------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at net/ipv4/route.c:1241 ip_rt_bug+0x2b/0x120 net/ipv4/route.c:1241
Modules linked in:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.11.0-rc3-syzkaller-00010-g6b4aa469f049 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ip_rt_bug+0x2b/0x120 net/ipv4/route.c:1241
Code: 0f 1e fa 41 54 55 53 48 89 d3 48 83 ec 08 e8 3c 42 1a f8 66 90 e8 35 42 1a f8 ba 02 00 00 00 48 89 de 31 ff e8 a6 4f 75 ff 90 <0f> 0b 90 48 83 c4 08 31 c0 5b 5d 41 5c c3 cc cc cc cc e8 0e 42 1a
RSP: 0018:ffffc900000077a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888047c7ec80 RCX: 1ffffffff28cdb88
RDX: ffffffff8da957c0 RSI: ffffffff89703a1a RDI: ffffffff8bb08ec0
RBP: ffff888047c7ec80 R08: 0000000000000001 R09: fffffbfff28c5aec
R10: ffffffff9462d767 R11: 0000000000000000 R12: ffff8880451a8000
R13: ffff88801b653400 R14: ffff88804bf72d00 R15: ffff888047c7ecd8
FS: 0000000000000000(0000) GS:ffff88806b000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003a000 CR3: 000000003db8c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
dst_output include/net/dst.h:450 [inline]
dst_output include/net/dst.h:448 [inline]
ip_local_out net/ipv4/ip_output.c:129 [inline]
ip_send_skb net/ipv4/ip_output.c:1495 [inline]
ip_push_pending_frames+0x3ad/0x5b0 net/ipv4/ip_output.c:1515
icmp_push_reply+0x308/0x440 net/ipv4/icmp.c:392
__icmp_send+0xe0e/0x19b0 net/ipv4/icmp.c:777
ipv4_send_dest_unreach net/ipv4/route.c:1221 [inline]
ipv4_link_failure+0x426/0xbc0 net/ipv4/route.c:1228
dst_link_failure include/net/dst.h:429 [inline]
arp_error_report+0xcf/0x1d0 net/ipv4/arp.c:296
neigh_invalidate+0x21e/0x570 net/core/neighbour.c:1061
neigh_timer_handler+0xc1d/0xf90 net/core/neighbour.c:1148
call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1843 [inline]
__run_timers+0x74b/0xaf0 kernel/time/timer.c:2417
__run_timer_base kernel/time/timer.c:2428 [inline]
__run_timer_base kernel/time/timer.c:2421 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2437
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2447
handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
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:92 [inline]
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:743
Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 43 6d 34 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffffff8da07e20 EFLAGS: 00000242
RAX: 000000000046e007 RBX: 0000000000000000 RCX: ffffffff8b121709
RDX: 0000000000000000 RSI: ffffffff8b4cc500 RDI: ffffffff8bb08ec0
RBP: fffffbfff1b52af8 R08: 0000000000000001 R09: ffffed100d606fd9
R10: ffff88806b037ecb R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8da957c0 R14: ffffffff9012de18 R15: 0000000000000000
default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:185 [inline]
do_idle+0x32c/0x3f0 kernel/sched/idle.c:326
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:424
rest_init+0x16b/0x2b0 init/main.c:747
start_kernel+0x3df/0x4c0 init/main.c:1103
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x148
----------------
Code disassembly (best guess):
0: 4c 01 c7 add %r8,%rdi
3: 4c 29 c2 sub %r8,%rdx
6: e9 72 ff ff ff jmp 0xffffff7d
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
16: 90 nop
17: 90 nop
18: 90 nop
19: 90 nop
1a: 90 nop
1b: f3 0f 1e fa endbr64
1f: 66 90 xchg %ax,%ax
21: 0f 00 2d 43 6d 34 00 verw 0x346d43(%rip) # 0x346d6b
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 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
37: 00 00 00 00
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop