------------[ cut here ]------------
WARNING: CPU: 1 PID: 8714 at net/ipv4/route.c:1241 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1241
Modules linked in:
CPU: 1 PID: 8714 Comm: syz.4.866 Not tainted 6.10.0-rc7-syzkaller-00256-gd0d0cd380055 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 4b 91 b3 f7 66 90 e8 44 91 b3 f7 48 89 df be 02 00 00 00 e8 37 c2 6d ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f e9 0e aa cd 01 f3 0f 1e
RSP: 0018:ffffc90000a18680 EFLAGS: 00010286
RAX: b84963f3f0e6ff00 RBX: ffff88802ed04140 RCX: ffffffff8172daca
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: ffffffff8c202900
RBP: 0000000000000001 R08: ffffffff92fad617 R09: 1ffffffff25f5ac2
R10: dffffc0000000000 R11: fffffbfff25f5ac3 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888023093980 R15: ffff8880163b1380
FS: 00007f0c0fc8d6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000202b6030 CR3: 000000002e758000 CR4: 0000000000350ef0
Call Trace:
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+0x116/0x160 net/ipv4/arp.c:296
neigh_invalidate+0x246/0x470 net/core/neighbour.c:1061
neigh_timer_handler+0x8a5/0xfd0 net/core/neighbour.c:1148
call_timer_fn+0x190/0x650 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+0x2c6/0x970 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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_get_return_address+0x5f/0xc0 arch/x86/kernel/unwind_orc.c:369
Code: 55 00 85 ed 74 4a 48 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89 df e8 8b ff ba 00 48 8b 3b e8 c3 45 21 00 89 c5 <31> ff 89 c6 e8 c8 3d 55 00 85 ed 74 20 e8 7f 39 55 00 43 80 3c 37
RSP: 0018:ffffc900042a66f8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc900042a6768 RCX: ffffffff9103b000
RDX: ffffffff911d2e01 RSI: 0000000000000001 RDI: ffffffff894d8f64
RBP: 0000000000000001 R08: ffffffff8140ee67 R09: ffffffff8141095f
R10: 0000000000000003 R11: ffff88807c2a1e00 R12: ffff88807c2a1e00
R13: ffffffff8181de00 R14: dffffc0000000000 R15: 1ffff92000854ced
arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__set_page_owner+0x92/0x800 mm/page_owner.c:320
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1473
prep_new_page mm/page_alloc.c:1481 [inline]
get_page_from_freelist+0x2e4c/0x2f10 mm/page_alloc.c:3425
__alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4683
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
vma_alloc_folio_noprof+0xf3/0x1f0 mm/mempolicy.c:2304
folio_prealloc+0x31/0x170
wp_page_copy mm/memory.c:3285 [inline]
do_wp_page+0x11cc/0x52f0 mm/memory.c:3677
handle_pte_fault+0x117e/0x7090 mm/memory.c:5397
__handle_mm_fault mm/memory.c:5524 [inline]
handle_mm_fault+0x10df/0x1ba0 mm/memory.c:5689
do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__put_user_nocheck_4+0x7/0x20 arch/x86/lib/putuser.S:97
Code: d9 0f 01 cb 89 01 31 c9 0f 01 ca e9 5e f8 2c 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 01 cb <89> 01 31 c9 0f 01 ca e9 38 f8 2c 00 66 2e 0f 1f 84 00 00 00 00 00
vkms_vblank_simulate: vblank timer overrun
RSP: 0018:ffffc900042a78f8 EFLAGS: 00050202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000202b6030
RDX: ffff88807c2a1e00 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc900042a7a70 R08: ffffffff894d8163 R09: 1ffff92000854ed0
R10: dffffc0000000000 R11: fffff52000854ed1 R12: dffffc0000000000
R13: 0000000000000002 R14: 0000000000000000 R15: 00000000202b6000
____sys_recvmsg+0x2b9/0x470 net/socket.c:2817
___sys_recvmsg net/socket.c:2846 [inline]
do_recvmmsg+0x474/0xae0 net/socket.c:2940
__sys_recvmmsg net/socket.c:3019 [inline]
__do_sys_recvmmsg net/socket.c:3042 [inline]
__se_sys_recvmmsg net/socket.c:3035 [inline]
__x64_sys_recvmmsg+0x199/0x250 net/socket.c:3035
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: 0033:0x7f0c0ef75bd9
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:00007f0c0fc8d048 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f0c0f104038 RCX: 00007f0c0ef75bd9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f0c0efe4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0c0f104038 R15: 00007ffe76adc208
----------------
Code disassembly (best guess):
0: 55 push %rbp
1: 00 85 ed 74 4a 48 add %al,0x484a74ed(%rbp)
7: 83 c3 48 add $0x48,%ebx
a: 49 89 df mov %rbx,%r15
d: 49 c1 ef 03 shr $0x3,%r15
11: 43 80 3c 37 00 cmpb $0x0,(%r15,%r14,1)
16: 74 08 je 0x20
18: 48 89 df mov %rbx,%rdi
1b: e8 8b ff ba 00 call 0xbaffab
20: 48 8b 3b mov (%rbx),%rdi
23: e8 c3 45 21 00 call 0x2145eb
28: 89 c5 mov %eax,%ebp
* 2a: 31 ff xor %edi,%edi <-- trapping instruction
2c: 89 c6 mov %eax,%esi
2e: e8 c8 3d 55 00 call 0x553dfb
33: 85 ed test %ebp,%ebp
35: 74 20 je 0x57
37: e8 7f 39 55 00 call 0x5539bb
3c: 43 rex.XB
3d: 80 .byte 0x80
3e: 3c 37 cmp $0x37,%al