syzbot


BUG: workqueue lockup (5)
Status: upstream: reported C repro on 2020/01/14 22:04
Reported-by: syzbot+f0b66b520b54883d4b9d@syzkaller.appspotmail.com
First crash: 420d, last: 8d08h

Cause bisection: introduced by (bisect log) :
commit ebe02de2c60caa3ee5a1b39c7c8b2a40e1fda2d8
Author: Himanshu Jha <himanshujha199640@gmail.com>
Date: Tue Aug 29 13:12:27 2017 +0000

  drm/amd/powerplay/hwmgr: Remove null check before kfree

Crash: WARNING in __x86_set_memory_region (log)
Repro: C syz .config
similar bugs (8):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: workqueue lockup (4) C 47 475d 881d 16/21 fixed on 2019/12/13 00:31
upstream BUG: workqueue lockup (2) C 406 1031d 1189d 6/21 fixed on 2018/05/13 10:02
linux-4.14 BUG: workqueue lockup C 176 21h20m 677d 0/1 upstream: reported C repro on 2019/04/29 11:26
upstream BUG: workqueue lockup C 172 1212d 1222d 3/21 fixed on 2017/11/11 01:37
upstream BUG: workqueue lockup (3) C 1215 975d 1028d 9/21 fixed on 2018/07/09 18:05
android-414 BUG: workqueue lockup C 114 540d 696d 0/1 public: reported C repro on 2019/04/11 00:00
linux-4.19 BUG: workqueue lockup C 17 23d 684d 0/1 upstream: reported C repro on 2019/04/22 20:37
android-49 BUG: workqueue lockup C 69 464d 695d 0/3 public: reported C repro on 2019/04/11 08:44

