emi26 - firmware loader 4-1:54.103: probe with driver emi26 - firmware loader failed with error -5 emi26 - firmware loader 4-1:54.4: emi26_probe start usb 4-1: Direct firmware load for emi26/loader.fw failed with error -2 usb 4-1: Falling back to sysfs fallback for: emi26/loader.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/0:4/5950 WARNING: drivers/base/firmware_loader/fallback.c:148 at firmware_fallback_sysfs+0x746/0xa40 drivers/base/firmware_loader/fallback.c:238, CPU#0: kworker/0:4/5950 Modules linked in: CPU: 0 UID: 0 PID: 5950 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 10/25/2025 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+0x746/0xa40 drivers/base/firmware_loader/fallback.c:238 Code: e0 fb e9 5d fc ff ff e8 58 27 e0 fb c6 05 21 3a cd 09 01 48 c7 c7 40 1b 0b 8c e8 85 d7 46 fb e9 85 fc ff ff e8 3b 27 e0 fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 40 1c 0b 8c 4c 89 e2 e8 35 84 4b fb e9 RSP: 0018:ffffc9000acceaf0 EFLAGS: 00010283 RAX: ffffffff85e0d395 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc90016c67000 RSI: 00000000000fa201 RDI: 00000000000fa202 RBP: 0000000000000001 R08: ffffffff8fc3fc77 R09: 1ffffffff1f87f8e R10: dffffc0000000000 R11: fffffbfff1f87f8f R12: ffffffff8c420160 R13: 0000000000001770 R14: ffff888011b1b0b0 R15: 00000000fffffff5 FS: 0000000000000000(0000) GS:ffff8881259bd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb30c234e9c CR3: 0000000033472000 CR4: 00000000003526f0 Call Trace: _request_firmware+0xfa4/0x1680 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] emi26_load_firmware drivers/usb/misc/emi26.c:86 [inline] emi26_probe+0x16a/0x1670 drivers/usb/misc/emi26.c:232 usb_probe_interface+0x668/0xc90 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0xad0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:801 driver_probe_device+0x4f/0x240 drivers/base/dd.c:831 __device_attach_driver+0x279/0x430 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:500 __device_attach+0x2b8/0x430 drivers/base/dd.c:1031 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1086 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574 device_add+0x7b6/0xb80 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+0x1c4/0x3c0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0xad0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:801 driver_probe_device+0x4f/0x240 drivers/base/dd.c:831 __device_attach_driver+0x279/0x430 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:500 __device_attach+0x2b8/0x430 drivers/base/dd.c:1031 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1086 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574 device_add+0x7b6/0xb80 drivers/base/core.c:3689 usb_new_device+0xa39/0x1720 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+0x29b1/0x4ef0 drivers/usb/core/hub.c:5953 process_one_work+0x93a/0x15a0 kernel/workqueue.c:3279 process_scheduled_works kernel/workqueue.c:3362 [inline] worker_thread+0x9b0/0xee0 kernel/workqueue.c:3443 kthread+0x389/0x480 kernel/kthread.c:467 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246