Extracting prog: 3m14.672334431s
Minimizing prog: 7m23.457978988s
Simplifying prog options: 0s
Extracting C: 32.59595869s
Simplifying C: 9m38.772761637s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x48, &(0x7f0000000800)={{0x12, 0x1, 0x110, 0xa8, 0xa5, 0xaf, 0x20, 0x2040, 0xb900, 0xc159, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x36, 0x3, 0x7, 0x5, 0x60, 0xf, "", [{{0x9, 0x4, 0x7c, 0x23, 0x0, 0x53, 0x5c, 0x28, 0x2}}, {{0x9, 0x4, 0x0, 0xa3, 0x2, 0xda, 0x38, 0xad, 0xf2, [], [{{0x9, 0x5, 0x85, 0x2, 0x8, 0x6, 0xd, 0xc0}}, {{0x9, 0x5, 0x9, 0x14, 0x200, 0x8, 0x5, 0x7d}}]}}, {{0x9, 0x4, 0x34, 0x10, 0x0, 0x6, 0x81, 0x76, 0x6}}]}}]}}, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x48, &(0x7f0000000800)={{0x12, 0x1, 0x110, 0xa8, 0xa5, 0xaf, 0x20, 0x2040, 0xb900, 0xc159, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x36, 0x3, 0x7, 0x5, 0x60, 0xf, "", [{{0x9, 0x4, 0x7c, 0x23, 0x0, 0x53, 0x5c, 0x28, 0x2}}, {{0x9, 0x4, 0x0, 0xa3, 0x2, 0xda, 0x38, 0xad, 0xf2, [], [{{0x9, 0x5, 0x85, 0x2, 0x8, 0x6, 0xd, 0xc0}}, {{0x9, 0x5, 0x9, 0x14, 0x200, 0x8, 0x5, 0x7d}}]}}, {{0x9, 0x4, 0x34, 0x10, 0x0, 0x6, 0x81, 0x76, 0x6}}]}}]}}, 0x0)

program crashed: WARNING in usb_free_urb
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in usb_free_urb
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x48, &(0x7f0000000800)={{0x12, 0x1, 0x110, 0xa8, 0xa5, 0xaf, 0x20, 0x2040, 0xb900, 0xc159, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x36, 0x3, 0x7, 0x5, 0x60, 0xf, "", [{{0x9, 0x4, 0x7c, 0x23, 0x0, 0x53, 0x5c, 0x28, 0x2}}, {{0x9, 0x4, 0x0, 0xa3, 0x2, 0xda, 0x38, 0xad, 0xf2, [], [{{0x9, 0x5, 0x85, 0x2, 0x8, 0x6, 0xd, 0xc0}}, {{0x9, 0x5, 0x9, 0x14, 0x200, 0x8, 0x5, 0x7d}}]}}, {{0x9, 0x4, 0x34, 0x10, 0x0, 0x6, 0x81, 0x76, 0x6}}]}}]}}, 0x0)

program crashed: WARNING in usb_free_urb
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x48, &(0x7f0000000800)={{0x12, 0x1, 0x110, 0xa8, 0xa5, 0xaf, 0x20, 0x2040, 0xb900, 0xc159, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x36, 0x3, 0x7, 0x5, 0x60, 0xf, "", [{{0x9, 0x4, 0x7c, 0x23, 0x0, 0x53, 0x5c, 0x28, 0x2}}, {{0x9, 0x4, 0x0, 0xa3, 0x2, 0xda, 0x38, 0xad, 0xf2, [], [{{0x9, 0x5, 0x85, 0x2, 0x8, 0x6, 0xd, 0xc0}}, {{0x9, 0x5, 0x9, 0x14, 0x200, 0x8, 0x5, 0x7d}}]}}, {{0x9, 0x4, 0x34, 0x10, 0x0, 0x6, 0x81, 0x76, 0x6}}]}}]}}, 0x0)

program crashed: WARNING in usb_free_urb
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x48, &(0x7f0000000800)={{0x12, 0x1, 0x110, 0xa8, 0xa5, 0xaf, 0x20, 0x2040, 0xb900, 0xc159, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x36, 0x3, 0x7, 0x5, 0x60, 0xf, "", [{{0x9, 0x4, 0x7c, 0x23, 0x0, 0x53, 0x5c, 0x28, 0x2}}, {{0x9, 0x4, 0x0, 0xa3, 0x2, 0xda, 0x38, 0xad, 0xf2, [], [{{0x9, 0x5, 0x85, 0x2, 0x8, 0x6, 0xd, 0xc0}}, {{0x9, 0x5, 0x9, 0x14, 0x200, 0x8, 0x5, 0x7d}}]}}, {{0x9, 0x4, 0x34, 0x10, 0x0, 0x6, 0x81, 0x76, 0x6}}]}}]}}, 0x0)

