------------[ cut here ]------------
WARNING: CPU: 1 PID: 4554 at drivers/base/firmware_loader/fallback.c:144 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:144 [inline]
WARNING: CPU: 1 PID: 4554 at drivers/base/firmware_loader/fallback.c:144 firmware_fallback_sysfs+0x71e/0x950 drivers/base/firmware_loader/fallback.c:234
Modules linked in:
CPU: 1 PID: 4554 Comm: cxacru Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:144 [inline]
RIP: 0010:firmware_fallback_sysfs+0x71e/0x950 drivers/base/firmware_loader/fallback.c:234
Code: df e8 36 6a f9 ff 45 89 e7 eb bc e8 bc 01 67 fc c6 05 14 75 f1 08 01 48 c7 c7 20 06 04 8b e8 79 b9 09 05 eb a7 e8 a2 01 67 fc <0f> 0b 4c 89 f7 48 c7 c6 00 07 04 8b 4c 89 e2 e8 83 ba 0d 05 eb 8c
RSP: 0018:ffffc900059bfae0 EFLAGS: 00010293
RAX: ffffffff851b2c7e RBX: dffffc0000000000 RCX: ffff88802a87bc00
RDX: 0000000000000000 RSI: 00000000fffffff5 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8c9da6e3 R09: 1ffffffff193b4dc
R10: dffffc0000000000 R11: fffffbfff193b4dd R12: ffffc900059bfd40
R13: 0000000000001770 R14: ffff888079c6c030 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77fba7d000 CR3: 000000005b6aa000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _request_firmware+0xccb/0x1280 drivers/base/firmware_loader/main.c:884
 request_firmware+0x32/0x50 drivers/base/firmware_loader/main.c:933
 cxacru_find_firmware+0x101/0x230 drivers/usb/atm/cxacru.c:994
 cxacru_heavy_init+0x17a/0xc40 drivers/usb/atm/cxacru.c:1016
 usbatm_do_heavy_init+0x8a/0x110 drivers/usb/atm/usbatm.c:963
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>