cm109 5-1:0.8: cm109_urb_irq_callback: urb status -71 ------------[ cut here ]------------ URB ffff888034836e00 submitted while active WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x7b/0x18b0 drivers/usb/core/urb.c:379, CPU#1: ksoftirqd/1/23 Modules linked in: CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:usb_submit_urb+0x7e/0x18b0 drivers/usb/core/urb.c:379 Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 f7 29 f6 fa 49 83 3e 00 74 40 e8 8c bb 8c fa 48 8d 3d f5 1c e6 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 71 bb 8c fa eb 05 e8 6a bb RSP: 0018:ffffc90000a08a00 EFLAGS: 00010083 RAX: ffffffff87398014 RBX: ffff888034836e00 RCX: 0000000000040000 RDX: ffffc900022d2000 RSI: ffff888034836e00 RDI: ffffffff901f9d10 RBP: 000000000000000f R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000141140 R12: 0000000000000820 R13: ffff88801cffe830 R14: ffff888034836e08 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125548000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f193d9da000 CR3: 0000000028a2c000 CR4: 00000000003526f0 Call Trace: cm109_submit_ctl drivers/input/misc/cm109.c:380 [inline] cm109_urb_irq_callback+0x6e2/0xc90 drivers/input/misc/cm109.c:431 __usb_hcd_giveback_urb+0x376/0x540 drivers/usb/core/hcd.c:1657 dummy_timer+0xbc0/0x4650 drivers/usb/gadget/udc/dummy_hcd.c:2005 __run_hrtimer kernel/time/hrtimer.c:1930 [inline] __hrtimer_run_queues+0x3c0/0xa20 kernel/time/hrtimer.c:1994 hrtimer_run_softirq+0x17a/0x240 kernel/time/hrtimer.c:2011 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:finish_task_switch+0x427/0xbe0 kernel/sched/core.c:5209 Code: 41 c7 84 24 e0 0d 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 f6 23 1e 0a e8 61 97 38 00 fb 49 8d bd 68 16 00 00 <48> 89 f8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 7b 03 00 00 41 80 RSP: 0018:ffffc900001d7ab0 EFLAGS: 00000202 RAX: 0000000000286b97 RBX: 1ffff110170e777c RCX: 0000000080000001 RDX: 0000000000000000 RSI: ffffffff8df3fb49 RDI: ffff88801e289668 RBP: ffffc900001d7b10 R08: ffffffff901240f7 R09: 1ffffffff202481e R10: dffffc0000000000 R11: fffffbfff202481f R12: ffff8880b873ae48 R13: ffff88801e288000 R14: ffff88801de98000 R15: dffffc0000000000 context_switch kernel/sched/core.c:5355 [inline] __schedule+0x1664/0x5520 kernel/sched/core.c:6964 __schedule_loop kernel/sched/core.c:7047 [inline] schedule+0x164/0x360 kernel/sched/core.c:7062 smpboot_thread_fn+0x5bc/0xa50 kernel/smpboot.c:156 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: 89 f0 mov %esi,%eax 2: 48 c1 e8 03 shr $0x3,%rax 6: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) b: 74 08 je 0x15 d: 4c 89 f7 mov %r14,%rdi 10: e8 f7 29 f6 fa call 0xfaf62a0c 15: 49 83 3e 00 cmpq $0x0,(%r14) 19: 74 40 je 0x5b 1b: e8 8c bb 8c fa call 0xfa8cbbac 20: 48 8d 3d f5 1c e6 08 lea 0x8e61cf5(%rip),%rdi # 0x8e61d1c 27: 48 89 de mov %rbx,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: b8 f0 ff ff ff mov $0xfffffff0,%eax 34: eb 11 jmp 0x47 36: e8 71 bb 8c fa call 0xfa8cbbac 3b: eb 05 jmp 0x42 3d: e8 .byte 0xe8 3e: 6a bb push $0xffffffffffffffbb