------------[ cut here ]------------
WARNING: CPU: 0 PID: 21410 at net/ipv4/route.c:1261 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1261
Modules linked in:
CPU: 0 PID: 21410 Comm: syz-executor.1 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: e9c80180ea85e600 RBX: ffff88802b335140 RCX: ffffffff81720c2a
RDX: dffffc0000000000 RSI: ffffffff8baac220 RDI: ffffffff8bfec660
RBP: 0000000000000001 R08: ffffffff92cc7597 R09: 1ffffffff2598eb2
R10: dffffc0000000000 R11: fffffbfff2598eb3 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88808458d640 R15: ffff888016bc0d00
FS: 000055559459a480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555885f18f8 CR3: 000000006a8da000 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:kasan_check_range+0x1ba/0x290 mm/kasan/generic.c:189
Code: fb 48 8d 5d 07 48 85 ed 48 0f 49 dd 48 83 e3 f8 48 29 dd 74 12 41 80 3b 00 0f 85 a6 00 00 00 49 ff c3 48 ff cd 75 ee 5b 41 5c <41> 5e 41 5f 5d c3 cc cc cc cc 40 84 ed 75 5f f7 c5 00 ff 00 00 75
RSP: 0018:ffffc9000447f140 EFLAGS: 00000256
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81719a34
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8f86ae68
RBP: 0000000000000000 R08: ffffffff8f86ae6f R09: 1ffffffff1f0d5cd
R10: dffffc0000000000 R11: fffffbfff1f0d5ce R12: 1ffff9200088fe34
R13: dffffc0000000000 R14: dffffc0000000001 R15: fffffbfff1f0d5ce
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:505 [inline]
cpu_online include/linux/cpumask.h:1120 [inline]
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0xd4/0x530 kernel/locking/lockdep.c:5725
rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
rcu_read_lock include/linux/rcupdate.h:750 [inline]
page_ext_get+0x3d/0x2a0 mm/page_ext.c:508
page_table_check_set+0x5d/0x700 mm/page_table_check.c:109
__page_table_check_ptes_set+0x220/0x280 mm/page_table_check.c:196
page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
set_ptes include/linux/pgtable.h:241 [inline]
copy_present_pte mm/memory.c:993 [inline]
copy_pte_range mm/memory.c:1102 [inline]
copy_pmd_range mm/memory.c:1187 [inline]
copy_pud_range mm/memory.c:1224 [inline]
copy_p4d_range mm/memory.c:1248 [inline]
copy_page_range+0x2c7f/0x4240 mm/memory.c:1346
dup_mmap kernel/fork.c:747 [inline]
dup_mm kernel/fork.c:1687 [inline]
copy_mm+0x12f5/0x21b0 kernel/fork.c:1736
copy_process+0x187a/0x3df0 kernel/fork.c:2389
kernel_clone+0x21e/0x8d0 kernel/fork.c:2796
__do_sys_clone kernel/fork.c:2939 [inline]
__se_sys_clone kernel/fork.c:2923 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2923
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f30e747add3
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffd07c56348 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f30e747add3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055559459a750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: fb sti
1: 48 8d 5d 07 lea 0x7(%rbp),%rbx
5: 48 85 ed test %rbp,%rbp
8: 48 0f 49 dd cmovns %rbp,%rbx
c: 48 83 e3 f8 and $0xfffffffffffffff8,%rbx
10: 48 29 dd sub %rbx,%rbp
13: 74 12 je 0x27
15: 41 80 3b 00 cmpb $0x0,(%r11)
19: 0f 85 a6 00 00 00 jne 0xc5
1f: 49 ff c3 inc %r11
22: 48 ff cd dec %rbp
25: 75 ee jne 0x15
27: 5b pop %rbx
28: 41 5c pop %r12
* 2a: 41 5e pop %r14 <-- trapping instruction
2c: 41 5f pop %r15
2e: 5d pop %rbp
2f: c3 ret
30: cc int3
31: cc int3
32: cc int3
33: cc int3
34: 40 84 ed test %bpl,%bpl
37: 75 5f jne 0x98
39: f7 c5 00 ff 00 00 test $0xff00,%ebp
3f: 75 .byte 0x75