Extracting prog: 1m22.030690837s
Minimizing prog: 5m1.806587559s
Simplifying prog options: 0s
Extracting C: 21.833418886s
Simplifying C: 3m58.014704075s


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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
detailed listing:
executing program 0:
write$char_usb(0xffffffffffffffff, &(0x7f0000000000)="4c5f165d12733650022884d9059e897913fa11cfe2d283afe908060282897f5a4085ffeb2e2bed3f5dde15ec11d3b39c1585ba4264ff80f5198d75630683053614b1c282683cf4ae218ef22dca23e81344eedca833cfeab76e5091eec31f45271d2dd7df4cfeeeabd163f3764436e26957ecf487b3c8a54796a64f1bcc1187e569a1fad69a8327b3c5a77d4c8b059be23b31cb9d546b0c548a6952125d44e0674bce3df260bb019951af57d740a3668f99b616f6e9d5b7e37963368a10536d52d3959cd31535bdb05d2b0086566ed805a36189eb209d6fadb4821a306bd525bd5fe6e1cc3733dcd479", 0xe9)
syz_usb_connect(0x0, 0x36, &(0x7f0000000000)=ANY=[@ANYBLOB="120100002f0c81087f180002ad6b0102030109022400010000000009040000023c7f98000905030200000000000905ba"], 0x0)

program crashed: WARNING in usb_free_urb
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=44.758960788s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb
detailed listing:
executing program 0:
write$char_usb(0xffffffffffffffff, &(0x7f0000000000)="4c5f165d12733650022884d9059e897913fa11cfe2d283afe908060282897f5a4085ffeb2e2bed3f5dde15ec11d3b39c1585ba4264ff80f5198d75630683053614b1c282683cf4ae218ef22dca23e81344eedca833cfeab76e5091eec31f45271d2dd7df4cfeeeabd163f3764436e26957ecf487b3c8a54796a64f1bcc1187e569a1fad69a8327b3c5a77d4c8b059be23b31cb9d546b0c548a6952125d44e0674bce3df260bb019951af57d740a3668f99b616f6e9d5b7e37963368a10536d52d3959cd31535bdb05d2b0086566ed805a36189eb209d6fadb4821a306bd525bd5fe6e1cc3733dcd479", 0xe9)

program did not crash
testing program (duration=44.758960788s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x36, &(0x7f0000000000)=ANY=[@ANYBLOB="120100002f0c81087f180002ad6b0102030109022400010000000009040000023c7f98000905030200000000000905ba"], 0x0)

program did not crash
testing program (duration=44.758960788s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
detailed listing:
executing program 0:
write$char_usb(0xffffffffffffffff, 0x0, 0x0)
syz_usb_connect(0x0, 0x36, &(0x7f0000000000)=ANY=[@ANYBLOB="120100002f0c81087f180002ad6b0102030109022400010000000009040000023c7f98000905030200000000000905ba"], 0x0)

program did not crash
testing program (duration=44.758960788s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
detailed listing:
executing program 0:
write$char_usb(0xffffffffffffffff, &(0x7f0000000000), 0x0)
syz_usb_connect(0x0, 0x36, &(0x7f0000000000)=ANY=[@ANYBLOB="120100002f0c81087f180002ad6b0102030109022400010000000009040000023c7f98000905030200000000000905ba"], 0x0)

program did not crash
testing program (duration=44.758960788s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
detailed listing:
executing program 0:
write$char_usb(0xffffffffffffffff, &(0x7f0000000000)="4c5f165d12733650022884d9059e897913fa11cfe2d283afe908060282897f5a4085ffeb2e2bed3f5dde15ec11d3b39c1585ba4264ff80f5198d75630683053614b1c282683cf4ae218ef22dca23e81344eedca833cfeab76e5091eec31f45271d2dd7df4cfeeeabd163f3764436e26957ecf487b3c8a54796a64f1bcc1187e569a1fad69a8327b3c5a77d4c8b059be23b31cb9d546b0c548a6952125d44e0674bce3df260bb019951af57d740a3668f99b616f6e9d5b7e37963368a10536d52d3959cd31535bdb05d2b0086566ed805a36189eb209d6fadb4821a306bd525bd5fe6e1cc3733dcd479", 0xe9)
syz_usb_connect(0x0, 0x36, 0x0, 0x0)

