------------[ cut here ]------------ WARNING: CPU: 0 PID: 2312 at drivers/base/firmware_loader/fallback.c:144 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:144 [inline] WARNING: CPU: 0 PID: 2312 at drivers/base/firmware_loader/fallback.c:144 firmware_fallback_sysfs+0x71e/0x950 drivers/base/firmware_loader/fallback.c:234 Modules linked in: CPU: 0 PID: 2312 Comm: pvrusb2-context 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:ffffc90005aa7760 EFLAGS: 00010293 RAX: ffffffff851b2c7e RBX: dffffc0000000000 RCX: ffff888029833c00 RDX: 0000000000000000 RSI: 00000000fffffff5 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff90b1035f R09: 1ffffffff216206b R10: dffffc0000000000 R11: fffffbfff216206c R12: ffffffff8b5f96a0 R13: 0000000000001770 R14: ffff888056a670a8 R15: 00000000fffffff5 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f624220 CR3: 0000000057f41000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _request_firmware+0xccb/0x1280 drivers/base/firmware_loader/main.c:884 request_firmware+0x32/0x50 drivers/base/firmware_loader/main.c:933 pvr2_locate_firmware+0xb3/0x500 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:1359 pvr2_upload_firmware1+0x1ba/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+0x422/0x3c10 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline] pvr2_context_thread_func+0x4f8/0xbd0 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295