------------[ cut here ]------------ URB ffff88803663e000 submitted while active WARNING: CPU: 0 PID: 5321 at drivers/usb/core/urb.c:379 usb_submit_urb+0x1039/0x1930 drivers/usb/core/urb.c:379 Modules linked in: CPU: 0 UID: 0 PID: 5321 Comm: kworker/0:4 Not tainted 6.12.0-rc7-syzkaller-00012-g3022e9d00ebe #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: events wdm_rxwork RIP: 0010:usb_submit_urb+0x1039/0x1930 drivers/usb/core/urb.c:379 Code: 00 eb 66 e8 39 06 5c fa e9 79 f0 ff ff e8 2f 06 5c fa c6 05 cd ff cd 08 01 90 48 c7 c7 80 1e b1 8c 4c 89 ee e8 88 fc 1c fa 90 <0f> 0b 90 90 e9 40 f0 ff ff e8 09 06 5c fa eb 12 e8 02 06 5c fa 41 RSP: 0018:ffffc9000d39fae8 EFLAGS: 00010246 RAX: 0f5518250652cf00 RBX: 0000000000000cc0 RCX: ffff88801f8ac880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88803663e008 R08: ffffffff8155d312 R09: fffffbfff1cf9fd0 R10: dffffc0000000000 R11: fffffbfff1cf9fd0 R12: 1ffff11009db4b12 R13: ffff88803663e000 R14: dffffc0000000000 R15: ffff88804eda5828 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b18d16f98 CR3: 000000001e0b0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: wdm_rxwork+0x116/0x1f0 drivers/usb/class/cdc-wdm.c:989 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244