program did not crash
testing program (duration=44.758960788s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
detailed listing:
executing program 0:
write$char_usb(0xffffffffffffffff, &(0x7f0000000000)="4c5f165d12733650022884d9059e897913fa11cfe2d283afe908060282897f5a4085ffeb2e2bed3f5dde15ec11d3b39c1585ba4264ff80f5198d75630683053614b1c282683cf4ae218ef22dca23e81344eedca833cfeab76e5091eec31f45271d2dd7df4cfeeeabd163f3764436e26957ecf487b3c8a54796a64f1bcc1187e569a1fad69a8327b3c5a77d4c8b059be23b31cb9d546b0c548a6952125d44e0674bce3df260bb019951af57d740a3668f99b616f6e9d5b7e37963368a10536d52d3959cd31535bdb05d2b0086566ed805a36189eb209d6fadb4821a306bd525bd5fe6e1cc3733dcd479", 0xe9)
syz_usb_connect(0x0, 0x36, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=44.758960788s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
simplifying C reproducer
testing compiled C program (duration=44.758960788s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=44.758960788s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=44.758960788s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=44.758960788s, {Threaded:false Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=44.758960788s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=44.758960788s, {Threaded:false Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
testing compiled C program (duration=44.758960788s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$char_usb-syz_usb_connect
program crashed: WARNING in usb_free_urb
reproducing took 10m43.685420772s
repro crashed as (corrupted=false):
smsusb:siano_media_device_register: media controller created
smsusb:smsusb_start_streaming: smsusb_submit_urb(...) failed
smsusb:smsusb_init_device: smsusb_start_streaming(...) failed
------------[ cut here ]------------
WARNING: CPU: 2 PID: 24 at mm/slub.c:4752 free_large_kmalloc+0x120/0x1a0 mm/slub.c:4752
Modules linked in:
CPU: 2 UID: 0 PID: 24 Comm: kworker/2:0 Not tainted 6.15.0-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:free_large_kmalloc+0x120/0x1a0 mm/slub.c:4752
Code: ff ff ff e8 42 55 ad ff 89 ea be 06 00 00 00 48 89 df e8 a3 4b 13 00 e8 6e 53 ad ff 9c 58 f6 c4 02 75 75 fb e9 65 ff ff ff 90 <0f> 0b 90 48 c7 c6 20 06 bd 8d 48 89 df 5b 5d 41 5c 41 5d e9 d8 58
RSP: 0018:ffffc9000062edb8 EFLAGS: 00010202
RAX: 00fff00000000000 RBX: ffffea0000e9f880 RCX: ffffffff816b74fc
RDX: ffff88801deea440 RSI: ffff88803a7e2000 RDI: ffffea0000e9f880
RBP: ffff88803a7e2000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881007a4000
R13: ffff8881006b5000 R14: dffffc0000000000 R15: ffff8881007a40f0
FS:  0000000000000000(0000) GS:ffff8880d6bda000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a99f47bcc8 CR3: 0000000032deb000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 urb_destroy drivers/usb/core/urb.c:25 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_free_urb.part.0+0xe5/0x100 drivers/usb/core/urb.c:97
 usb_free_urb+0x1f/0x30 drivers/usb/core/urb.c:96
 smsusb_term_device+0x108/0x1e0 drivers/media/usb/siano/smsusb.c:352
 smsusb_init_device+0xaa0/0xe00 drivers/media/usb/siano/smsusb.c:497
 smsusb_probe+0x5d3/0x1090 drivers/media/usb/siano/smsusb.c:575
 usb_probe_interface+0x303/0x9c0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x241/0xa90 drivers/base/dd.c:657
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537
 device_add+0x1148/0x1a70 drivers/base/core.c:3692
 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x3e0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x241/0xa90 drivers/base/dd.c:657
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537
 device_add+0x1148/0x1a70 drivers/base/core.c:3692
 usb_new_device+0xd07/0x1a20 drivers/usb/core/hub.c:2663
 hub_port_connect drivers/usb/core/hub.c:5531 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5671 [inline]
 port_event drivers/usb/core/hub.c:5831 [inline]
 hub_event+0x2eb7/0x4fa0 drivers/usb/core/hub.c:5913
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

final repro crashed as (corrupted=false):
smsusb:siano_media_device_register: media controller created
smsusb:smsusb_start_streaming: smsusb_submit_urb(...) failed
smsusb:smsusb_init_device: smsusb_start_streaming(...) failed
------------[ cut here ]------------
WARNING: CPU: 2 PID: 24 at mm/slub.c:4752 free_large_kmalloc+0x120/0x1a0 mm/slub.c:4752
Modules linked in:
CPU: 2 UID: 0 PID: 24 Comm: kworker/2:0 Not tainted 6.15.0-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:free_large_kmalloc+0x120/0x1a0 mm/slub.c:4752
Code: ff ff ff e8 42 55 ad ff 89 ea be 06 00 00 00 48 89 df e8 a3 4b 13 00 e8 6e 53 ad ff 9c 58 f6 c4 02 75 75 fb e9 65 ff ff ff 90 <0f> 0b 90 48 c7 c6 20 06 bd 8d 48 89 df 5b 5d 41 5c 41 5d e9 d8 58
RSP: 0018:ffffc9000062edb8 EFLAGS: 00010202
RAX: 00fff00000000000 RBX: ffffea0000e9f880 RCX: ffffffff816b74fc
RDX: ffff88801deea440 RSI: ffff88803a7e2000 RDI: ffffea0000e9f880
RBP: ffff88803a7e2000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881007a4000
R13: ffff8881006b5000 R14: dffffc0000000000 R15: ffff8881007a40f0
FS:  0000000000000000(0000) GS:ffff8880d6bda000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a99f47bcc8 CR3: 0000000032deb000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 urb_destroy drivers/usb/core/urb.c:25 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_free_urb.part.0+0xe5/0x100 drivers/usb/core/urb.c:97
 usb_free_urb+0x1f/0x30 drivers/usb/core/urb.c:96
 smsusb_term_device+0x108/0x1e0 drivers/media/usb/siano/smsusb.c:352
 smsusb_init_device+0xaa0/0xe00 drivers/media/usb/siano/smsusb.c:497
 smsusb_probe+0x5d3/0x1090 drivers/media/usb/siano/smsusb.c:575
 usb_probe_interface+0x303/0x9c0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x241/0xa90 drivers/base/dd.c:657
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537
 device_add+0x1148/0x1a70 drivers/base/core.c:3692
 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x3e0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x241/0xa90 drivers/base/dd.c:657
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537
 device_add+0x1148/0x1a70 drivers/base/core.c:3692
 usb_new_device+0xd07/0x1a20 drivers/usb/core/hub.c:2663
 hub_port_connect drivers/usb/core/hub.c:5531 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5671 [inline]
 port_event drivers/usb/core/hub.c:5831 [inline]
 hub_event+0x2eb7/0x4fa0 drivers/usb/core/hub.c:5913
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>