------------[ cut here ]------------
ret
WARNING: drivers/base/firmware_loader/fallback.c:158 at fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline], CPU#1: kworker/1:5/5709
WARNING: drivers/base/firmware_loader/fallback.c:158 at firmware_fallback_sysfs+0x76d/0xa50 drivers/base/firmware_loader/fallback.c:248, CPU#1: kworker/1:5/5709
Modules linked in:
CPU: 1 UID: 0 PID: 5709 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline]
RIP: 0010:firmware_fallback_sysfs+0x76d/0xa50 drivers/base/firmware_loader/fallback.c:248
Code: 86 fb e9 48 fc ff ff e8 a1 b5 86 fb c6 05 dc d7 43 0a 01 48 c7 c7 00 39 99 8c e8 de 98 e6 fa e9 70 fc ff ff e8 84 b5 86 fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 00 3a 99 8c 4c 89 e2 e8 7e 37 eb fa e9
RSP: 0018:ffffc90004976980 EFLAGS: 00010287
RAX: ffffffff8641299c RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc90018ba2000 RSI: 000000000000da1a RDI: 000000000000da1b
RBP: 0000000000000001 R08: ffffffff909b917f R09: 1ffffffff213722f
R10: dffffc0000000000 R11: fffffbfff2137230 R12: ffffffff8cc02280
R13: 0000000000000064 R14: ffff88802c76f0b0 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff88812498f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000ce7000 CR3: 000000007683c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 _request_firmware+0x1049/0x1780 drivers/base/firmware_loader/main.c:898
 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:948
 kaweth_download_firmware+0xd4/0x640 drivers/net/usb/kaweth.c:307
 kaweth_probe+0x8e2/0x1520 drivers/net/usb/kaweth.c:943
 usb_probe_interface+0x788/0xe50 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2708
 hub_port_connect drivers/usb/core/hub.c:5580 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x28e8/0x4d30 drivers/usb/core/hub.c:5966
 process_one_work kernel/workqueue.c:3387 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3470
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3551
 kthread+0x38b/0x480 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>