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/11/07 07:20 upstream 659caaf6 917afeaa .config log report syz C
Crashes (74):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/06/30 23:05 upstream 9ebcfadb 917afeaa .config log report syz C
ci-upstream-kasan-gce-root 2020/05/28 09:58 upstream b0c3ba31 142a0957 .config log report syz C
ci-upstream-kasan-gce-root 2020/04/25 09:57 upstream b4f63322 03d97a1b .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/04/23 14:14 upstream c578ddb3 2e44d63e .config log report syz C
ci-upstream-kasan-gce-root 2020/04/20 11:02 upstream 0fe5f9ca 9f7c6d12 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/04/11 07:30 upstream ab6f762f a8c6a3f8 .config log report syz C
ci-upstream-kasan-gce-root 2020/03/30 06:09 upstream e595dd94 05736b29 .config log report syz C
ci-upstream-kasan-gce-root 2020/03/21 03:54 upstream 6c90b86a 2c31c529 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/03/18 10:52 upstream ac309e77 97bc55ce .config log report syz C
ci-upstream-kasan-gce-root 2020/03/15 15:46 upstream d3dca690 749688d2 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/15 02:29 upstream 69a4d0ba 749688d2 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/03/09 04:58 upstream 61a09258 2e9971bb .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/03/08 11:08 upstream c2003765 2e9971bb .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/04 12:59 upstream 63623fd4 c88c7b75 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/16 00:48 upstream 829e6944 5d7b90f1 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/13 10:03 upstream f2850dd5 84f4fc8a .config log report syz C
ci-upstream-kasan-gce 2020/02/13 06:50 upstream f2850dd5 84f4fc8a .config log report syz C
ci-upstream-kasan-gce 2020/02/09 19:08 upstream fdfa3a67 6ece2ea5 .config log report syz C
ci-upstream-kasan-gce-root 2020/01/11 06:19 upstream e69ec487 4de4e9f0 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/05/11 04:15 linux-next ac935d22 8742a2b9 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/04/10 12:45 linux-next 0434e521 a8c6a3f8 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/03/31 08:39 linux-next 770fbb32 c8d1cc20 .config log report syz C
ci2-upstream-usb 2020/03/23 03:12 https://github.com/google/kasan.git usb-fuzzer e17994d1 78267cec .config log report syz C
ci2-upstream-usb 2020/03/20 10:39 https://github.com/google/kasan.git usb-fuzzer e17994d1 2c31c529 .config log report syz C
ci-qemu-upstream 2021/02/26 10:54 upstream 2c87f7a3 4c37c133 .config log report info BUG: workqueue lockup
ci-qemu-upstream 2021/02/02 23:07 upstream 3aaf0a27 624dad51 .config log report info BUG: workqueue lockup
ci-qemu-upstream 2021/02/02 16:13 upstream 88bb507a 19e09687 .config log report info BUG: workqueue lockup
ci-qemu-upstream 2021/01/30 01:55 upstream bec4c296 fc9fd31e .config log report info BUG: workqueue lockup
ci-qemu-upstream 2021/01/28 09:13 upstream 76c057c8 eefc07f2 .config log report info BUG: workqueue lockup
ci-qemu-upstream-386 2021/02/02 18:45 upstream 88bb507a 19e09687 .config log report info BUG: workqueue lockup
ci-qemu-upstream-386 2021/02/02 05:42 upstream 88bb507a e6b95f32 .config log report info BUG: workqueue lockup
ci-qemu-upstream-386 2021/02/01 00:33 upstream 6642d600 fc9fd31e .config log report info BUG: workqueue lockup
ci-qemu-upstream-386 2021/01/30 18:07 upstream 0e9bcda5 fc9fd31e .config log report info BUG: workqueue lockup
ci-upstream-bpf-kasan-gce 2021/02/26 18:58 bpf 557c223b 4c37c133 .config log report info BUG: workqueue lockup
ci-upstream-kasan-gce 2021/01/17 02:30 upstream 0da0a8a0 65a7a854 .config log report info
ci-upstream-kasan-gce 2021/01/16 01:20 upstream 5ee88057 65a7a854 .config log report info
ci-upstream-kasan-gce 2020/12/27 03:51 upstream f838f8d2 821e0b09 .config log report info
ci-upstream-kasan-gce-root 2020/12/08 23:38 upstream 7d8761ba a7f7f4a4 .config log report info
ci-qemu-upstream 2020/11/15 18:12 upstream e28c0d7c 1bf9a662 .config log report info
ci-qemu-upstream 2020/09/07 18:30 upstream fffe3ae0 abf9ba4f .config log report
ci-qemu-upstream 2020/08/24 17:00 upstream fffe3ae0 67b599d1 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/24 03:38 upstream d15be546 70c104a1 .config log report
ci-upstream-kasan-gce 2020/07/20 17:19 upstream 5714ee50 4285ffa3 .config log report
ci-upstream-kasan-gce 2020/07/03 04:11 upstream cd77006e bed10395 .config log report
ci-upstream-kasan-gce 2020/07/01 13:30 upstream 7c30b859 39acb39d .config log report
ci-qemu-upstream 2020/06/05 09:23 upstream 15a2bc4d 2420d1bc .config log report
ci-upstream-kasan-gce-selinux-root 2020/05/29 12:14 upstream 75caf310 d19ed305 .config log report
ci-upstream-kasan-gce-root 2020/05/29 12:03 upstream 75caf310 d19ed305 .config log report
ci-upstream-kasan-gce-smack-root 2020/04/25 07:46 upstream b4f63322 03d97a1b .config log report
ci-upstream-kasan-gce-selinux-root 2020/04/11 01:34 upstream ab6f762f a8c6a3f8 .config log report
ci-upstream-kasan-gce-root 2020/02/03 22:56 upstream 754beeec 93e5e335 .config log report
ci-upstream-kasan-gce-smack-root 2020/01/20 05:02 upstream 8f8972a3 0342f8c7 .config log report
ci-upstream-kasan-gce-root 2020/01/14 12:16 upstream b3a987b0 32881205 .config log report
ci-qemu-upstream-386 2020/08/01 10:22 upstream 7dc6fd0f d895b3be .config log report
ci-upstream-kasan-gce-386 2020/07/28 12:28 upstream 92ed3019 cb93dc6a .config log report
ci-qemu-upstream-386 2020/05/20 21:34 upstream 115a5416 1255f02a .config log report
ci-upstream-bpf-kasan-gce 2020/12/27 20:36 bpf a61daaf3 2242f77f .config log report info
ci-upstream-bpf-kasan-gce 2020/12/22 22:53 bpf e7e51805 04201c06 .config log report info
ci-upstream-bpf-kasan-gce 2020/09/30 03:56 bpf 9cf51446 5abc3f1a .config log report info
ci-upstream-bpf-next-kasan-gce 2021/01/12 02:23 bpf-next e22d7f05 2c1f2513 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/12/15 14:55 bpf-next 0e12c027 97183ed7 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/12/03 11:12 bpf-next 97306be4 e6b0d314 .config log report info
ci-upstream-net-kasan-gce 2020/10/08 05:33 net-next 9faebeb2 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/09/30 08:24 net-next 28009571 5abc3f1a .config log report info
ci-upstream-net-kasan-gce 2020/09/29 02:05 net-next bcbf1be0 1b88c6d5 .config log report info
ci-upstream-net-kasan-gce 2020/09/26 13:32 net-next 6fba737a 2d5ea0cb .config log report info
ci-upstream-net-kasan-gce 2020/09/24 10:14 net-next 1a26e88d 54289b08 .config log report info
ci-upstream-net-kasan-gce 2020/09/23 15:11 net-next 748d1c8a 287cd75a .config log report info
ci-upstream-net-kasan-gce 2020/09/21 03:22 net-next 3cec0369 9564d2e9 .config log report info
ci-upstream-net-kasan-gce 2020/09/16 04:19 net-next 0f9ad4e7 18d7d030 .config log report info
ci-upstream-net-kasan-gce 2020/09/15 09:43 net-next ed6d9b02 6989d6f6 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/09/17 10:25 linux-next 5fa35f24 8247808b .config log report info