syzbot

usb 2-1: Direct firmware load for ti_3410.fw failed with error -2
usb 2-1: Falling back to sysfs fallback for: ti_3410.fw
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WARNING: CPU: 0 PID: 977 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: 977 at drivers/base/firmware_loader/fallback.c:148 firmware_fallback_sysfs+0x746/0x9b0 drivers/base/firmware_loader/fallback.c:238
Modules linked in:
CPU: 0 UID: 0 PID: 977 Comm: kworker/0:2 Not tainted 6.15.0-syzkaller-09113-g8477ab143069 #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: cc fb e9 5d fc ff ff e8 68 a4 cc fb c6 05 32 e8 95 09 01 48 c7 c7 e0 2c 08 8c e8 05 f3 33 fb e9 85 fc ff ff e8 4b a4 cc fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 c0 2d 08 8c 4c 89 e2 e8 a5 bc 38 fb e9
RSP: 0018:ffffc900038068d0 EFLAGS: 00010283
RAX: ffffffff85f39875 RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc900195d7000 RSI: 000000000003441b RDI: 000000000003441c
RBP: 0000000000000001 R08: ffffffff8f9f7ef7 R09: 1ffffffff1f3efde
R10: dffffc0000000000 R11: fffffbfff1f3efdf R12: ffffc90003806bd0
R13: 0000000000001770 R14: ffff888020ed20b0 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff888125c99000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f772a7b2de0 CR3: 0000000034d36000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _request_firmware+0xf83/0x15b0 drivers/base/firmware_loader/main.c:915
 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:966
 ti_download_firmware drivers/usb/serial/ti_usb_3410_5052.c:-1 [inline]
 ti_startup+0x925/0x1580 drivers/usb/serial/ti_usb_3410_5052.c:552
 usb_serial_probe+0x2509/0x2d20 drivers/usb/serial/usb-serial.c:1123
 usb_probe_interface+0x641/0xbc0 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:3692
 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:3692
 usb_new_device+0xa39/0x16c0 drivers/usb/core/hub.c:2663
 hub_port_connect drivers/usb/core/hub.c:5531 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5671 [inline]
 port_event drivers/usb/core/hub.c:5831 [inline]
 hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5913
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>