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: 107d, last: now

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 (155024):
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 2021/07/25 09:26 upstream 6498f6151825 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/25 06:05 upstream 6498f6151825 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/25 04:58 upstream 6498f6151825 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/25 03:35 upstream 6498f6151825 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/24 22:57 upstream f0fddcec6b62 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/24 14:51 upstream f0fddcec6b62 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/24 13:34 upstream f0fddcec6b62 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/24 07:10 upstream 8baef6386baa bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/24 02:16 upstream 8baef6386baa bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/24 02:10 upstream 8baef6386baa bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/24 00:57 upstream 8baef6386baa bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/23 22:14 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/23 18:03 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/23 15:23 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-qemu-upstream 2021/07/23 14:03 upstream 8baef6386baa bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/23 11:26 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/23 06:46 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-root 2021/07/23 05:38 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-smack-root 2021/07/23 02:54 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-qemu-upstream 2021/07/23 01:53 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-kasan-gce-selinux-root 2021/07/22 21:34 upstream 3d5895cd3517 302e51de .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 2021/07/23 19:05 upstream 8baef6386baa bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-qemu-upstream-386 2021/07/23 13:02 upstream 8baef6386baa bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-qemu-upstream-386 2021/07/22 23:41 upstream 9bead1b58c4c bc5f1d88 .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 2021/07/25 16:58 net 89bc7f456cd4 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/25 13:41 net 89bc7f456cd4 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/25 12:32 net 89bc7f456cd4 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/25 02:35 net 89bc7f456cd4 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/25 01:11 net 5aa1959d1800 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/24 20:00 net 5aa1959d1800 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/24 15:54 net 5aa1959d1800 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/24 12:14 net 5aa1959d1800 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/24 11:10 net 5aa1959d1800 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/24 10:42 net 5aa1959d1800 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/24 04:38 net d72e91efcae1 bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/23 23:53 net d72e91efcae1 bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/23 23:16 net d72e91efcae1 bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/23 21:11 net 9f42f674a892 bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/23 16:48 net 9f42f674a892 bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-net-this-kasan-gce 2021/07/23 03:56 net 9f42f674a892 bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/25 18:45 net-next c5381154393d 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/25 18:02 net-next c5381154393d 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/25 15:51 net-next c5381154393d 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/25 11:17 net-next c5381154393d 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/25 07:07 net-next c5381154393d 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/24 21:13 net-next facfbf4f0b5a 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-net-kasan-gce 2021/07/24 08:59 net-next 090597b4a9c1 bc5f1d88 .config log report info possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/07/25 14:46 linux-next 90d856e71443 4d1b57d4 .config log report info possible deadlock in del_gendisk
ci-upstream-linux-next-kasan-gce-root 2021/07/25 14:46 linux-next 90d856e71443 4d1b57d4 .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