syzbot


WARNING in enable_work

Status: upstream: reported C repro on 2024/08/21 10:14
Subsystems: usb pm
[Documentation on labels]
Reported-by: syzbot+7053fbd8757fecbbe492@syzkaller.appspotmail.com
First crash: 466d, last: 12m
Cause bisection: failed (error log, bisect log)
  
Discussions (25)
Title Replies (including bot) Last reply
[syzbot] Monthly input report (Nov 2025) 0 (1) 2025/11/17 07:50
[syzbot] Monthly usb report (Oct 2025) 0 (1) 2025/10/27 05:54
[syzbot] Monthly input report (Oct 2025) 0 (1) 2025/10/16 08:36
[syzbot] Monthly pm report (Oct 2025) 0 (1) 2025/10/07 07:53
[syzbot] Monthly usb report (Sep 2025) 0 (1) 2025/09/24 12:39
[syzbot] Monthly input report (Sep 2025) 0 (1) 2025/09/15 06:53
[syzbot] Monthly pm report (Sep 2025) 0 (1) 2025/09/03 21:54
[syzbot] Monthly usb report (Aug 2025) 0 (1) 2025/08/25 08:44
[syzbot] Monthly input report (Aug 2025) 0 (1) 2025/08/14 12:42
[syzbot] Monthly usb report (Jul 2025) 0 (1) 2025/07/24 09:33
[syzbot] Monthly input report (Jul 2025) 0 (1) 2025/07/14 07:23
[syzbot] Monthly usb report (Jun 2025) 0 (1) 2025/06/23 07:31
[syzbot] Monthly pm report (Jun 2025) 0 (1) 2025/06/17 07:53
[syzbot] Monthly input report (Jun 2025) 0 (1) 2025/06/13 12:25
[syzbot] Monthly input report (May 2025) 0 (1) 2025/05/12 13:34
[syzbot] Monthly input report (Apr 2025) 0 (1) 2025/04/09 07:11
[syzbot] Monthly input report (Mar 2025) 0 (1) 2025/03/08 22:15
[syzbot] Monthly pm report (Feb 2025) 0 (1) 2025/02/21 09:41
[syzbot] Monthly input report (Feb 2025) 0 (1) 2025/02/05 12:43
[syzbot] Monthly pm report (Jan 2025) 0 (1) 2025/01/17 15:00
[syzbot] Monthly input report (Jan 2025) 0 (1) 2025/01/06 10:01
[syzbot] Monthly pm report (Oct 2024) 0 (1) 2024/10/28 08:24
[syzbot] Monthly pm report (Sep 2024) 0 (1) 2024/09/26 12:43
[syzbot] [pm?] WARNING in enable_work 0 (2) 2024/09/18 04:50
[syzbot] Monthly pm report (Aug 2024) 0 (1) 2024/08/26 13:47

