------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at net/ipv4/route.c:1261 ip_rt_bug+0x29/0x120 net/ipv4/route.c:1261 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.7.0-rc3-syzkaller-00805-g5a08d0065a91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:ip_rt_bug+0x29/0x120 net/ipv4/route.c:1261 Code: 90 f3 0f 1e fa 41 54 55 53 48 89 d3 48 83 ec 08 e8 3c 66 99 f8 66 90 e8 35 66 99 f8 be 02 00 00 00 48 89 df e8 48 fe 7a ff 90 <0f> 0b 90 48 83 c4 08 31 c0 5b 5d 41 5c c3 e8 14 66 99 f8 48 8d 7b RSP: 0018:ffffc900000077c8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88801f5cf8c0 RCX: ffffc90000007740 RDX: ffffffff8cc95900 RSI: ffffffff88ee2c28 RDI: ffffffff8b2f13c0 RBP: ffff88801f5cf8c0 R08: 0000000000000001 R09: fffffbfff23e2be2 R10: ffffffff91f15f17 R11: ffffffff8a83aeca R12: ffff888040a00000 R13: ffff8880196b0d00 R14: 0000000000000000 R15: ffff88801f5cf918 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000207b9000 CR3: 00000000412e5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dst_output include/net/dst.h:451 [inline] ip_local_out net/ipv4/ip_output.c:129 [inline] ip_send_skb net/ipv4/ip_output.c:1489 [inline] ip_push_pending_frames+0x125/0x2a0 net/ipv4/ip_output.c:1509 icmp_push_reply+0x313/0x460 net/ipv4/icmp.c:389 __icmp_send+0xd76/0x1760 net/ipv4/icmp.c:770 ipv4_send_dest_unreach net/ipv4/route.c:1241 [inline] ipv4_link_failure+0x408/0xb60 net/ipv4/route.c:1248 dst_link_failure include/net/dst.h:430 [inline] arp_error_report+0xcf/0x1c0 net/ipv4/arp.c:296 neigh_invalidate+0x21c/0x560 net/core/neighbour.c:1052 neigh_timer_handler+0xbd9/0xf50 net/core/neighbour.c:1139 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x764/0xb20 kernel/time/timer.c:2022 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035 __do_softirq+0x21a/0x8de 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+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 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:acpi_safe_halt+0x1b/0x20 drivers/acpi/processor_idle.c:113 Code: ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 04 25 c0 bc 03 00 48 8b 00 a8 08 75 0c 66 90 0f 00 2d b7 1b ba 00 fb f4 c3 0f 1f 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb 9f RSP: 0018:ffffffff8cc07d68 EFLAGS: 00000246 RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8a800837 RDX: 0000000000000001 RSI: ffff888018252800 RDI: ffff888018252864 RBP: ffff888018252864 R08: 0000000000000001 R09: ffffed1017306dbd R10: ffff8880b9836deb R11: 0000000000000000 R12: ffff888143a92800 R13: ffffffff8db1cf20 R14: 0000000000000000 R15: 0000000000000000 acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:707 cpuidle_enter_state+0x83/0x500 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+0x319/0x400 kernel/sched/idle.c:282 cpu_startup_entry+0x50/0x60 kernel/sched/idle.c:380 rest_init+0x16f/0x2b0 init/main.c:730 arch_call_rest_init+0x13/0x30 init/main.c:827 start_kernel+0x39f/0x480 init/main.c:1072 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:555 x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:536 secondary_startup_64_no_verify+0x166/0x16b ---------------- Code disassembly (best guess): 0: ed in (%dx),%eax 1: c3 ret 2: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 00 d: 66 90 xchg %ax,%ax f: 65 48 8b 04 25 c0 bc mov %gs:0x3bcc0,%rax 16: 03 00 18: 48 8b 00 mov (%rax),%rax 1b: a8 08 test $0x8,%al 1d: 75 0c jne 0x2b 1f: 66 90 xchg %ax,%ax 21: 0f 00 2d b7 1b ba 00 verw 0xba1bb7(%rip) # 0xba1bdf 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: 0f 1f 00 nopl (%rax) 2f: 0f b6 47 08 movzbl 0x8(%rdi),%eax 33: 3c 01 cmp $0x1,%al 35: 74 0b je 0x42 37: 3c 02 cmp $0x2,%al 39: 74 05 je 0x40 3b: 8b 7f 04 mov 0x4(%rdi),%edi 3e: eb 9f jmp 0xffffffdf