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: 496d, last: 27m
Cause bisection: failed (error log, bisect log)
  
Discussions (27)
Title Replies (including bot) Last reply
[syzbot] Monthly pm report (Dec 2025) 0 (1) 2025/12/22 02:03
[syzbot] Monthly usb report (Nov 2025) 0 (1) 2025/11/27 12:43
[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:
usb 1-1: USB disconnect, device number 80
------------[ cut here ]------------
workqueue: work disable count underflowed
WARNING: kernel/workqueue.c:4359 at work_offqd_enable kernel/workqueue.c:4359 [inline], CPU#1: kworker/1:0/24
WARNING: kernel/workqueue.c:4359 at enable_work+0x273/0x2b0 kernel/workqueue.c:4530, CPU#1: kworker/1:0/24
Modules linked in:
CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:work_offqd_enable kernel/workqueue.c:4359 [inline]
RIP: 0010:enable_work+0x273/0x2b0 kernel/workqueue.c:4530
Code: 5b 41 5c 41 5d 41 5e 41 5f 5d e9 e3 2c 85 ff cc e8 22 9e 36 00 90 0f 0b 90 e9 54 fe ff ff e8 14 9e 36 00 48 8d 3d 7d f6 f9 0d <67> 48 0f b9 3a 45 31 e4 e9 67 fe ff ff e8 fb 9d 36 00 90 0f 0b 90
RSP: 0018:ffffc900001e7020 EFLAGS: 00010093
RAX: ffffffff818b143c RBX: dffffc0000000000 RCX: ffff88801c6e0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f850ac0
RBP: ffffc900001e70d8 R08: ffff8880317e473f R09: 1ffff110062fc8e7
R10: dffffc0000000000 R11: ffffed10062fc8e8 R12: 0000000000000000
R13: 1ffff110062fc8e7 R14: ffff8880317e4738 R15: 001fffffffc00001
FS:  0000000000000000(0000) GS:ffff888125f35000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb12db72100 CR3: 000000005c4e8000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __cancel_work_sync+0xf7/0x110 kernel/workqueue.c:4400
 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:1282 [inline]
 device_release_driver_internal+0x46f/0x800 drivers/base/dd.c:1305
 bus_remove_device+0x34d/0x440 drivers/base/bus.c:616
 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:1282 [inline]
 device_release_driver_internal+0x4d9/0x800 drivers/base/dd.c:1305
 bus_remove_device+0x34d/0x440 drivers/base/bus.c:616
 device_del+0x511/0x8e0 drivers/base/core.c:3878
 usb_disable_device+0x3d4/0x8e0 drivers/usb/core/message.c:1418
 usb_disconnect+0x32f/0x990 drivers/usb/core/hub.c:2345
 hub_port_connect drivers/usb/core/hub.c:5407 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x1ca9/0x4ef0 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
----------------
Code disassembly (best guess):
   0:	5b                   	pop    %rbx
   1:	41 5c                	pop    %r12
   3:	41 5d                	pop    %r13
   5:	41 5e                	pop    %r14
   7:	41 5f                	pop    %r15
   9:	5d                   	pop    %rbp
   a:	e9 e3 2c 85 ff       	jmp    0xff852cf2
   f:	cc                   	int3
  10:	e8 22 9e 36 00       	call   0x369e37
  15:	90                   	nop
  16:	0f 0b                	ud2
  18:	90                   	nop
  19:	e9 54 fe ff ff       	jmp    0xfffffe72
  1e:	e8 14 9e 36 00       	call   0x369e37
  23:	48 8d 3d 7d f6 f9 0d 	lea    0xdf9f67d(%rip),%rdi        # 0xdf9f6a7
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	45 31 e4             	xor    %r12d,%r12d
  32:	e9 67 fe ff ff       	jmp    0xfffffe9e
  37:	e8 fb 9d 36 00       	call   0x369e37
  3c:	90                   	nop
  3d:	0f 0b                	ud2
  3f:	90                   	nop

Crashes (1190):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/20 09:39 upstream dd9b004b7ff3 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in enable_work
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
2025/12/13 10:18 linux-next d9771d0dbe18 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in enable_work
2025/09/29 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
2025/12/26 21:06 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/12/26 03:59 upstream ccd1cdca5cd4 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/12/18 19:36 upstream ea1013c15392 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in enable_work
2025/12/18 01:52 upstream ea1013c15392 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/12/17 08:03 upstream ea1013c15392 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in enable_work
2025/12/15 10:51 upstream 8f0b4cce4481 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in enable_work
2025/12/09 01:26 upstream a110f942672c d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-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
2025/12/21 07:47 upstream d8ba32c5a460 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in enable_work
2025/12/24 22:17 upstream ccd1cdca5cd4 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/24 15:23 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/24 05:40 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/24 02:35 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/23 21:34 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/23 15:55 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/23 07:45 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/23 06:11 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/22 09:18 upstream 765b233a9b94 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/22 06:46 upstream 765b233a9b94 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/22 02:25 upstream 765b233a9b94 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/21 19:19 upstream 9094662f6707 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/21 17:40 upstream 9094662f6707 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/21 12:44 upstream 9094662f6707 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/21 09:11 upstream 9094662f6707 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/20 23:52 upstream d8ba32c5a460 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/20 09:28 upstream dd9b004b7ff3 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/20 05:05 upstream dd9b004b7ff3 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/19 18:48 upstream dd9b004b7ff3 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/19 17:29 upstream dd9b004b7ff3 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/19 05:23 upstream 516471569089 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/19 03:54 upstream 516471569089 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/16 22:30 upstream 40fbbd64bba6 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/16 14:25 upstream 40fbbd64bba6 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/16 07:12 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/15 23:54 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/15 15:21 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/15 06:02 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/14 21:32 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/14 19:38 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/14 08:24 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/13 19:44 upstream 9d9c1cfec01c d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in enable_work
2025/12/13 14:14 upstream 9551a26f17d9 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream 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
2025/12/24 13:31 upstream b927546677c8 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/21 01:09 upstream d8ba32c5a460 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/20 21:09 upstream d8ba32c5a460 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/20 19:27 upstream d8ba32c5a460 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/20 00:17 upstream dd9b004b7ff3 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/19 13:44 upstream dd9b004b7ff3 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/18 17:39 upstream ea1013c15392 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/18 12:27 upstream ea1013c15392 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/18 10:42 upstream ea1013c15392 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/18 05:17 upstream ea1013c15392 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/16 19:27 upstream 40fbbd64bba6 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/16 15:48 upstream 40fbbd64bba6 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/15 12:07 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in enable_work
2025/12/20 11:04 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in enable_work
2025/12/16 09:35 linux-next 4a5663c04bb6 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root 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
* Struck through repros no longer work on HEAD.