dvb-usb: found a 'Technisat SkyStar USB 2 HD CI' in cold state, will try to load a firmware usb 6-1: Direct firmware load for dvb-usb-az6027-03.fw failed with error -2 usb 6-1: Falling back to sysfs fallback for: dvb-usb-az6027-03.fw ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5888 at drivers/base/firmware_loader/fallback.c:148 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline] WARNING: CPU: 0 PID: 5888 at drivers/base/firmware_loader/fallback.c:148 firmware_fallback_sysfs+0x782/0x9e0 drivers/base/firmware_loader/fallback.c:238 Modules linked in: CPU: 0 UID: 0 PID: 5888 Comm: kworker/0:4 Not tainted 6.14.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 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+0x782/0x9e0 drivers/base/firmware_loader/fallback.c:238 Code: 1c 24 e9 4d fc ff ff e8 9c 27 83 fb c6 05 ff 73 e8 09 01 48 c7 c7 60 43 a7 8c e8 09 70 e8 fa e9 72 fc ff ff e8 7f 27 83 fb 90 <0f> 0b 90 48 89 df 48 c7 c6 40 44 a7 8c 4c 89 ea e8 99 c3 ea fa e9 RSP: 0018:ffffc9000436e850 EFLAGS: 00010246 RAX: ffffffff863e9681 RBX: ffff888062d710a8 RCX: 0000000000100000 RDX: ffffc90019c68000 RSI: 00000000000fffff RDI: 0000000000100000 RBP: 000000000000003c R08: ffffffff863e9090 R09: 1ffffffff28a9318 R10: dffffc0000000000 R11: fffffbfff28a9319 R12: 00000000fffffff5 R13: ffffffff8cf1fda0 R14: 0000000000000001 R15: 0000000000001770 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f12f5fdc690 CR3: 0000000033756000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _request_firmware+0xe44/0x1430 drivers/base/firmware_loader/main.c:941 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:992 dvb_usb_download_firmware+0xd7/0x300 drivers/media/usb/dvb-usb/dvb-usb-firmware.c:93 dvb_usb_device_init+0xe91/0x2770 drivers/media/usb/dvb-usb/dvb-usb-init.c:298 usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:462 __device_attach+0x333/0x520 drivers/base/dd.c:1030 bus_probe_device+0x189/0x260 drivers/base/bus.c:537 device_add+0x856/0xbf0 drivers/base/core.c:3665 usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:250 usb_probe_device+0x1b8/0x380 drivers/usb/core/driver.c:291 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:462 __device_attach+0x333/0x520 drivers/base/dd.c:1030 bus_probe_device+0x189/0x260 drivers/base/bus.c:537 device_add+0x856/0xbf0 drivers/base/core.c:3665 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2663 hub_port_connect drivers/usb/core/hub.c:5533 [inline] hub_port_connect_change drivers/usb/core/hub.c:5673 [inline] port_event drivers/usb/core/hub.c:5833 [inline] hub_event+0x2d6d/0x5150 drivers/usb/core/hub.c:5915 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244