rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2689 jiffies s: 25817 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: cdc_wdm 4-1:1.0: nonzero urb status received: -71 NMI backtrace for cpu 0 CPU: 0 PID: 7548 Comm: udevd Not tainted 6.6.0-rc6-syzkaller-00169-gc70793fb7632 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:424 Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 18 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 e8 e5 49 16 ff eb a4 e8 3e 4a 16 ff eb e1 66 RSP: 0018:ffffc90000007400 EFLAGS: 00000002 RAX: 000000000000002e RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff8283a005 RDI: ffffffff8c157d20 RBP: ffffffff8c157ce0 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 205d343936395420 R12: 0000000000000000 R13: 000000000000002e R14: ffffffff82839fa0 R15: 0000000000000000 FS: 00007f30ca891c80(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2568026870 CR3: 0000000100fa1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_out drivers/tty/serial/8250/8250.h:122 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3381 [inline] serial8250_console_write+0xd29/0x1060 drivers/tty/serial/8250/8250_port.c:3452 console_emit_next_record kernel/printk/printk.c:2910 [inline] console_flush_all+0x4eb/0xfb0 kernel/printk/printk.c:2966 console_unlock+0x10c/0x260 kernel/printk/printk.c:3035 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2307 dev_vprintk_emit drivers/base/core.c:4849 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4860 __dev_printk+0xf5/0x270 drivers/base/core.c:4872 _dev_err+0xe5/0x120 drivers/base/core.c:4915 wdm_int_callback+0x10f/0xaa0 drivers/usb/class/cdc-wdm.c:269 __usb_hcd_giveback_urb+0x359/0x5c0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x389/0x430 drivers/usb/core/hcd.c:1733 dummy_timer+0x1415/0x35f0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x19e/0x580 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x764/0xb10 kernel/time/timer.c:2022 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035 __do_softirq+0x20b/0x94e kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xa7/0x110 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x8e/0xb0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:104 [inline] RIP: 0010:__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] RIP: 0010:_raw_spin_lock_irqsave+0xb/0x50 kernel/locking/spinlock.c:162 Code: e8 ba f0 e4 fa 48 89 df 58 5b e9 b0 5c e5 fa e8 9b 94 0a fb eb c9 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 53 48 89 fb 9c 5d f7 c5 00 02 00 00 75 35 bf 01 00 00 00 e8 32 f5 d9 fa 45 31 c9 RSP: 0018:ffffc900071af720 EFLAGS: 00000282 RAX: 0000000000002f2e RBX: ffffffff8c033a38 RCX: dffffc0000000000 RDX: 0000000000001000 RSI: ffffffff8c033a30 RDI: ffffffff8c033a38 RBP: 0000000000000282 R08: 00000000000029f0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 00000000000029f0 R14: ffff8881127518c0 R15: 0000000000000000 __debug_check_no_obj_freed lib/debugobjects.c:1020 [inline] debug_check_no_obj_freed+0xe1/0x4c0 lib/debugobjects.c:1063 slab_free_hook mm/slub.c:1775 [inline] slab_free_freelist_hook mm/slub.c:1826 [inline] slab_free mm/slub.c:3809 [inline] __kmem_cache_free+0x187/0x330 mm/slub.c:3822 tomoyo_check_open_permission+0x19d/0x3b0 security/tomoyo/file.c:786 tomoyo_file_open security/tomoyo/tomoyo.c:332 [inline] tomoyo_file_open+0xa8/0xd0 security/tomoyo/tomoyo.c:327 security_file_open+0x6a/0xe0 security/security.c:2836 do_dentry_open+0x562/0x1570 fs/open.c:916 do_open fs/namei.c:3639 [inline] path_openat+0x19af/0x29c0 fs/namei.c:3796 do_filp_open+0x1de/0x430 fs/namei.c:3823 do_sys_openat2+0x176/0x1e0 fs/open.c:1422 do_sys_open fs/open.c:1437 [inline] __do_sys_openat fs/open.c:1453 [inline] __se_sys_openat fs/open.c:1448 [inline] __x64_sys_openat+0x175/0x210 fs/open.c:1448 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f30ca9bc9a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffeb3737260 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f30ca9bc9a4 RDX: 0000000000080241 RSI: 00007ffeb37377a8 RDI: 00000000ffffff9c RBP: 00007ffeb37377a8 R08: 0000000000000004 R09: 0000000000000001 R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241 R13: 0000560a6e94e72e R14: 0000000000000001 R15: 0000560a6e969160 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 4-1:1.0: nonzero urb status received: -71 cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 4-1:1.0: wdm_int_callback - usb_submit_urb failed with result -19 imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored usbtouchscreen 3-1:0.0: usbtouch_irq - usb_submit_urb failed with result: -19 usb 2-1: USB disconnect, device number 23 usb 3-1: new high-speed USB device number 119 using dummy_hcd usb 3-1: Using ep0 maxpacket: 32 usb 3-1: config 0 interface 0 altsetting 0 bulk endpoint 0x85 has invalid maxpacket 32 usb 3-1: New USB device found, idVendor=14c8, idProduct=0003, bcdDevice= 5.6c usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 3-1: Product: syz usb 3-1: Manufacturer: syz usb 3-1: SerialNumber: syz usb 3-1: config 0 descriptor?? imon 6-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored hub 3-1:0.0: bad descriptor, ignoring hub hub: probe of 3-1:0.0 failed with error -5 input: syz syz as /devices/platform/dummy_hcd.2/usb3/3-1/3-1:0.0/input/input748 usb 3-1: USB disconnect, device number 119