cm109 10-1:0.8: cm109_urb_irq_callback: urb status -71 ------------[ cut here ]------------ URB ffff88807bcd4000 submitted while active WARNING: drivers/usb/core/urb.c:380 at 0x0, CPU#0: udevd/11056 Modules linked in: CPU: 0 UID: 0 PID: 11056 Comm: udevd Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:usb_submit_urb+0x7e/0x18d0 drivers/usb/core/urb.c:380 Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 87 14 29 fb 49 83 3e 00 74 40 e8 bc c2 c2 fa 48 8d 3d 15 31 8f 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 a1 c2 c2 fa eb 05 e8 9a c2 RSP: 0018:ffffc90000007878 EFLAGS: 00010083 RAX: ffffffff86feee34 RBX: ffff88807bcd4000 RCX: 0000000000040000 RDX: ffffc90002181000 RSI: ffff88807bcd4000 RDI: ffffffff8f8e1f50 RBP: 000000000000000f R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000000f00 R12: 0000000000000820 R13: ffff88807e213030 R14: ffff88807bcd4008 R15: dffffc0000000000 FS: 00007f0011fcd880(0000) GS:ffff88812604a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003cc0 CR3: 0000000092264000 CR4: 0000000000350ef0 Call Trace: cm109_submit_ctl drivers/input/misc/cm109.c:380 [inline] cm109_urb_irq_callback+0x709/0xcd0 drivers/input/misc/cm109.c:431 __usb_hcd_giveback_urb+0x376/0x540 drivers/usb/core/hcd.c:1661 dummy_timer+0x85f/0x45b0 drivers/usb/gadget/udc/dummy_hcd.c:1995 __run_hrtimer kernel/time/hrtimer.c:1777 [inline] __hrtimer_run_queues+0x51c/0xc30 kernel/time/hrtimer.c:1841 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1858 handle_softirqs+0x27d/0x850 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:finish_task_switch+0x242/0x940 kernel/sched/core.c:5114 Code: 0f 84 c2 01 00 00 48 85 db 0f 85 e9 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 e8 da ca 09 e8 43 75 37 00 fb 4c 8b 65 c0 <49> 8d bc 24 48 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 RSP: 0018:ffffc9000b7777f8 EFLAGS: 00000282 RAX: 45245aee742d4800 RBX: 0000000000000000 RCX: 45245aee742d4800 RDX: 0000000000000006 RSI: ffffffff8d7849cd RDI: ffffffff8bc01ce0 RBP: ffffc9000b777850 R08: ffffffff8f816577 R09: 1ffffffff1f02cae R10: dffffc0000000000 R11: fffffbfff1f02caf R12: ffff888025969e80 R13: dffffc0000000000 R14: ffff88802a68bd00 R15: ffff8880b883b498 context_switch kernel/sched/core.c:5259 [inline] __schedule+0x14c4/0x5000 kernel/sched/core.c:6863 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7190 irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x16c/0x340 kernel/locking/lockdep.c:5872 Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 f4 e9 de 10 <48> 3b 44 24 58 0f 85 e5 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000b777c38 EFLAGS: 00000206 RAX: 45245aee742d4800 RBX: 0000000000000000 RCX: 45245aee742d4800 RDX: 000000008f455700 RSI: ffffffff8d96b829 RDI: ffffffff8bc01ce0 RBP: ffffffff821a1afd R08: ffffffff821a1afd R09: ffffffff8e0622e0 R10: dffffc0000000000 R11: fffff520016eefbe R12: 0000000000000000 R13: ffffffff8e0622e0 R14: 0000000000000001 R15: 0000000000000246 fs_reclaim_acquire+0x99/0x100 mm/page_alloc.c:4318 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4899 [inline] slab_alloc_node mm/slub.c:5234 [inline] kmem_cache_alloc_noprof+0x45/0x710 mm/slub.c:5265 getname_flags+0xb8/0x540 fs/namei.c:146 getname include/linux/fs.h:2498 [inline] do_sys_openat2+0xbc/0x200 fs/open.c:1426 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1447 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f00118a7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffe5ada2060 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f0011fcd880 RCX: 00007f00118a7407 RDX: 0000000000080000 RSI: 00007ffe5ada2190 RDI: ffffffffffffff9c RBP: 0000562e3f025f10 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000562e3f026000 R13: 00007ffe5ada2190 R14: 00007ffe5ada3670 R15: 0000562e13933bcc ---------------- 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 87 14 29 fb call 0xfb29149c 15: 49 83 3e 00 cmpq $0x0,(%r14) 19: 74 40 je 0x5b 1b: e8 bc c2 c2 fa call 0xfac2c2dc 20: 48 8d 3d 15 31 8f 08 lea 0x88f3115(%rip),%rdi # 0x88f313c 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 a1 c2 c2 fa call 0xfac2c2dc 3b: eb 05 jmp 0x42 3d: e8 .byte 0xe8 3e: 9a (bad) 3f: c2 .byte 0xc2