------------[ cut here ]------------
WARNING: CPU: 0 PID: 11968 at net/ipv4/route.c:1254 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254
Modules linked in:
CPU: 0 UID: 0 PID: 11968 Comm: syz.4.2015 Not tainted 6.12.0-syzkaller-10682-gb32913a5609a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254
Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 4b 95 6b f7 66 90 e8 44 95 6b f7 31 ff 48 89 de ba 02 00 00 00 e8 35 3e 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: 57b22fca87f21c00 RBX: ffff888033cbc780 RCX: ffffffff819dabcc
RDX: dffffc0000000000 RSI: ffffffff8c615880 RDI: ffffffff8200d8bc
RBP: 0000000000000001 R08: ffffffff901e34b7 R09: 1ffffffff203c696
R10: dffffc0000000000 R11: fffffbfff203c697 R12: dffffc0000000000
R13: ffffc900000078f8 R14: ffff8880647fbc80 R15: ffff8880222e9b00
FS:  00007fd5e48cc6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555568376808 CR3: 000000007e7ae000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb net/ipv4/ip_output.c:1505 [inline]
 ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1525
 __icmp_send+0x1013/0x15c0 net/ipv4/icmp.c:779
 ipv4_send_dest_unreach net/ipv4/route.c:1234 [inline]
 ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1241
 dst_link_failure include/net/dst.h:429 [inline]
 arp_error_report+0x114/0x160 net/ipv4/arp.c:296
 neigh_invalidate+0x247/0x470 net/core/neighbour.c:1010
 neigh_timer_handler+0x8a5/0xfe0 net/core/neighbour.c:1097
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1844 [inline]
 __run_timers kernel/time/timer.c:2418 [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+0xf7/0x220 kernel/softirq.c:655
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:dump_stack_lvl+0x301/0x360 lib/dump_stack.c:124
Code: b5 30 c3 f5 4d 21 f7 75 6f e8 cb 2b c3 f5 49 be 00 00 00 00 00 fc ff df 4d 85 e4 74 08 e8 b7 2b c3 f5 fb eb 05 e8 af 2b c3 f5 <48> c7 44 24 20 0e 36 e0 45 49 c7 04 1e 00 00 00 00 41 c7 44 1e 09
RSP: 0018:ffffc900035e75a0 EFLAGS: 00000293
RAX: ffffffff8bd2b8c9 RBX: 1ffff920006bceb8 RCX: ffff888052118000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900035e76a0 R08: ffffffff8bd2b8ab R09: 1ffffffff203c696
R10: dffffc0000000000 R11: fffffbfff203c697 R12: 0000000000000200
R13: 1ffff920006bce00 R14: dffffc0000000000 R15: 0000000000000000
 fail_dump lib/fault-inject.c:53 [inline]
 should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:154
 should_failslab+0xac/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4057 [inline]
 slab_alloc_node mm/slub.c:4133 [inline]
 kmem_cache_alloc_noprof+0x70/0x380 mm/slub.c:4160
 skb_clone+0x20c/0x390 net/core/skbuff.c:2084
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:300 [inline]
 __netlink_deliver_tap+0x3cc/0x7f0 net/netlink/af_netlink.c:325
 netlink_deliver_tap+0x19d/0x1b0 net/netlink/af_netlink.c:338
 netlink_deliver_tap_kernel net/netlink/af_netlink.c:347 [inline]
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x7c4/0x990 net/netlink/af_netlink.c:1347
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583
 ___sys_sendmsg net/socket.c:2637 [inline]
 __sys_sendmsg+0x269/0x350 net/socket.c:2669
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd5e3b7ff19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd5e48cc058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd5e3d45fa0 RCX: 00007fd5e3b7ff19
RDX: 0000000004000810 RSI: 0000000020001200 RDI: 0000000000000003
RBP: 00007fd5e48cc0a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fd5e3d45fa0 R15: 00007ffefc7e82c8
 </TASK>
----------------
Code disassembly (best guess):
   0:	b5 30                	mov    $0x30,%ch
   2:	c3                   	ret
   3:	f5                   	cmc
   4:	4d 21 f7             	and    %r14,%r15
   7:	75 6f                	jne    0x78
   9:	e8 cb 2b c3 f5       	call   0xf5c32bd9
   e:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  15:	fc ff df
  18:	4d 85 e4             	test   %r12,%r12
  1b:	74 08                	je     0x25
  1d:	e8 b7 2b c3 f5       	call   0xf5c32bd9
  22:	fb                   	sti
  23:	eb 05                	jmp    0x2a
  25:	e8 af 2b c3 f5       	call   0xf5c32bd9
* 2a:	48 c7 44 24 20 0e 36 	movq   $0x45e0360e,0x20(%rsp) <-- trapping instruction
  31:	e0 45
  33:	49 c7 04 1e 00 00 00 	movq   $0x0,(%r14,%rbx,1)
  3a:	00
  3b:	41                   	rex.B
  3c:	c7                   	.byte 0xc7
  3d:	44 1e                	rex.R (bad)
  3f:	09                   	.byte 0x9