstream-kasan-gce-root 2019/10/06 11:13 upstream 43b815c6a8e7 f3f7d9c8 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/06 07:25 upstream 4ea655343ce4 f3f7d9c8 .config log report
ci-upstream-kasan-gce-smack-root 2019/10/06 06:53 upstream 4ea655343ce4 f3f7d9c8 .config log report
ci-upstream-kasan-gce-root 2019/10/05 04:29 upstream b145b0eb2031 f3f7d9c8 .config log report
ci-upstream-kasan-gce-smack-root 2019/10/05 02:43 upstream b145b0eb2031 f3f7d9c8 .config log report
ci-upstream-kasan-gce-root 2019/10/05 00:45 upstream b145b0eb2031 f3f7d9c8 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/04 11:09 upstream cc3a7bfe62b9 fc17ba49 .config log report
ci-upstream-kasan-gce-root 2019/10/02 21:31 upstream 54ecb8f7028c 2e29b534 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/01 22:33 upstream 54ecb8f7028c b7a87a83 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/01 04:46 upstream 54ecb8f7028c c7a4fb99 .config log report
ci-upstream-kasan-gce-smack-root 2019/09/30 21:54 upstream 97f9a3c4eee5 c7a4fb99 .config log report
ci-upstream-kasan-gce-selinux-root 2019/09/29 13:06 upstream 02dc96ef6c25 c1ad5441 .config log report
ci-upstream-kasan-gce-smack-root 2019/09/27 06:04 upstream cbafe18c7102 2f1548bc .config log report
ci-upstream-kasan-gce-root 2019/09/24 06:19 upstream e94f8ccde471 c68252d2 .config log report
ci-upstream-kasan-gce-selinux-root 2019/09/22 18:31 upstream f7c3bf8fa7e5 d96e88f3 .config log report
ci-upstream-kasan-gce-root 2019/09/21 22:53 upstream 227c3e9eb5cf d96e88f3 .config log report
ci-upstream-kasan-gce-selinux-root 2019/09/18 19:17 upstream 35f7a9526615 c2dcd700 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/18 13:32 linux-next c4b9850b3676 8c88c9c1 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/16 05:05 linux-next 0e9d28bc6c81 d4ea592f .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/14 04:58 linux-next 8ada228ac7ed 2f661ec4 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/13 08:05 linux-next 8ada228ac7ed 426631dd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/13 04:43 linux-next 8ada228ac7ed 426631dd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/10 13:35 linux-next 4a9e93dbc796 a4efa8c0 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/07 04:08 linux-next 311ef88adfa3 f3f7d9c8 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/06 11:57 linux-next 311ef88adfa3 f3f7d9c8 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/06 11:03 linux-next 311ef88adfa3 f3f7d9c8 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/27 20:39 linux-next bb2aee77c82d d8074e0b .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/21 20:17 linux-next b5b3bd898ba9 d96e88f3 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/14 22:03 linux-next 6d028043b55e 32d59357 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/14 18:57 linux-next 6d028043b55e 32d59357 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/14 13:46 linux-next 6d028043b55e 32d59357 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/12 22:46 linux-next 6d028043b55e 0b7672ee .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/12 07:08 linux-next 6d028043b55e f4e53c10 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/11 19:02 linux-next 6d028043b55e a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/11 01:56 linux-next 6d028043b55e a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/10 02:10 linux-next 6d028043b55e a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/08 20:33 linux-next 6d028043b55e a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/07 22:12 linux-next 6d028043b55e a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/07 02:23 linux-next 6d028043b55e a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/06 08:08 linux-next 6d028043b55e 040fda58 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/08/30 12:49 linux-next ed2393ca0910 fd37b39e .config log report
ci-upstream-linux-next-kasan-gce-root 2019/08/30 03:54 linux-next ed2393ca0910 fd37b39e .config log report
ci-upstream-linux-next-kasan-gce-root 2019/08/30 01:52 linux-next ed2393ca0910 fd37b39e .config log report
ci-upstream-linux-next-kasan-gce-root 2019/08/24 20:16 linux-next 9733a7c62c66 78ded196 .config log report