------------[ cut here ]------------ WARNING: CPU: 0 PID: 3546 at net/ipv4/route.c:1241 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Modules linked in: CPU: 0 UID: 0 PID: 3546 Comm: kworker/u8:10 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Workqueue: netns cleanup_net RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 8b 3d 73 f7 66 90 e8 84 3d 73 f7 31 ff 48 89 de ba 02 00 00 00 e8 c5 b4 6a ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 0f 1e RSP: 0018:ffffc90000007680 EFLAGS: 00010286 RAX: 9dabc8a744b33800 RBX: ffff88804aa7a500 RCX: ffffffff8170cfaa RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c610ce0 RBP: 0000000000000001 R08: ffffffff942d089f R09: ffffffff8a21ac9b R10: dffffc0000000000 R11: fffffbfff285a114 R12: dffffc0000000000 R13: ffffc900000078f8 R14: ffff88807b4b3b00 R15: ffff88801b7b1b00 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6578137a8c CR3: 0000000069214000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_local_out net/ipv4/ip_output.c:130 [inline] ip_send_skb net/ipv4/ip_output.c:1496 [inline] ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1516 __icmp_send+0x1017/0x15c0 net/ipv4/icmp.c:780 ipv4_send_dest_unreach net/ipv4/route.c:1221 [inline] ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1228 dst_link_failure include/net/dst.h:429 [inline] arp_error_report+0x114/0x160 net/ipv4/arp.c:296 neigh_invalidate+0x244/0x470 net/core/neighbour.c:1061 neigh_timer_handler+0x8a5/0xfe0 net/core/neighbour.c:1148 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1845 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_flush_all+0x996/0xeb0 Code: 48 21 c3 0f 85 16 02 00 00 e8 26 7d 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 17 7d 20 00 eb 06 e8 10 7d 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 56 59 8a 00 4c 8b RSP: 0018:ffffc9000c1cef00 EFLAGS: 00000293 RAX: ffffffff81746d00 RBX: ffffffff8f1826b8 RCX: ffff8880322c1e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000c1cf0b0 R08: ffffffff81746cd7 R09: 1ffffffff285a100 R10: dffffc0000000000 R11: fffffbfff285a101 R12: ffffffff8f182660 R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc9000c1cf100 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline] console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3279 vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2407 _printk+0xd5/0x120 kernel/printk/printk.c:2432 netdev_info+0x122/0x170 net/core/dev.c:11872 __bond_release_one+0x51b/0x1280 drivers/net/bonding/bond_main.c:2538 bond_slave_netdev_event drivers/net/bonding/bond_main.c:4025 [inline] bond_netdev_event+0x51c/0xf20 drivers/net/bonding/bond_main.c:4143 notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] unregister_netdevice_many_notify+0xedd/0x1da0 net/core/dev.c:11407 cleanup_net+0x75d/0xcc0 net/core/net_namespace.c:621 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---------------- Code disassembly (best guess): 0: 48 21 c3 and %rax,%rbx 3: 0f 85 16 02 00 00 jne 0x21f 9: e8 26 7d 20 00 call 0x207d34 e: 4c 8b 7c 24 10 mov 0x10(%rsp),%r15 13: 4d 85 f6 test %r14,%r14 16: 75 07 jne 0x1f 18: e8 17 7d 20 00 call 0x207d34 1d: eb 06 jmp 0x25 1f: e8 10 7d 20 00 call 0x207d34 24: fb sti 25: 48 8b 5c 24 18 mov 0x18(%rsp),%rbx * 2a: 48 8b 44 24 30 mov 0x30(%rsp),%rax <-- trapping instruction 2f: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 34: 74 08 je 0x3e 36: 48 89 df mov %rbx,%rdi 39: e8 56 59 8a 00 call 0x8a5994 3e: 4c rex.WR 3f: 8b .byte 0x8b