------------[ cut here ]------------
WARNING: CPU: 0 PID: 11699 at net/ipv4/route.c:1261 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1261
Modules linked in:
CPU: 0 PID: 11699 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-05204-g237bb5f7f7f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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 0b 25 c5 f7 66 90 e8 04 25 c5 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: 39b96ad8a6929100 RBX: ffff88807baf8280 RCX: ffffffff81720c2a
RDX: dffffc0000000000 RSI: ffffffff8baac220 RDI: ffffffff8bfec660
RBP: 0000000000000001 R08: ffffffff92cc7597 R09: 1ffffffff2598eb2
R10: dffffc0000000000 R11: fffffbfff2598eb3 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88803114b980 R15: ffff888016b20d00
FS: 000055555b864480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5d333ad988 CR3: 000000002923a000 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: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:ext4_reserve_inode_write+0x222/0x360 fs/ext4/inode.c:5731
Code: 3d ff 45 85 ff 74 14 e8 fc 58 3d ff 49 be 00 00 00 00 00 fc ff df e9 cd 00 00 00 49 be 00 00 00 00 00 fc ff df 43 80 3c 34 00 <48> 8b 5c 24 18 74 08 48 89 df e8 0f 9d a0 ff 4c 8b 3b 48 8b 5c 24
RSP: 0018:ffffc9000313f2c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000313f300 RCX: 39b96ad8a6929100
RDX: ffff88803592da00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000313f370 R08: ffffffff8257976a R09: 1ffff1100f9cbdb3
R10: dffffc0000000000 R11: ffffed100f9cbdb4 R12: 1ffff11010c96b9b
R13: ffff8880864b5cb0 R14: dffffc0000000000 R15: 0000000000000000
__ext4_mark_inode_dirty+0x1db/0x870 fs/ext4/inode.c:5905
ext4_dirty_inode+0xce/0x110 fs/ext4/inode.c:5942
__mark_inode_dirty+0x309/0xdb0 fs/fs-writeback.c:2477
mark_inode_dirty_sync include/linux/fs.h:2408 [inline]
dquot_free_space include/linux/quotaops.h:380 [inline]
dquot_free_block include/linux/quotaops.h:390 [inline]
ext4_mb_clear_bb fs/ext4/mballoc.c:6512 [inline]
ext4_free_blocks+0x15aa/0x23c0 fs/ext4/mballoc.c:6631
ext4_remove_blocks fs/ext4/extents.c:2521 [inline]
ext4_ext_rm_leaf fs/ext4/extents.c:2686 [inline]
ext4_ext_remove_space+0x216e/0x4db0 fs/ext4/extents.c:2934
ext4_ext_truncate+0x159/0x2b0 fs/ext4/extents.c:4440
ext4_truncate+0xa08/0x1130 fs/ext4/inode.c:4146
ext4_evict_inode+0x8ff/0xf30 fs/ext4/inode.c:258
evict+0x2a8/0x630 fs/inode.c:667
d_delete_notify include/linux/fsnotify.h:301 [inline]
vfs_rmdir+0x38f/0x4c0 fs/namei.c:4220
do_rmdir+0x3b5/0x580 fs/namei.c:4266
__do_sys_unlinkat fs/namei.c:4442 [inline]
__se_sys_unlinkat fs/namei.c:4436 [inline]
__x64_sys_unlinkat+0xe0/0xf0 fs/namei.c:4436
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fdbc987d587
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 07 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
RSP: 002b:00007ffecdad01d8 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007fdbc987d587
RDX: 0000000000000200 RSI: 00007ffecdad1350 RDI: 00000000ffffff9c
RBP: 00007fdbc98c93b9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffecdad1350
R13: 00007fdbc98c93b9 R14: 000000000006429f R15: 0000000000000008
----------------
Code disassembly (best guess):
0: 3d ff 45 85 ff cmp $0xff8545ff,%eax
5: 74 14 je 0x1b
7: e8 fc 58 3d ff call 0xff3d5908
c: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
13: fc ff df
16: e9 cd 00 00 00 jmp 0xe8
1b: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
22: fc ff df
25: 43 80 3c 34 00 cmpb $0x0,(%r12,%r14,1)
* 2a: 48 8b 5c 24 18 mov 0x18(%rsp),%rbx <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 0f 9d a0 ff call 0xffa09d48
39: 4c 8b 3b mov (%rbx),%r15
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 5c pop %rsp
3f: 24 .byte 0x24