usb 4-1: Direct firmware load for emi62/loader.fw failed with error -2 usb 4-1: Falling back to sysfs fallback for: emi62/loader.fw ------------[ cut here ]------------ ret WARNING: drivers/base/firmware_loader/fallback.c:148 at fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline], CPU#1: kworker/1:6/5914 WARNING: drivers/base/firmware_loader/fallback.c:148 at firmware_fallback_sysfs+0x746/0xa30 drivers/base/firmware_loader/fallback.c:238, CPU#1: kworker/1:6/5914 Modules linked in: CPU: 1 UID: 0 PID: 5914 Comm: kworker/1:6 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 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+0x746/0xa30 drivers/base/firmware_loader/fallback.c:238 Code: ce fb e9 5d fc ff ff e8 a8 55 ce fb c6 05 87 0f 07 0a 01 48 c7 c7 a0 43 34 8c e8 05 e1 32 fb e9 85 fc ff ff e8 8b 55 ce fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 a0 44 34 8c 4c 89 e2 e8 d5 ba 37 fb e9 RSP: 0018:ffffc9000513ead0 EFLAGS: 00010246 RAX: ffffffff85f4ce05 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc900160c2000 RSI: 00000000000fffff RDI: 0000000000100000 RBP: 0000000000000001 R08: ffffffff9011d4b7 R09: 1ffffffff2023a96 R10: dffffc0000000000 R11: fffffbfff2023a97 R12: ffffffff8c6c9000 R13: 0000000000001770 R14: ffff888057d9f0b0 R15: 00000000fffffff5 FS: 0000000000000000(0000) GS:ffff88812539e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fadb5e72bd0 CR3: 0000000036800000 CR4: 00000000003526f0 Call Trace: _request_firmware+0x1052/0x1780 drivers/base/firmware_loader/main.c:898 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:948 request_ihex_firmware include/linux/ihex.h:71 [inline] emi62_load_firmware drivers/usb/misc/emi62.c:95 [inline] emi62_probe+0x173/0x1980 drivers/usb/misc/emi62.c:245 usb_probe_interface+0x668/0xc90 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x267/0xaf0 drivers/base/dd.c:661 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:803 driver_probe_device+0x4f/0x240 drivers/base/dd.c:833 __device_attach_driver+0x2d4/0x4c0 drivers/base/dd.c:961 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500 __device_attach+0x2c5/0x450 drivers/base/dd.c:1033 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1088 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574 device_add+0x7b6/0xb70 drivers/base/core.c:3689 usb_set_configuration+0x1a87/0x2110 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c4/0x3b0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x267/0xaf0 drivers/base/dd.c:661 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:803 driver_probe_device+0x4f/0x240 drivers/base/dd.c:833 __device_attach_driver+0x2d4/0x4c0 drivers/base/dd.c:961 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500 __device_attach+0x2c5/0x450 drivers/base/dd.c:1033 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1088 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574 device_add+0x7b6/0xb70 drivers/base/core.c:3689 usb_new_device+0xa08/0x16f0 drivers/usb/core/hub.c:2695 hub_port_connect drivers/usb/core/hub.c:5567 [inline] hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x2a1c/0x4f30 drivers/usb/core/hub.c:5953 process_one_work+0x949/0x15a0 kernel/workqueue.c:3279 process_scheduled_works kernel/workqueue.c:3362 [inline] worker_thread+0x9af/0xee0 kernel/workqueue.c:3443 kthread+0x388/0x470 kernel/kthread.c:467 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245