------------[ cut here ]------------ WARNING: CPU: 1 PID: 29261 at net/ipv4/route.c:1261 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1261 Modules linked in: CPU: 1 PID: 29261 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #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 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:ffffc90000a08680 EFLAGS: 00010286 RAX: 202f285b69398400 RBX: ffff88801edc5a00 RCX: ffffffff81720c2a RDX: dffffc0000000000 RSI: ffffffff8baac1e0 RDI: ffffffff8bfed360 RBP: 0000000000000001 R08: ffffffff92ce1597 R09: 1ffffffff259c2b2 R10: dffffc0000000000 R11: fffffbfff259c2b3 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88802339b980 R15: ffff888016359380 FS: 00007f403e5c76c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32624000 CR3: 000000001be8c000 CR4: 00000000003526f0 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:stack_depot_save_flags+0x3e/0x860 lib/stackdepot.c:652 Code: 04 0f 83 94 03 00 00 89 cb 89 d5 48 89 7c 24 10 e8 07 dd a1 fc 41 89 c1 31 c0 45 85 c9 0f 84 61 03 00 00 80 3d 22 74 9f 0f 00 <0f> 85 54 03 00 00 89 2c 24 89 5c 24 0c 43 8d 34 09 46 8d 34 cd 7b RSP: 0018:ffffc9000536fa50 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8b7f3533 RDX: 0000000000000cc0 RSI: 000000000000000a RDI: ffffc9000536fab0 RBP: 0000000000000cc0 R08: ffffffff81372702 R09: 000000000000000a R10: dffffc0000000000 R11: fffffbfff1f0e59e R12: ffff88802c922300 R13: ffff8880186fcc80 R14: 0000000000000cc0 R15: ffffc9000536fab0 kasan_save_stack mm/kasan/common.c:48 [inline] kasan_save_track+0x51/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3798 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc_lru+0x178/0x350 mm/slub.c:3864 alloc_inode_sb include/linux/fs.h:3088 [inline] sock_alloc_inode+0x28/0xc0 net/socket.c:308 alloc_inode fs/inode.c:261 [inline] new_inode_pseudo+0x69/0x1e0 fs/inode.c:1007 sock_alloc net/socket.c:634 [inline] __sock_create+0x123/0x920 net/socket.c:1535 sock_create net/socket.c:1622 [inline] __sys_socket_create net/socket.c:1659 [inline] __sys_socket+0x150/0x3c0 net/socket.c:1706 __do_sys_socket net/socket.c:1720 [inline] __se_sys_socket net/socket.c:1718 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1718 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f403d87de69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f403e5c70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f403d9abf80 RCX: 00007f403d87de69 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007f403d8ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f403d9abf80 R15: 00007f403dacfa48 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 0f 83 94 03 00 00 jae 0x39a 6: 89 cb mov %ecx,%ebx 8: 89 d5 mov %edx,%ebp a: 48 89 7c 24 10 mov %rdi,0x10(%rsp) f: e8 07 dd a1 fc call 0xfca1dd1b 14: 41 89 c1 mov %eax,%r9d 17: 31 c0 xor %eax,%eax 19: 45 85 c9 test %r9d,%r9d 1c: 0f 84 61 03 00 00 je 0x383 22: 80 3d 22 74 9f 0f 00 cmpb $0x0,0xf9f7422(%rip) # 0xf9f744b * 29: 0f 85 54 03 00 00 jne 0x383 <-- trapping instruction 2f: 89 2c 24 mov %ebp,(%rsp) 32: 89 5c 24 0c mov %ebx,0xc(%rsp) 36: 43 8d 34 09 lea (%r9,%r9,1),%esi 3a: 46 rex.RX 3b: 8d .byte 0x8d 3c: 34 cd xor $0xcd,%al 3e: 7b .byte 0x7b