imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10498 ticks this GP) idle=32fc/1/0x4000000000000000 softirq=279409/279409 fqs=5183 rcu: hardirqs softirqs csw/system rcu: number: 6599 7956 0 rcu: cputime: 0 339 52115 ==> 52480(ms) rcu: (t=10500 jiffies g=299545 q=5998 ncpus=2) CPU: 1 UID: 0 PID: 18904 Comm: kworker/1:1 Not tainted 6.16.0-rc4-syzkaller-00324-gf72b9aa821a2 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:console_flush_all+0x9a2/0xc60 kernel/printk/printk.c:3227 Code: 00 e8 32 47 28 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 c0 7d 20 00 48 85 db 0f 85 55 01 00 00 e8 42 82 20 00 fb 4c 89 e0 <48> c1 e8 03 42 80 3c 38 00 0f 84 11 ff ff ff 4c 89 e7 e8 97 84 7d RSP: 0018:ffffc9000152ec68 EFLAGS: 00000246 RAX: ffffffff895d4cf8 RBX: 0000000000000000 RCX: ffffc9000fca7000 RDX: 0000000000100000 RSI: ffffffff815d4eee RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff895d4cf8 R13: ffffffff895d4ca0 R14: ffffc9000152ecf8 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888269262000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fabc0f67bac CR3: 0000000117786000 CR4: 00000000003506f0 Call Trace: __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xd8/0x210 kernel/printk/printk.c:3325 vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450 dev_vprintk_emit drivers/base/core.c:4917 [inline] dev_printk_emit+0xfa/0x140 drivers/base/core.c:4928 __dev_printk+0xf5/0x270 drivers/base/core.c:4940 _dev_err+0xe4/0x120 drivers/base/core.c:4983 call_driver_probe drivers/base/dd.c:595 [inline] really_probe+0x7cb/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x156/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250 usb_probe_device+0xef/0x3e0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x23e/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x156/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 usb_new_device+0xd07/0x1a20 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2f85/0x5030 drivers/usb/core/hub.c:5948 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x5b3/0x6c0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored imon 3-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 5231 Comm: kworker/1:3 Not tainted 6.16.0-rc4-syzkaller-00324-gf72b9aa821a2 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:416 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 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 cc cc cc cc e8 61 40 05 ff eb a0 e8 ea 40 05 RSP: 0018:ffffc900001a8500 EFLAGS: 00000002 RAX: 000000000000005b RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff82d59275 RDI: ffffffff93928fc0 RBP: ffffffff93928f80 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 000000000000005b R14: ffffffff93928f80 R15: ffffffff82d59210 FS: 0000000000000000(0000) GS:ffff888269262000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fabc0f67bac CR3: 0000000117786000 CR4: 00000000003506f0 Call Trace: serial_port_out include/linux/serial_core.h:798 [inline] serial8250_console_putchar drivers/tty/serial/8250/8250_port.c:3306 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3378 [inline] serial8250_console_write+0xfbc/0x1890 drivers/tty/serial/8250/8250_port.c:3456 console_emit_next_record kernel/printk/printk.c:3138 [inline] console_flush_all+0x801/0xc60 kernel/printk/printk.c:3226 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xd8/0x210 kernel/printk/printk.c:3325 vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450 dev_vprintk_emit drivers/base/core.c:4917 [inline] dev_printk_emit+0xfa/0x140 drivers/base/core.c:4928 __dev_printk+0xf5/0x270 drivers/base/core.c:4940 _dev_warn+0xe4/0x120 drivers/base/core.c:4984 usb_rx_callback_intf0+0x11c/0x1a0 drivers/media/rc/imon.c:1768 __usb_hcd_giveback_urb+0x38a/0x6e0 drivers/usb/core/hcd.c:1663 usb_hcd_giveback_urb+0x39b/0x450 drivers/usb/core/hcd.c:1747 dummy_timer+0x1814/0x3a30 drivers/usb/gadget/udc/dummy_hcd.c:1995 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x1ff/0xad0 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842 handle_softirqs+0x208/0x8d0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xfa/0x160 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:rcu_is_watching+0x80/0xc0 kernel/rcu/tree.c:746 Code: 89 da 48 c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b 03 c1 e8 02 83 e0 01 65 ff 0d a0 86 08 0b <74> 07 5b 5d e9 87 95 ce 05 0f 1f 44 00 00 5b 5d c3 cc cc cc cc 48 RSP: 0018:ffffc9000218f108 EFLAGS: 00000286 RAX: 0000000000000001 RBX: ffff8881f5932fa8 RCX: ffffc90002190001 RDX: 0000000000000000 RSI: ffffffff87690340 RDI: ffffffff88bb1b88 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000039eb1 R12: ffffc9000218f1e0 R13: ffffc9000218f190 R14: ffffc9000218f9a8 R15: ffffc9000218f1c4 rcu_read_unlock include/linux/rcupdate.h:869 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xa92/0x20a0 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_record_aux_stack+0x8c/0xa0 mm/kasan/generic.c:548 __call_rcu_common.constprop.0+0xa5/0xa10 kernel/rcu/tree.c:3094 kernfs_put.part.0+0x162/0x640 fs/kernfs/dir.c:591 kernfs_put fs/kernfs/dir.c:1724 [inline] kernfs_remove_by_name_ns+0xdf/0x110 fs/kernfs/dir.c:1718 kernfs_remove_by_name include/linux/kernfs.h:633 [inline] sysfs_unmerge_group+0xe7/0x170 fs/sysfs/group.c:402 rpm_sysfs_remove drivers/base/power/sysfs.c:823 [inline] dpm_sysfs_remove+0x7f/0xb0 drivers/base/power/sysfs.c:832 device_del+0x1a0/0x9f0 drivers/base/core.c:3856 hid_remove_device drivers/hid/hid-core.c:2964 [inline] hid_destroy_device+0x19c/0x240 drivers/hid/hid-core.c:2986 usbhid_disconnect+0xa0/0xe0 drivers/hid/usbhid/hid-core.c:1462 usb_unbind_interface+0x1da/0x9a0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:569 [inline] device_remove+0x125/0x170 drivers/base/dd.c:561 __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x44b/0x620 drivers/base/dd.c:1295 bus_remove_device+0x22f/0x420 drivers/base/bus.c:579 device_del+0x396/0x9f0 drivers/base/core.c:3881 usb_disable_device+0x355/0x7d0 drivers/usb/core/message.c:1418 usb_disconnect+0x2e1/0x9c0 drivers/usb/core/hub.c:2344 hub_port_connect drivers/usb/core/hub.c:5406 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x1aa0/0x5030 drivers/usb/core/hub.c:5948 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x5b3/0x6c0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245