imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10499 ticks this GP) idle=d774/1/0x4000000000000000 softirq=59668/59668 fqs=5185 rcu: hardirqs softirqs csw/system rcu: number: 1 8124 0 rcu: cputime: 0 529 51941 ==> 52480(ms) rcu: (t=10500 jiffies g=53993 q=7166 ncpus=2) CPU: 1 UID: 0 PID: 23 Comm: kworker/1:0 Not tainted 6.15.0-rc4-syzkaller-00104-g588d032e9e56 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Workqueue: events legacy_dvb_usb_read_remote_control RIP: 0010:console_flush_all+0x9a2/0xc60 kernel/printk/printk.c:3227 Code: 00 e8 02 c8 27 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 f0 0a 20 00 48 85 db 0f 85 55 01 00 00 e8 72 0f 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 47 d4 7b RSP: 0018:ffffc9000018f820 EFLAGS: 00000293 RAX: ffffffff895ba7f8 RBX: 0000000000000000 RCX: ffffffff815c5be0 RDX: ffff888101ed57c0 RSI: ffffffff815c5bee RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff895ba7f8 R13: ffffffff895ba7a0 R14: ffffc9000018f8b0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8882692c4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fda804d7bac CR3: 0000000008ea4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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 _printk+0xc7/0x100 kernel/printk/printk.c:2475 m920x_read drivers/media/usb/dvb-usb/m920x.c:40 [inline] m920x_rc_query+0x496/0x770 drivers/media/usb/dvb-usb/m920x.c:193 legacy_dvb_usb_read_remote_control+0x109/0x4f0 drivers/media/usb/dvb-usb/dvb-usb-remote.c:123 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 5533 Comm: kworker/1:6 Not tainted 6.15.0-rc4-syzkaller-00104-g588d032e9e56 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Workqueue: events free_obj_work 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 a1 88 09 ff eb a0 e8 2a 89 09 RSP: 0018:ffffc900001a84e0 EFLAGS: 00000006 RAX: 0000000000000000 RBX: 00000000000003f9 RCX: 0000000000000000 RDX: 00000000000003f9 RSI: ffffffff82cea6e5 RDI: ffffffff938c57e0 RBP: ffffffff938c57a0 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff938c57a0 R15: ffffffff938c5a60 FS: 0000000000000000(0000) GS:ffff8882692c4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fda804d7bac CR3: 0000000008ea4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_out drivers/tty/serial/8250/8250.h:142 [inline] serial8250_clear_IER+0x9b/0xc0 drivers/tty/serial/8250/8250_port.c:717 serial8250_console_write+0x255/0x1890 drivers/tty/serial/8250/8250_port.c:3421 console_emit_next_record kernel/printk/printk.c:3138 [inline] console_flush_all+0x7fe/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:1650 usb_hcd_giveback_urb+0x39b/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x180e/0x3a20 drivers/usb/gadget/udc/dummy_hcd.c:1994 __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+0x205/0x8d0 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:1049 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline] RIP: 0010:rcu_is_watching+0x3d/0xc0 kernel/rcu/tree.c:736 Code: c7 c3 a8 eb 66 8c 89 c5 83 f8 07 0f 87 82 00 00 00 48 8d 3c ed e0 4a b8 88 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 5c 48 03 1c ed e0 4a b8 88 48 b8 00 00 00 00 00 fc RSP: 0018:ffffc900040476b8 EFLAGS: 00000a02 RAX: dffffc0000000000 RBX: ffffffff8c66eba8 RCX: ffffc90004048001 RDX: 1ffffffff117095d RSI: ffffffff87685160 RDI: ffffffff88b84ae8 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000002 R11: 000000000000d0b9 R12: ffffffff813a6834 R13: ffffc90004047788 R14: ffffc90004047b80 R15: ffffc900040477bc trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x201/0x2f0 kernel/locking/lockdep.c:5877 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x3f9/0x20a0 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_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x37/0x50 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2398 [inline] slab_free mm/slub.c:4656 [inline] kmem_cache_free+0x2a3/0x470 mm/slub.c:4758 free_object_list.isra.0+0xf8/0x2a0 lib/debugobjects.c:326 free_obj_work+0x18c/0x390 lib/debugobjects.c:513 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245