program crashed: WARNING in usb_free_urb
validation run: crashed=true
reproducing took 24m46.708647906s
repro crashed as (corrupted=false):
smsmdtv:smscore_start_device: set device mode failed , rc -22
smsusb:smsusb_init_device: smscore_start_device(...) failed
------------[ cut here ]------------
!PageLargeKmalloc(page)
WARNING: mm/slub.c:6467 at free_large_kmalloc+0x9b/0x110 mm/slub.c:6467, CPU#1: kworker/1:4/5921
Modules linked in:
CPU: 1 UID: 0 PID: 5921 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:free_large_kmalloc+0x9b/0x110 mm/slub.c:6467
Code: 8b 43 30 83 f8 ff 74 13 25 00 00 00 ff 3d 00 00 00 f8 75 74 c7 43 30 ff ff ff ff 48 89 df 89 ee 5b 41 5e 5d e9 56 da fc ff 90 <0f> 0b 90 48 89 df 48 c7 c6 a9 15 12 8e 5b 41 5e 5d e9 df 86 03 ff
RSP: 0018:ffffc900038d6b20 EFLAGS: 00010206
RAX: 00000000ff000000 RBX: ffffea00016a5880 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff88805a962000 RDI: ffffea00016a5880
RBP: 0000000000000000 R08: ffff888075baee03 R09: 1ffff1100eb75dc0
R10: dffffc0000000000 R11: ffffed100eb75dc1 R12: 1ffff11006c3f882
R13: ffff88807a850d80 R14: ffff888075baee60 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125304000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558f36415460 CR3: 000000000e74a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 urb_destroy drivers/usb/core/urb.c:25 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_free_urb+0xd0/0x120 drivers/usb/core/urb.c:96
 smsusb_term_device+0x1d7/0x3e0 drivers/media/usb/siano/smsusb.c:352
 smsusb_init_device drivers/media/usb/siano/smsusb.c:497 [inline]
 smsusb_probe+0x1aba/0x2280 drivers/media/usb/siano/smsusb.c:575
 usb_probe_interface+0x659/0xc70 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:709
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:851
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:881
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1009
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1081
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1136
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613
 device_add+0x7b6/0xb70 drivers/base/core.c:3692
 usb_set_configuration+0x1a87/0x2110 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c4/0x3b0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:709
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:851
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:881
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1009
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1081
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1136
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613
 device_add+0x7b6/0xb70 drivers/base/core.c:3692
 usb_new_device+0xa08/0x16f0 drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x2a1c/0x4f30 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

final repro crashed as (corrupted=false):
smsmdtv:smscore_start_device: set device mode failed , rc -22
smsusb:smsusb_init_device: smscore_start_device(...) failed
------------[ cut here ]------------
!PageLargeKmalloc(page)
WARNING: mm/slub.c:6467 at free_large_kmalloc+0x9b/0x110 mm/slub.c:6467, CPU#1: kworker/1:4/5921
Modules linked in:
CPU: 1 UID: 0 PID: 5921 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:free_large_kmalloc+0x9b/0x110 mm/slub.c:6467
Code: 8b 43 30 83 f8 ff 74 13 25 00 00 00 ff 3d 00 00 00 f8 75 74 c7 43 30 ff ff ff ff 48 89 df 89 ee 5b 41 5e 5d e9 56 da fc ff 90 <0f> 0b 90 48 89 df 48 c7 c6 a9 15 12 8e 5b 41 5e 5d e9 df 86 03 ff
RSP: 0018:ffffc900038d6b20 EFLAGS: 00010206
RAX: 00000000ff000000 RBX: ffffea00016a5880 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff88805a962000 RDI: ffffea00016a5880
RBP: 0000000000000000 R08: ffff888075baee03 R09: 1ffff1100eb75dc0
R10: dffffc0000000000 R11: ffffed100eb75dc1 R12: 1ffff11006c3f882
R13: ffff88807a850d80 R14: ffff888075baee60 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125304000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558f36415460 CR3: 000000000e74a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 urb_destroy drivers/usb/core/urb.c:25 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_free_urb+0xd0/0x120 drivers/usb/core/urb.c:96
 smsusb_term_device+0x1d7/0x3e0 drivers/media/usb/siano/smsusb.c:352
 smsusb_init_device drivers/media/usb/siano/smsusb.c:497 [inline]
 smsusb_probe+0x1aba/0x2280 drivers/media/usb/siano/smsusb.c:575
 usb_probe_interface+0x659/0xc70 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:709
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:851
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:881
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1009
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1081
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1136
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613
 device_add+0x7b6/0xb70 drivers/base/core.c:3692
 usb_set_configuration+0x1a87/0x2110 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c4/0x3b0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:709
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:851
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:881
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1009
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1081
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1136
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613
 device_add+0x7b6/0xb70 drivers/base/core.c:3692
 usb_new_device+0xa08/0x16f0 drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x2a1c/0x4f30 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>