------------[ cut here ]------------
WARNING: CPU: 0 PID: 11 at net/ipv4/route.c:1261 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1261
Modules linked in:
CPU: 0 PID: 11 Comm: kworker/u8:1 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1261
Code: f3 0f 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 0b e1 c0 f7 66 90 e8 04 e1 c0 f7 48 89 df be 02 00 00 00 e8 27 80 6e 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: f8b36853744c8a00 RBX: ffff88801f801780 RCX: ffffffff81720c2a
RDX: dffffc0000000000 RSI: ffffffff8baac1e0 RDI: ffffffff8bfed360
RBP: 0000000000000001 R08: ffffffff92ce1597 R09: 1ffffffff259c2b2
R10: dffffc0000000000 R11: fffffbfff259c2b3 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888058441cc0 R15: ffff888016f38d00
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f862f97c038 CR3: 00000000241ea000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000c40a DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
ip_local_out net/ipv4/ip_output.c:129 [inline]
ip_send_skb net/ipv4/ip_output.c:1493 [inline]
ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1513
__icmp_send+0xfb0/0x1500 net/ipv4/icmp.c:770
ipv4_send_dest_unreach net/ipv4/route.c:1241 [inline]
ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1248
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:1059
neigh_timer_handler+0x8a5/0xfb0 net/core/neighbour.c:1146
call_timer_fn+0x17e/0x600 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1843 [inline]
__run_timers kernel/time/timer.c:2408 [inline]
__run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2419
run_timer_base kernel/time/timer.c:2428 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2438
__do_softirq+0x2bc/0x943 kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:750 [inline]
RIP: 0010:batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
RIP: 0010:batadv_nc_worker+0xe1/0x610 net/batman-adv/network-coding.c:719
Code: 00 00 4c 89 f3 49 03 2e e8 6c c7 3b f6 48 8d 05 00 00 00 00 48 c7 c7 20 20 13 8e 31 f6 31 d2 b9 02 00 00 00 45 31 c0 45 31 c9 <48> 89 44 24 10 50 e8 a4 1f 31 f6 48 83 c4 08 e8 bb c0 33 00 41 89
RSP: 0018:ffffc90000107b58 EFLAGS: 00000246
RAX: ffffffff8b40799b RBX: ffff88801f11e3c0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e132020
RBP: ffff888024878280 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f0e59e R12: ffff888062ee4ca0
R13: 0000000000000050 R14: ffff88801f11e3c0 R15: dffffc0000000000
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 4c 89 f3 mov %r14,%rbx
5: 49 03 2e add (%r14),%rbp
8: e8 6c c7 3b f6 call 0xf63bc779
d: 48 8d 05 00 00 00 00 lea 0x0(%rip),%rax # 0x14
14: 48 c7 c7 20 20 13 8e mov $0xffffffff8e132020,%rdi
1b: 31 f6 xor %esi,%esi
1d: 31 d2 xor %edx,%edx
1f: b9 02 00 00 00 mov $0x2,%ecx
24: 45 31 c0 xor %r8d,%r8d
27: 45 31 c9 xor %r9d,%r9d
* 2a: 48 89 44 24 10 mov %rax,0x10(%rsp) <-- trapping instruction
2f: 50 push %rax
30: e8 a4 1f 31 f6 call 0xf6311fd9
35: 48 83 c4 08 add $0x8,%rsp
39: e8 bb c0 33 00 call 0x33c0f9
3e: 41 rex.B
3f: 89 .byte 0x89