cm109 9-1:0.8: cm109_urb_irq_callback: urb status -71 ------------[ cut here ]------------ URB ffff8880622b7f00 submitted while active WARNING: CPU: 1 PID: 9 at drivers/usb/core/urb.c:378 usb_submit_urb+0xff2/0x1910 drivers/usb/core/urb.c:378 Modules linked in: CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: writeback wb_workfn (flush-7:4) RIP: 0010:usb_submit_urb+0xff2/0x1910 drivers/usb/core/urb.c:378 Code: 24 c5 8a 89 ea e8 5e 6d d7 03 e9 fb fb ff ff e8 a4 e0 9a fb c6 05 be f5 97 07 01 48 c7 c7 60 22 c5 8a 48 89 de e8 5e 85 d3 03 <0f> 0b e9 84 f0 ff ff e8 82 e0 9a fb eb 21 e8 7b e0 9a fb 44 8b 6c RSP: 0018:ffffc90000dd0780 EFLAGS: 00010046 RAX: 5ce965240a587900 RBX: ffff8880622b7f00 RCX: 0000000000040000 RDX: ffffc90002309000 RSI: 00000000000017c2 RDI: 00000000000017c3 RBP: 000000000000000f R08: ffff8880b912795b R09: 1ffff11017224f2b R10: dffffc0000000000 R11: ffffed1017224f2c R12: dffffc0000000000 R13: 0000000000000a20 R14: ffff8880622b7f08 R15: ffff88807abe0048 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc62d5c2e54 CR3: 0000000044ddb000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cm109_urb_irq_callback+0x701/0xc70 drivers/input/misc/cm109.c:422 __usb_hcd_giveback_urb+0x35f/0x520 drivers/usb/core/hcd.c:1674 dummy_timer+0x880/0x30b0 drivers/usb/gadget/udc/dummy_hcd.c:1998 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648 expire_timers kernel/time/timer.c:1699 [inline] __run_timers+0x53e/0x800 kernel/time/timer.c:1970 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983 handle_softirqs+0x339/0x830 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] invoke_softirq kernel/softirq.c:450 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:console_unlock+0xcad/0x1120 kernel/printk/printk.c:2749 Code: 75 11 e8 d6 dc 18 00 4d 85 ff 75 16 e8 cc dc 18 00 eb 15 e8 c5 dc 18 00 e8 e0 71 5c 08 4d 85 ff 74 ea e8 b6 dc 18 00 fb 31 ff <89> de e8 0c e0 18 00 85 db 0f 94 c0 22 44 24 17 3c 01 75 1f e8 9a RSP: 0018:ffffc90000ce7160 EFLAGS: 00000246 RAX: ffffffff816057da RBX: 0000000000000000 RCX: ffff88813fe90000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000ce73d0 R08: ffffffff901d50c7 R09: 1ffffffff203aa18 R10: dffffc0000000000 R11: fffffbfff203aa19 R12: 1ffffffff198d729 R13: 0000000000000041 R14: 0000000000000000 R15: 0000000000000200 vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274 _printk+0xda/0x130 kernel/printk/printk.c:2299 jfs_write_inode+0x1af/0x220 fs/jfs/inode.c:139 write_inode fs/fs-writeback.c:1505 [inline] __writeback_single_inode+0x6c3/0xda0 fs/fs-writeback.c:1715 writeback_sb_inodes+0xa4e/0x1680 fs/fs-writeback.c:1940 wb_writeback+0x45d/0xbe0 fs/fs-writeback.c:2114 wb_do_writeback fs/fs-writeback.c:2257 [inline] wb_workfn+0x43a/0xf20 fs/fs-writeback.c:2298 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 ---------------- Code disassembly (best guess): 0: 75 11 jne 0x13 2: e8 d6 dc 18 00 call 0x18dcdd 7: 4d 85 ff test %r15,%r15 a: 75 16 jne 0x22 c: e8 cc dc 18 00 call 0x18dcdd 11: eb 15 jmp 0x28 13: e8 c5 dc 18 00 call 0x18dcdd 18: e8 e0 71 5c 08 call 0x85c71fd 1d: 4d 85 ff test %r15,%r15 20: 74 ea je 0xc 22: e8 b6 dc 18 00 call 0x18dcdd 27: fb sti 28: 31 ff xor %edi,%edi * 2a: 89 de mov %ebx,%esi <-- trapping instruction 2c: e8 0c e0 18 00 call 0x18e03d 31: 85 db test %ebx,%ebx 33: 0f 94 c0 sete %al 36: 22 44 24 17 and 0x17(%rsp),%al 3a: 3c 01 cmp $0x1,%al 3c: 75 1f jne 0x5d 3e: e8 .byte 0xe8 3f: 9a (bad)