------------[ cut here ]------------
WARNING: CPU: 0 PID: 12419 at net/ipv4/route.c:1261 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1261
Modules linked in:
CPU: 0 PID: 12419 Comm: syz-executor.2 Not tainted 6.9.0-rc2-next-20240403-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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 3b 5f b7 f7 66 90 e8 34 5f b7 f7 48 89 df be 02 00 00 00 e8 17 15 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: a52aca1280422900 RBX: ffff88807a15cc80 RCX: ffffffff8172543a
RDX: dffffc0000000000 RSI: ffffffff8bcad5c0 RDI: ffffffff8c1f7e20
RBP: 0000000000000001 R08: ffffffff92f3a5b7 R09: 1ffffffff25e74b6
R10: dffffc0000000000 R11: fffffbfff25e74b7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88802368b980 R15: ffff888016338d00
FS: 000055555f932480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffed387bc58 CR3: 0000000077984000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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+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+0x8a5/0xfd0 net/core/neighbour.c:1146
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:2429
run_timer_base kernel/time/timer.c:2438 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2448
__do_softirq+0x2c6/0x980 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:EXT4_SB fs/ext4/ext4.h:1760 [inline]
RIP: 0010:find_inode_bit+0xfe/0x5e0 fs/ext4/ialloc.c:726
Code: 4c 89 7c 24 30 43 80 3c 2f 00 74 08 4c 89 f7 e8 e8 55 a4 ff 4d 8b 3e 48 8b 04 24 42 80 3c 28 00 74 08 4c 89 e7 e8 d2 55 a4 ff <49> 8b 2c 24 48 83 c5 20 48 89 e8 48 c1 e8 03 42 80 3c 28 00 74 08
RSP: 0018:ffffc90008f879a8 EFLAGS: 00000246
RAX: 1ffff110054d44c7 RBX: ffff88802a6a4020 RCX: ffff88802552bc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802a6a4378
RBP: 1ffff11004b6c3b8 R08: ffffffff8255b912 R09: 1ffff11003ab9800
R10: dffffc0000000000 R11: ffffed1003ab9801 R12: ffff88802a6a2638
R13: dffffc0000000000 R14: ffffc90008f87b90 R15: 0000000000000000
__ext4_new_inode+0x1174/0x4390 fs/ext4/ialloc.c:1064
ext4_symlink+0x38d/0xb50 fs/ext4/namei.c:3395
vfs_symlink+0x137/0x2a0 fs/namei.c:4484
do_symlinkat+0x222/0x3a0 fs/namei.c:4510
__do_sys_symlinkat fs/namei.c:4526 [inline]
__se_sys_symlinkat fs/namei.c:4523 [inline]
__x64_sys_symlinkat+0x99/0xb0 fs/namei.c:4523
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7f0d4647d567
Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
vkms_vblank_simulate: vblank timer overrun
RSP: 002b:00007ffed387c828 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 00007ffed387c8f0 RCX: 00007f0d4647d567
RDX: 00007f0d464ca51b RSI: 00000000ffffff9c RDI: 00007f0d464c950e
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
----------------
Code disassembly (best guess):
0: 4c 89 7c 24 30 mov %r15,0x30(%rsp)
5: 43 80 3c 2f 00 cmpb $0x0,(%r15,%r13,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 e8 55 a4 ff call 0xffa455fc
14: 4d 8b 3e mov (%r14),%r15
17: 48 8b 04 24 mov (%rsp),%rax
1b: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
20: 74 08 je 0x2a
22: 4c 89 e7 mov %r12,%rdi
25: e8 d2 55 a4 ff call 0xffa455fc
* 2a: 49 8b 2c 24 mov (%r12),%rbp <-- trapping instruction
2e: 48 83 c5 20 add $0x20,%rbp
32: 48 89 e8 mov %rbp,%rax
35: 48 c1 e8 03 shr $0x3,%rax
39: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
3e: 74 08 je 0x48