------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out WARNING: CPU: 1 PID: 153 at net/sched/sch_generic.c:526 dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Modules linked in: CPU: 1 PID: 153 Comm: kworker/1:2 Not tainted 6.1.84-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: events linkwatch_event RIP: 0010:dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Code: ed f8 c6 05 7f 26 c2 05 01 48 8b 1c 24 48 89 df e8 25 62 e5 ff 48 c7 c7 80 de e3 8b 48 89 de 48 89 c2 44 89 f1 e8 f0 2b b5 f8 <0f> 0b e9 8b fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c1 fb ff RSP: 0018:ffffc900001e0b00 EFLAGS: 00010246 RAX: d00b679c2e225200 RBX: ffff888075ab6000 RCX: ffff888015b05940 RDX: 0000000000000102 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000ffffcb80 R08: ffffffff81527eae R09: ffffed1017324f1c R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100eb56c89 R13: 00000000ffffc5d2 R14: 0000000000000000 R15: 0000000000000110 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e926789950 CR3: 000000005d06d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:console_emit_next_record+0xd67/0x1000 kernel/printk/printk.c:2786 Code: 32 1c 00 44 0f b6 74 24 1f 48 83 7c 24 30 00 75 07 e8 0d 32 1c 00 eb 06 e8 06 32 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <43> c7 04 2c 00 00 00 00 4b c7 44 2c 0a 00 00 00 00 4b c7 44 2c 12 RSP: 0018:ffffc90002f0f460 EFLAGS: 00000293 RAX: ffffffff816e54ea RBX: ffffffff816e522c RCX: ffff888015b05940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002f0f710 R08: ffffffff816e54c2 R09: fffffbfff2093045 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff920005e1ea0 R14: 0000000000000001 R15: 0000000000000000 console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906 vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303 _printk+0xd1/0x111 kernel/printk/printk.c:2328 addrconf_notify+0xace/0xf60 net/ipv6/addrconf.c:3661 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455 call_netdevice_notifiers_info net/core/dev.c:1970 [inline] netdev_state_change+0x1a3/0x250 net/core/dev.c:1359 linkwatch_do_dev+0x10c/0x160 net/core/link_watch.c:168 __linkwatch_run_queue+0x448/0x6b0 net/core/link_watch.c:221 linkwatch_event+0x48/0x50 net/core/link_watch.c:264 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307 ---------------- Code disassembly (best guess): 0: 32 1c 00 xor (%rax,%rax,1),%bl 3: 44 0f b6 74 24 1f movzbl 0x1f(%rsp),%r14d 9: 48 83 7c 24 30 00 cmpq $0x0,0x30(%rsp) f: 75 07 jne 0x18 11: e8 0d 32 1c 00 call 0x1c3223 16: eb 06 jmp 0x1e 18: e8 06 32 1c 00 call 0x1c3223 1d: fb sti 1e: 48 c7 84 24 a0 00 00 movq $0x45e0360e,0xa0(%rsp) 25: 00 0e 36 e0 45 * 2a: 43 c7 04 2c 00 00 00 movl $0x0,(%r12,%r13,1) <-- trapping instruction 31: 00 32: 4b c7 44 2c 0a 00 00 movq $0x0,0xa(%r12,%r13,1) 39: 00 00 3b: 4b rex.WXB 3c: c7 .byte 0xc7 3d: 44 2c 12 rex.R sub $0x12,%al