dvb-usb: found a 'Artec T1 USB2.0 TVBOX (please check the warm ID)' in cold state, will try to load a firmware usb 2-1: Direct firmware load for dvb-usb-dibusb-6.0.0.8.fw failed with error -2 usb 2-1: Falling back to sysfs fallback for: dvb-usb-dibusb-6.0.0.8.fw ------------[ cut here ]------------ WARNING: drivers/base/firmware_loader/fallback.c:148 at fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline], CPU#0: kworker/0:6/5974 WARNING: drivers/base/firmware_loader/fallback.c:148 at firmware_fallback_sysfs+0x746/0x9b0 drivers/base/firmware_loader/fallback.c:238, CPU#0: kworker/0:6/5974 Modules linked in: CPU: 0 UID: 0 PID: 5974 Comm: kworker/0:6 Not tainted 6.16.0-rc5-next-20250708-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline] RIP: 0010:firmware_fallback_sysfs+0x746/0x9b0 drivers/base/firmware_loader/fallback.c:238 Code: b4 fb e9 5d fc ff ff e8 88 c7 b4 fb c6 05 9f 47 c3 09 01 48 c7 c7 60 11 2c 8c e8 b5 6b 1c fb e9 85 fc ff ff e8 6b c7 b4 fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 40 12 2c 8c 4c 89 e2 e8 e5 99 21 fb e9 RSP: 0018:ffffc9000493e8b0 EFLAGS: 00010283 RAX: ffffffff860b34c5 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc90015bf0000 RSI: 00000000000fb33f RDI: 00000000000fb340 RBP: 0000000000000001 R08: ffffffff8fe47637 R09: 1ffffffff1fc8ec6 R10: dffffc0000000000 R11: fffffbfff1fc8ec7 R12: ffffffff8c761f80 R13: 0000000000001770 R14: ffff888029db90b0 R15: 00000000fffffff5 FS: 0000000000000000(0000) GS:ffff88812579f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd3fbe9ff8 CR3: 0000000034d24000 CR4: 00000000003526f0 Call Trace: _request_firmware+0xf83/0x15b0 drivers/base/firmware_loader/main.c:906 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:957 dvb_usb_download_firmware+0xaf/0x260 drivers/media/usb/dvb-usb/dvb-usb-firmware.c:93 dvb_usb_device_init+0xdd2/0x2580 drivers/media/usb/dvb-usb/dvb-usb-init.c:298 usb_probe_interface+0x634/0xbf0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26a/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3691 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c4/0x390 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26a/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3691 usb_new_device+0xa39/0x16f0 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5948 process_one_work kernel/workqueue.c:3239 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3322 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3403 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245