------------[ cut here ]------------ NETDEV WATCHDOG: usb1 (cdc_ether): transmit queue 0 timed out 6970 ms WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:525 dev_watchdog+0x884/0x8b0 net/sched/sch_generic.c:525 Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.5.0-rc1-syzkaller-00033-geb26cbb1a754 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 RIP: 0010:dev_watchdog+0x884/0x8b0 net/sched/sch_generic.c:525 Code: 8b 74 24 08 c6 05 83 3f 5b 06 01 4c 89 f7 e8 c3 81 e6 ff 41 89 d8 89 e9 4c 89 f6 48 89 c2 48 c7 c7 a0 42 84 8b e8 6c 6a 12 f9 <0f> 0b e9 18 fd ff ff e8 10 44 4b f9 0f 0b e9 ac fc ff ff e8 e4 d8 RSP: 0018:ffffc900001e0cc0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000001b3a RCX: 0000000000000100 RDX: ffff888016a49dc0 RSI: ffffffff814cde77 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000bee50 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880762f8000 R15: ffff8880762f8548 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb958d980c0 CR3: 0000000049d0a000 CR4: 00000000003506e0 Call Trace: call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers.part.0+0x6a6/0xa30 kernel/time/timer.c:2022 __run_timers kernel/time/timer.c:2000 [inline] run_timer_softirq+0xba/0x1d0 kernel/time/timer.c:2035 __do_softirq+0x1d8/0x8fd kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109 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:__intel_idle_hlt drivers/idle/intel_idle.c:206 [inline] RIP: 0010:intel_idle_hlt+0x11/0x20 drivers/idle/intel_idle.c:224 Code: 48 89 de 48 c7 c7 00 f2 3f 8d e8 aa ad 24 fa e9 51 ff ff ff 0f 1f 44 00 00 f3 0f 1e fa 89 d0 66 90 0f 00 2d b1 90 a8 00 fb f4 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 89 d0 fb RSP: 0018:ffffc90000177d90 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffffe8ffffd09a50 RCX: ffffffff8a2601ee RDX: 0000000000000001 RSI: ffffffff8d3ff380 RDI: ffffe8ffffd09a50 RBP: ffffffff8d3ff380 R08: 0000000000000001 R09: ffffed1017326d9d R10: ffff8880b9936ceb R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff8d3ff400 R14: 0000000000000001 R15: 0000000000000000 cpuidle_enter_state+0x82/0x500 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388 cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x315/0x3f0 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 start_secondary+0x200/0x290 arch/x86/kernel/smpboot.c:326 secondary_startup_64_no_verify+0x167/0x16b ---------------- Code disassembly (best guess): 0: 48 89 de mov %rbx,%rsi 3: 48 c7 c7 00 f2 3f 8d mov $0xffffffff8d3ff200,%rdi a: e8 aa ad 24 fa call 0xfa24adb9 f: e9 51 ff ff ff jmp 0xffffff65 14: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 19: f3 0f 1e fa endbr64 1d: 89 d0 mov %edx,%eax 1f: 66 90 xchg %ax,%ax 21: 0f 00 2d b1 90 a8 00 verw 0xa890b1(%rip) # 0xa890d9 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 33: 00 00 00 00 37: 66 90 xchg %ax,%ax 39: f3 0f 1e fa endbr64 3d: 89 d0 mov %edx,%eax 3f: fb sti