------------[ cut here ]------------ URB ffff8881356ba600 submitted while active WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x1689/0x19b0 drivers/usb/core/urb.c:379, CPU#0: kworker/0:4/5232 Modules linked in: CPU: 0 UID: 0 PID: 5232 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Workqueue: events wdm_rxwork RIP: 0010:usb_submit_urb+0x168c/0x19b0 drivers/usb/core/urb.c:379 Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 70 ff ff ff bb ed ff ff ff e9 ac f1 ff ff e8 6e 2e bb fc 48 8d 3d 87 56 01 06 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 8e f1 ff ff c7 44 24 30 00 00 00 RSP: 0018:ffffc9000248fba0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881356ba600 RCX: ffffffff8526e039 RDX: ffff888114abbc00 RSI: ffff8881356ba600 RDI: ffffffff8afa31e0 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000293 R13: ffff88811c0e9090 R14: ffff88811c0e9050 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88826863d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2a7ad3 CR3: 0000000117240000 CR4: 00000000003506f0 Call Trace: wdm_rxwork+0xf8/0x200 drivers/usb/class/cdc-wdm.c:997 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 ---------------- Code disassembly (best guess): 0: 00 48 8b add %cl,-0x75(%rax) 3: 04 24 add $0x24,%al 5: 48 8b 90 b0 00 00 00 mov 0xb0(%rax),%rdx c: e9 70 ff ff ff jmp 0xffffff81 11: bb ed ff ff ff mov $0xffffffed,%ebx 16: e9 ac f1 ff ff jmp 0xfffff1c7 1b: e8 6e 2e bb fc call 0xfcbb2e8e 20: 48 8d 3d 87 56 01 06 lea 0x6015687(%rip),%rdi # 0x60156ae 27: 48 89 de mov %rbx,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: bb f0 ff ff ff mov $0xfffffff0,%ebx 34: e9 8e f1 ff ff jmp 0xfffff1c7 39: c7 .byte 0xc7 3a: 44 24 30 rex.R and $0x30,%al 3d: 00 00 add %al,(%rax)