------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at net/ipv4/route.c:1241 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1241 Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.10.0-rc2-syzkaller-00064-g71d7b52cc33b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1241 Code: f3 0f 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 eb 55 b3 f7 66 90 e8 e4 55 b3 f7 48 89 df be 02 00 00 00 e8 c7 bf 6d 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:ffffc90000a18680 EFLAGS: 00010286 RAX: 1619a1df1b6f3600 RBX: ffff888023d2fa00 RCX: ffffffff8172d78a RDX: dffffc0000000000 RSI: ffffffff8bcabb80 RDI: ffffffff8c1ff340 RBP: 0000000000000001 R08: ffffffff92fa8617 R09: 1ffffffff25f50c2 R10: dffffc0000000000 R11: fffffbfff25f50c3 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888023728000 R15: ffff888017b29380 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f07b979c090 CR3: 0000000017f64000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> ip_local_out net/ipv4/ip_output.c:129 [inline] ip_send_skb net/ipv4/ip_output.c:1492 [inline] ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1512 __icmp_send+0xf89/0x14e0 net/ipv4/icmp.c:777 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+0x8a5/0xfd0 net/core/neighbour.c:1148 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 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:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 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:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:113 Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d5 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 25 f5 a2 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246 RAX: ffff888017ae8000 RBX: ffff88801c2b4864 RCX: 00000000000222a1 RDX: 0000000000000001 RSI: ffff88801c2b4800 RDI: ffff88801c2b4864 RBP: 000000000003a5b8 R08: ffff8880b9537d0b R09: 1ffff110172a6fa1 R10: dffffc0000000000 R11: ffffffff8b8689f0 R12: ffff88801d320800 R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eace160 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707 cpuidle_enter_state+0x112/0x480 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x375/0x5d0 kernel/sched/idle.c:332 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:430 start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313 common_startup_64+0x13e/0x147 </TASK> ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 65 48 8b 04 25 00 d5 mov %gs:0x3d500,%rax 10: 03 00 12: 48 f7 00 08 00 00 00 testq $0x8,(%rax) 19: 75 10 jne 0x2b 1b: 66 90 xchg %ax,%ax 1d: 0f 00 2d 25 f5 a2 00 verw 0xa2f525(%rip) # 0xa2f549 24: f3 0f 1e fa endbr64 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: cc int3 2d: cc int3 2e: cc int3 2f: cc int3 30: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 37: 00 00 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop