syzbot


possible deadlock in del_gendisk
Status: upstream: reported C repro on 2021/04/13 17:33
Reported-by: syzbot+61e04e51b7ac86930589@syzkaller.appspotmail.com
Fix commit: 990e78116d38 block: loop: fix deadlock between open and remove
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 111d, last: 16m

Cause bisection: introduced by (bisect log) :
commit 997acaf6b4b59c6a9c259740312a69ea549cc684
Author: Mark Rutland <mark.rutland@arm.com>
Date: Mon Jan 11 15:37:07 2021 +0000

  lockdep: report broken irq restoration

Crash: WARNING in kvm_wait (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2021/06/15 05:41 18m penguin-kernel@i-love.sakura.ne.jp upstream report log
2021/06/11 14:44 18m penguin-kernel@i-love.sakura.ne.jp patch upstream OK
2021/06/11 11:28 20m penguin-kernel@i-love.sakura.ne.jp patch upstream OK
2021/06/11 05:58 19m penguin-kernel@i-love.sakura.ne.jp patch upstream report log

Sample crash report:

Crashes (155333):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2021/07/01 13:36 upstream dbe69e433722 658ebc66 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/01 12:15 upstream dbe69e433722 658ebc66 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/06/21 05:02 upstream cba5e97280f5 aba2b2fb .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/06/10 13:55 upstream cd1245d75ce9 1ba81399 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/06/10 07:14 upstream cd1245d75ce9 1ba81399 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/06/09 18:19 upstream 368094df48e6 84fe5d96 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/06/09 06:20 upstream 4c8684fe555e 5c2fe346 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce 2021/06/08 20:25 upstream 614124bea77e b718257f .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce 2021/06/08 13:03 upstream 614124bea77e b718257f .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/06/07 19:42 upstream 614124bea77e e59537be .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce 2021/06/07 15:04 upstream 614124bea77e e59537be .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/06/05 02:52 upstream 16f0596fc1d7 966a236b .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/06/04 16:43 upstream f88cd3fb9df2 966a236b .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/06/04 07:19 upstream f88cd3fb9df2 0740de69 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/06/01 21:22 upstream c2131f7e73c9 032639db .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce 2021/06/01 19:06 upstream c2131f7e73c9 032639db .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/06/01 17:04 upstream c2131f7e73c9 032639db .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce 2021/06/01 11:41 upstream c2131f7e73c9 032639db .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/06/01 09:21 upstream c2131f7e73c9 032639db .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/05/31 17:29 upstream 8124c8a6b353 032639db .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/05/29 09:13 upstream 5ff2756afde0 858ea628 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/05/28 20:53 upstream 97e5bf604b7a 858ea628 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/05/28 18:04 upstream 97e5bf604b7a 858ea628 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-386 2021/06/11 05:06 upstream f09eacca59d2 1ba81399 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-386 2021/05/29 22:31 upstream 6799d4f2da49 325a8dab .config log report syz C possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/01 13:04 net dbe69e433722 658ebc66 .config log report syz C possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/01 12:44 net dbe69e433722 658ebc66 .config log report syz C possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/01 07:06 net dbe69e433722 38a885d1 .config log report syz C possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/01 06:49 net dbe69e433722 38a885d1 .config log report syz C possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/06/11 15:56 net 232e3683b4ee 1ba81399 .config log report syz C possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/01 07:23 net-next dbe69e433722 38a885d1 .config log report syz C possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/06/11 15:56 net-next 76cf404c40ae 1ba81399 .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/07/03 06:07 linux-next a1f92694393a 55aa55c2 .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/07/01 21:09 linux-next a1f92694393a 658ebc66 .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/06/25 20:19 linux-next a1f92694393a ae6bf8dd .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/06/21 20:28 linux-next a1f92694393a aba2b2fb .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/06/13 22:02 linux-next a1f92694393a 1ba81399 .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/06/10 12:14 linux-next a1f92694393a 1ba81399 .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/06/06 03:59 linux-next a1f92694393a 500c2339 .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/06/01 16:19 linux-next a1f92694393a 032639db .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/05/30 15:59 linux-next a1f92694393a 325a8dab .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/04/11 02:54 linux-next e99d8a849517 bfeda1b1 .config log report syz C possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/04/10 18:04 linux-next e99d8a849517 bfeda1b1 .config log report syz C possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/29 11:50 upstream 4010a528219e b44001ce .config log report info possible deadlock in del_gendisk
