syzbot

usb 2-1: Direct firmware load for v4l-pvrusb2-29xxx-01.fw failed with error -2
usb 2-1: Falling back to sysfs fallback for: v4l-pvrusb2-29xxx-01.fw
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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: pvrusb2-context/2359
WARNING: drivers/base/firmware_loader/fallback.c:148 at firmware_fallback_sysfs+0x755/0xa40 drivers/base/firmware_loader/fallback.c:238, CPU#1: pvrusb2-context/2359
Modules linked in:
CPU: 1 UID: 0 PID: 2359 Comm: pvrusb2-context Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline]
RIP: 0010:firmware_fallback_sysfs+0x755/0xa40 drivers/base/firmware_loader/fallback.c:238
Code: b4 fb e9 48 fc ff ff e8 c9 e7 b4 fb c6 05 cc 30 0b 0a 01 48 c7 c7 80 f2 54 8c e8 c6 25 16 fb e9 70 fc ff ff e8 ac e7 b4 fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 80 f3 54 8c 4c 89 e2 e8 d6 b3 1a fb e9
RSP: 0018:ffffc9000747f680 EFLAGS: 00010293
RAX: ffffffff861189d4 RBX: dffffc0000000000 RCX: ffff88802c2d0000
RDX: 0000000000000000 RSI: 00000000fffffff5 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff9032d3f7 R09: 1ffffffff2065a7e
R10: dffffc0000000000 R11: fffffbfff2065a7f R12: ffffffff8cafc580
R13: 0000000000001770 R14: ffff88807b3f70b0 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff888125326000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f097e8c2bd0 CR3: 0000000034b93000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 _request_firmware+0x1049/0x1780 drivers/base/firmware_loader/main.c:898
 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:948
 pvr2_locate_firmware+0xb3/0x500 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:1359
 pvr2_upload_firmware1+0x1bd/0x940 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:1426
 pvr2_hdw_setup_low drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2107 [inline]
 pvr2_hdw_setup drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2261 [inline]
 pvr2_hdw_initialize+0x425/0x3c60 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338
 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline]
 pvr2_context_thread_func+0x504/0xc10 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>