Sample crash report:
------------[ cut here ]------------
workqueue: work disable count underflowed
WARNING: CPU: 1 PID: 6123 at kernel/workqueue.c:4355 work_offqd_enable kernel/workqueue.c:4355 [inline]
WARNING: CPU: 1 PID: 6123 at kernel/workqueue.c:4355 enable_work+0x2b1/0x2c0 kernel/workqueue.c:4526
Modules linked in:
CPU: 1 UID: 0 PID: 6123 Comm: kworker/1:8 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:work_offqd_enable kernel/workqueue.c:4355 [inline]
RIP: 0010:enable_work+0x2b1/0x2c0 kernel/workqueue.c:4526
Code: 41 5e 41 5f 5d e9 cf d0 be 09 cc e8 09 ed bb 09 e8 b4 b2 35 00 c6 05 cf 93 dc 0d 01 90 48 c7 c7 c0 ef 69 8b e8 a0 cc f8 ff 90 <0f> 0b 90 90 e9 69 ff ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc90002f87040 EFLAGS: 00010046
RAX: 7b557e768892d500 RBX: ffff888023fd4738 RCX: ffff888029c90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc90002f870f8 R08: ffff8880b8924293 R09: 1ffff11017124852
R10: dffffc0000000000 R11: ffffed1017124853 R12: 1ffff920005f0e0c
R13: dffffc0000000000 R14: 0000000000000000 R15: 001fffffffc00001
FS:  0000000000000000(0000) GS:ffff88812623d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c007efb000 CR3: 00000000411e0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __cancel_work_sync+0xf7/0x110 kernel/workqueue.c:4396
 thermal_zone_device_unregister+0x23e/0x3f0 drivers/thermal/thermal_core.c:1719
 psy_unregister_thermal drivers/power/supply/power_supply_core.c:1551 [inline]
 power_supply_unregister+0xf9/0x140 drivers/power/supply/power_supply_core.c:1767
 thunderstrike_destroy drivers/hid/hid-nvidia-shield.c:927 [inline]
 shield_remove+0x72/0x120 drivers/hid/hid-nvidia-shield.c:1104
 hid_device_remove+0x228/0x370 drivers/hid/hid-core.c:-1
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1274 [inline]
 device_release_driver_internal+0x46f/0x800 drivers/base/dd.c:1297
 bus_remove_device+0x34d/0x410 drivers/base/bus.c:579
 device_del+0x511/0x8e0 drivers/base/core.c:3878
 hid_remove_device drivers/hid/hid-core.c:3008 [inline]
 hid_destroy_device+0x6b/0x1b0 drivers/hid/hid-core.c:3030
 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1462
 usb_unbind_interface+0x26e/0x910 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:571 [inline]
 __device_release_driver drivers/base/dd.c:1274 [inline]
 device_release_driver_internal+0x4d9/0x800 drivers/base/dd.c:1297
 bus_remove_device+0x34d/0x410 drivers/base/bus.c:579
 device_del+0x511/0x8e0 drivers/base/core.c:3878
 usb_disable_device+0x3e9/0x8a0 drivers/usb/core/message.c:1418
 usb_disconnect+0x330/0x950 drivers/usb/core/hub.c:2344
 hub_port_connect drivers/usb/core/hub.c:5406 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5706 [inline]
 port_event drivers/usb/core/hub.c:5870 [inline]
 hub_event+0x1cf5/0x4a20 drivers/usb/core/hub.c:5952
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (1068):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/05 05:39 upstream 17d85f33a83b a6c9c731 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/05 05:23 upstream c9cfc122f037 a6c9c731 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/10/25 14:47 upstream 566771afc7a8 c0460fcd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/10/15 12:27 upstream 9b332cece987 b6605ba8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/06/04 13:07 upstream 5abc7438f1e9 a30356b7 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/06/03 09:47 upstream 546b1c9e93c2 b396b4bf .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2024/12/09 12:47 upstream fac04efc5c79 9ac0fdc6 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/09/19 13:14 upstream 097a6c336d00 67c37560 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/06/12 17:26 upstream 2c4a1f3fe03e 98683f8f .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2024/12/30 05:05 upstream 4099a71718b0 d3ccff63 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2024/10/03 03:27 upstream f23aa4c0761a a4c7fd36 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in enable_work
2024/09/18 04:49 upstream a940d9a43e62 c673ca06 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/09/29 08:59 linux-next 262858079afd 001c9061 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in enable_work
2025/09/14 09:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8736259279a3 e2beed91 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in enable_work
2025/08/01 09:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 82af5ea7c611 0c075d67 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in enable_work
2025/11/24 11:16 upstream ac3fd01e4c1e 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/24 10:04 upstream d0e88704d96c 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/22 04:12 upstream fd95357fd8c6 c31c1b0b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/21 09:18 upstream fd95357fd8c6 280ea308 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/21 07:01 upstream 8e621c9a3375 280ea308 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in enable_work
2025/11/18 10:07 upstream e7c375b18160 ef766cd7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/18 07:00 upstream e7c375b18160 ef766cd7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/17 17:41 upstream 6a23ae0a96a6 ef766cd7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/16 13:56 upstream f824272b6e3f f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/16 12:56 upstream f824272b6e3f f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/15 20:11 upstream f824272b6e3f f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/13 08:25 upstream e927c520e1ba 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/13 01:26 upstream 24172e0d7990 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/12 20:10 upstream 24172e0d7990 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/11 23:18 upstream 24172e0d7990 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in enable_work
2025/11/08 18:42 upstream e811c33b1f13 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/11/07 19:04 upstream 4a0c9b339199 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/07 08:12 upstream c2c2ccfd4ba7 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/07 06:00 upstream c2c2ccfd4ba7 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/11/06 20:04 upstream c2c2ccfd4ba7 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/10/30 21:21 upstream e53642b87a4f 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/10/30 16:20 upstream e53642b87a4f fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/10/29 19:46 upstream e53642b87a4f fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in enable_work
2025/10/25 05:36 upstream 566771afc7a8 c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in enable_work
2024/08/17 10:09 upstream e5fa841af679 dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in enable_work
2025/11/26 15:31 upstream 30f09200cc4a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in enable_work
2025/11/20 18:52 upstream 23cb64fb7625 280ea308 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in enable_work
2025/11/20 01:24 upstream 23cb64fb7625 26ee5237 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in enable_work
2025/11/19 23:55 upstream 23cb64fb7625 26ee5237 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/19 21:13 upstream 23cb64fb7625 26ee5237 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/12 01:50 upstream 24172e0d7990 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/11 10:44 upstream 4427259cc7f7 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/10 22:28 upstream 4ea7c1717f3f 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/10 18:38 upstream 4ea7c1717f3f 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/09 09:15 upstream 7bb4d6512545 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/08 20:50 upstream e811c33b1f13 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/07 22:41 upstream da32d155f4a8 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/06 05:25 upstream dc77806cf3b4 a6c9c731 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/02 14:26 upstream 691d401c7e0e 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/10/28 21:52 upstream fd57572253bc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/11/25 17:34 upstream 8a2bcda5e139 64219f15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/25 06:16 upstream ac3fd01e4c1e 64219f15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/22 18:03 upstream 2eba5e05d9bc 4fb8ef37 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/20 09:53 upstream 23cb64fb7625 2cc4c24a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/19 19:13 upstream 23cb64fb7625 26ee5237 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/16 07:23 upstream f824272b6e3f f7988ea4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/13 03:39 upstream e927c520e1ba 07e030de .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/12 04:10 upstream 24172e0d7990 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/10 17:00 upstream e9a6fb0bcdd7 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/09 22:38 upstream 439fc29dfd3b 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/08 04:27 upstream da32d155f4a8 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/07 14:32 upstream 4a0c9b339199 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/06 15:53 upstream dc77806cf3b4 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/01 06:42 upstream ba36dd5ee6fd 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/10/31 03:59 upstream d127176862a9 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/10/29 01:14 upstream 8eefed8f65cc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/11/24 06:49 linux-next d724c6f85e80 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in enable_work
2025/11/24 01:35 linux-next d724c6f85e80 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in enable_work
2025/11/07 02:10 linux-next df5d79720b15 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in enable_work
2025/10/06 03:35 linux-next 47a8d4b89844 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in enable_work
* Struck through repros no longer work on HEAD.