usb 2-1: Direct firmware load for dvb-usb-dibusb-5.0.0.11.fw failed with error -2
usb 2-1: Falling back to sysfs fallback for: dvb-usb-dibusb-5.0.0.11.fw
------------[ 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#0: kworker/0:4/5706
WARNING: drivers/base/firmware_loader/fallback.c:158 at firmware_fallback_sysfs+0x76d/0xa50 drivers/base/firmware_loader/fallback.c:248, CPU#0: kworker/0:4/5706
Modules linked in:
CPU: 0 UID: 0 PID: 5706 Comm: kworker/0:4 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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: 8f fb e9 48 fc ff ff e8 a1 04 8f fb c6 05 dc f1 2a 0a 01 48 c7 c7 60 01 98 8c e8 7e f9 ee fa e9 70 fc ff ff e8 84 04 8f fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 60 02 98 8c 4c 89 e2 e8 ce 73 f3 fa e9
RSP: 0018:ffffc90004e6e8c0 EFLAGS: 00010287
RAX: ffffffff8638c62c RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc9001af90000 RSI: 000000000004b077 RDI: 000000000004b078
RBP: 0000000000000001 R08: ffffffff907a327f R09: 1ffffffff20f464f
R10: dffffc0000000000 R11: fffffbfff20f4650 R12: ffffffff8ce476a0
R13: 0000000000001770 R14: ffff8880557170b0 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff888124cd2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555558b99e8 CR3: 000000000eb48000 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
 dvb_usb_download_firmware+0xb5/0x270 drivers/media/usb/dvb-usb/dvb-usb-firmware.c:93
 dvb_usb_device_init+0xddf/0x2570 drivers/media/usb/dvb-usb/dvb-usb-init.c:298
 dibusb_probe+0x2d/0xf0 drivers/media/usb/dvb-usb/dibusb-mb.c:110
 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+0x258/0serialport: VM disconnected.