ci-qemu-upstream 2021/07/29 10:37 upstream 4010a528219e b44001ce .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/29 02:44 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/29 01:16 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/29 00:53 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/28 23:45 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/28 22:15 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/28 20:28 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/28 19:14 upstream 7d549995d4e0 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/28 09:15 upstream 7d549995d4e0 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/28 01:15 upstream 7d549995d4e0 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/28 00:08 upstream 7d549995d4e0 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/27 23:06 upstream 7d549995d4e0 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/27 21:50 upstream ff1176468d36 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/27 12:03 upstream ff1176468d36 fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/27 09:34 upstream ff1176468d36 fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/27 06:50 upstream ff1176468d36 fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/27 03:21 upstream ff1176468d36 fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/27 01:56 upstream ff1176468d36 fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/27 00:48 upstream ff1176468d36 fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce 2021/07/13 16:12 upstream 7fef2edf7cc7 fa0594c3 .config log report info possible deadlock in del_gendisk
ci-qemu-upstream-386 2021/07/29 05:38 upstream 4010a528219e b44001ce .config log report info possible deadlock in del_gendisk
ci-qemu-upstream-386 2021/07/28 16:50 upstream 7d549995d4e0 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-386 2021/06/13 03:55 upstream ad347abe4a98 1ba81399 .config log report info possible deadlock in del_gendisk
ci-qemu2-arm64 2021/06/12 03:57 upstream f21b807c3cf8 1ba81399 .config log report info possible deadlock in del_gendisk
ci-qemu2-arm64-compat 2021/06/12 03:27 upstream f21b807c3cf8 1ba81399 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/28 21:32 net 89fb62fde3b2 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/28 14:49 net 5e7b30d24a5b 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/28 12:21 net 5e7b30d24a5b 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/28 04:02 net 8373cd38a888 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/28 03:41 net 8373cd38a888 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/27 21:39 net 8373cd38a888 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/27 15:32 net 758684e49f4c fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/27 13:33 net 758684e49f4c fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/27 07:52 net 92766c4628ea fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/27 04:30 net 92766c4628ea fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/26 23:33 net 92766c4628ea fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/29 16:44 net-next 883d71a55e96 b44001ce .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/29 12:52 net-next 883d71a55e96 b44001ce .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/29 11:42 net-next 883d71a55e96 b44001ce .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/29 09:49 net-next b11f0a4c0c81 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/29 08:07 net-next b11f0a4c0c81 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/29 06:42 net-next b11f0a4c0c81 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/28 18:12 net-next 3bdc70669eb2 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/28 10:53 net-next 3bdc70669eb2 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/28 08:01 net-next 409f386b8e5d 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/28 06:56 net-next 409f386b8e5d 17d6ab15 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/27 20:38 net-next 409f386b8e5d fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/27 19:25 net-next 268ca4129d8d fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/27 13:59 net-next 268ca4129d8d fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/27 04:22 net-next 268ca4129d8d fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/26 22:20 net-next 9d32e4e7e9e1 fd511809 .config log report info possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/07/29 17:45 linux-next 4ccc9e2db7ac b44001ce .config log report info possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/07/29 13:50 linux-next 5a4cee98ea75 b44001ce .config log report info possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/07/29 04:16 linux-next 5a4cee98ea75 9a4781d4 .config log report info possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/04/09 17:27 linux-next e99d8a849517 6a81331a .config log report info possible deadlock in del_gendisk