net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program syzkaller login: [ 22.074625] ================================================================== [ 22.075315] BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x303d/0x3170 [ 22.075935] Read of size 4 at addr ffff880039506898 by task syzkaller346209/3047 [ 22.076642] [ 22.076810] CPU: 1 PID: 3047 Comm: syzkaller346209 Not tainted 4.13.0-rc5-next-20170817+ #5 [ 22.085932] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 22.086563] Call Trace: [ 22.086770] dump_stack+0x194/0x257 [ 22.087062] ? arch_local_irq_restore+0x53/0x53 [ 22.087421] ? show_regs_print_info+0x65/0x65 [ 22.087763] ? lock_release+0xa40/0xa40 [ 22.088078] ? xfrm_state_find+0x303d/0x3170 [ 22.088407] print_address_description+0x73/0x250 [ 22.088800] ? xfrm_state_find+0x303d/0x3170 [ 22.089169] kasan_report+0x24e/0x340 [ 22.089484] __asan_report_load4_noabort+0x14/0x20 [ 22.089940] xfrm_state_find+0x303d/0x3170 [ 22.090279] ? xfrm_state_afinfo_get_rcu+0x160/0x160 [ 22.090683] ? lock_acquire+0x1d5/0x580 [ 22.091010] ? lock_acquire+0x1d5/0x580 [ 22.091344] ? __is_insn_slot_addr+0x1fc/0x330 [ 22.091817] ? lock_downgrade+0x990/0x990 [ 22.092164] ? lock_release+0xa40/0xa40 [ 22.092480] ? __read_once_size_nocheck.constprop.8+0x10/0x10 [ 22.092958] ? entry_SYSCALL_64_fastpath+0x1f/0xbe [ 22.093356] ? bpf_prog_kallsyms_find+0xbd/0x440 [ 22.094276] ? lock_acquire+0x1d5/0x580 [ 22.094604] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 22.095038] ? lock_acquire+0x1d5/0x580 [ 22.095378] ? lock_acquire+0x1d5/0x580 [ 22.095708] ? depot_save_stack+0x3b5/0x490 [ 22.096164] ? lock_downgrade+0x990/0x990 [ 22.096511] ? unwind_dump+0x4c0/0x4c0 [ 22.096831] ? do_raw_spin_trylock+0x190/0x190 [ 22.097273] xfrm_tmpl_resolve+0x309/0xc00 [ 22.097626] ? __xfrm_decode_session+0x100/0x100 [ 22.098008] ? save_stack+0xa3/0xd0 [ 22.098304] ? save_stack_trace+0x16/0x20 [ 22.098632] ? save_stack+0x43/0xd0 [ 22.098924] ? kasan_kmalloc+0xad/0xe0 [ 22.099242] ? kasan_slab_alloc+0x12/0x20 [ 22.099564] ? kmem_cache_alloc+0x12e/0x760 [ 22.099885] ? dst_alloc+0x11f/0x1a0 [ 22.100169] ? rt_dst_alloc+0xe9/0x540 [ 22.100458] ? ip_route_output_key_hash_rcu+0xa40/0x2c20 [ 22.100906] ? ip_route_output_key_hash+0x20b/0x370 [ 22.101335] ? ip_route_output_flow+0x26/0xa0 [ 22.101758] ? inet_csk_route_req+0x5d8/0x990 [ 22.102219] ? tcp_v4_send_synack+0x1e4/0x270 [ 22.102548] ? tcp_rtx_synack+0x119/0x2e0 [ 22.102889] ? inet_rtx_syn_ack+0x64/0xd0 [ 22.103232] ? tcp_check_req+0xae3/0x1620 [ 22.103575] ? tcp_v4_rcv+0x1e67/0x2e10 [ 22.103914] ? ip_local_deliver_finish+0x2e2/0xba0 [ 22.104313] ? ip_local_deliver+0x1ce/0x6d0 [ 22.104664] ? ip_rcv_finish+0x8db/0x19c0 [ 22.105028] ? ip_rcv+0xc3f/0x17d0 [ 22.105317] xfrm_resolve_and_create_bundle+0x186/0x24a0 [ 22.105776] ? __vfs_write+0x684/0x970 [ 22.106097] ? vfs_write+0x189/0x510 [ 22.106398] ? SyS_write+0xef/0x220 [ 22.106697] ? entry_SYSCALL_64_fastpath+0x1f/0xbe [ 22.107130] ? lock_release+0xa40/0xa40 [ 22.107455] ? xfrm_tmpl_resolve+0xc00/0xc00 [ 22.107831] ? fib_select_path+0x32a/0x1637 [ 22.108190] ? rt_cache_route+0x1a2/0x300 [ 22.108538] ? lock_acquire+0x1d5/0x580 [ 22.108888] ? lock_acquire+0x1d5/0x580 [ 22.109207] ? xfrm_sk_policy_lookup+0x2a6/0x3d0 [ 22.109591] ? lock_downgrade+0x990/0x990 [ 22.109941] ? lock_release+0xa40/0xa40 [ 22.110259] ? refcount_inc_not_zero+0xfe/0x180 [ 22.110634] ? refcount_add+0x60/0x60 [ 22.110964] ? xfrm_selector_match+0x3b/0xe00 [ 22.111336] ? xfrm_sk_policy_lookup+0x2cf/0x3d0 [ 22.111711] ? xfrm_selector_match+0xe00/0xe00 [ 22.112138] xfrm_lookup+0xefb/0x2540 [ 22.112444] ? xfrm_lookup+0xefb/0x2540 [ 22.112788] ? xfrm_policy_lookup_bytype.constprop.49+0x16f0/0x16f0 [ 22.113300] ? lock_acquire+0x1d5/0x580 [ 22.113631] ? __fib_validate_source+0x72d/0x1a10 [ 22.114318] ? netlbl_enabled+0x52/0xe0 [ 22.114641] ? netlbl_catmap_setrng+0xb0/0xb0 [ 22.115404] ? lock_release+0xa40/0xa40 [ 22.115723] ? lock_acquire+0x1d5/0x580 [ 22.116059] ? lock_acquire+0x1d5/0x580 [ 22.116368] ? ip_route_output_key_hash+0x229/0x370 [ 22.116763] ? lock_downgrade+0x990/0x990 [ 22.117105] ? lock_release+0xa40/0xa40 [ 22.117415] ? selinux_nf_register+0x30/0x30 [ 22.117763] ? selinux_sock_rcv_skb_compat+0x2f4/0x480 [ 22.118200] ? ip_route_output_key_hash+0x252/0x370 [ 22.118590] ? ip_route_output_key_hash_rcu+0x2c20/0x2c20 [ 22.119040] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 22.119448] xfrm_lookup_route+0x39/0x1a0 [ 22.119873] ip_route_output_flow+0x7c/0xa0 [ 22.120221] inet_csk_route_req+0x5d8/0x990 [ 22.120564] ? selinux_socket_sock_rcv_skb+0x388/0x870 [ 22.120983] tcp_v4_send_synack+0x1e4/0x270 [ 22.121329] ? selinux_sock_rcv_skb_compat+0x480/0x480 [ 22.121766] ? tcp_v4_send_check+0x90/0x90 [ 22.122101] ? lock_acquire+0x1d5/0x580 [ 22.122412] ? sk_filter_trim_cap+0x3f3/0x9b0 [ 22.122765] ? prandom_u32_state+0x13/0x180 [ 22.123111] tcp_rtx_synack+0x119/0x2e0 [ 22.123428] ? tcp_event_new_data_sent+0x2e0/0x2e0 [ 22.123823] ? tcp_v4_parse_md5_keys+0x2c0/0x2c0 [ 22.124206] inet_rtx_syn_ack+0x64/0xd0 [ 22.124546] tcp_check_req+0xae3/0x1620 [ 22.124883] ? tcp_openreq_init_rwin+0xae0/0xae0 [ 22.125360] ? refcount_inc_not_zero+0xfe/0x180 [ 22.125770] ? refcount_add+0x60/0x60 [ 22.126079] ? tcp_v4_reqsk_send_ack+0x3e0/0x3e0 [ 22.126450] ? tcp_filter+0x111/0x160 [ 22.126757] tcp_v4_rcv+0x1e67/0x2e10 [ 22.127061] ? lock_acquire+0x1d5/0x580 [ 22.127373] ? lock_acquire+0x1d5/0x580 [ 22.127701] ? tcp_v4_early_demux+0xa30/0xa30 [ 22.128063] ? ip_local_deliver+0x48c/0x6d0 [ 22.128408] ip_local_deliver_finish+0x2e2/0xba0 [ 22.128790] ? inet_del_offload+0x40/0x40 [ 22.129124] ip_local_deliver+0x1ce/0x6d0 [ 22.129442] ? ip_call_ra_chain+0x6d0/0x6d0 [ 22.129797] ? ip_route_input_noref+0x13c/0x1e0 [ 22.130169] ? ip_route_input_rcu+0x3210/0x3210 [ 22.130537] ? inet_del_offload+0x40/0x40 [ 22.130867] ip_rcv_finish+0x8db/0x19c0 [ 22.131182] ? iptable_nat_ipv4_fn+0x40/0x40 [ 22.131535] ? ip_local_deliver_finish+0xba0/0xba0 [ 22.131891] ? ip_rcv+0xf05/0x17d0 [ 22.132175] ? lock_downgrade+0x990/0x990 [ 22.132497] ? tcp_v4_send_synack+0x270/0x270 [ 22.132849] ? iptable_nat_ipv4_in+0x2c/0x40 [ 22.133198] ? nf_hook_slow+0x12d/0x290 [ 22.133507] ? nf_unregister_afinfo+0x150/0x150 [ 22.133875] ? lock_release+0xa40/0xa40 [ 22.134185] ? __read_once_size_nocheck.constprop.8+0x10/0x10 [ 22.134653] ip_rcv+0xc3f/0x17d0 [ 22.134954] ? ip_local_deliver+0x6d0/0x6d0 [ 22.136439] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 22.136863] ? lock_release+0xa40/0xa40 [ 22.137193] ? unwind_dump+0x4c0/0x4c0 [ 22.137509] ? ip_local_deliver_finish+0xba0/0xba0 [ 22.137910] ? ip_local_deliver+0x6d0/0x6d0 [ 22.138265] __netif_receive_skb_core+0x19af/0x33d0 [ 22.138673] ? unwind_get_return_address+0x61/0xa0 [ 22.139081] ? nf_ingress+0x9f0/0x9f0 [ 22.139404] ? save_stack+0xa3/0xd0 [ 22.139655] ? save_stack_trace+0x16/0x20 [ 22.139947] ? save_stack+0x43/0xd0 [ 22.140208] ? kasan_kmalloc+0xad/0xe0 [ 22.140470] ? kasan_slab_alloc+0x12/0x20 [ 22.140748] ? kmem_cache_alloc+0x12e/0x760 [ 22.141042] ? __build_skb+0x9d/0x450 [ 22.141297] ? build_skb+0x6f/0x260 [ 22.141543] ? tun_get_user+0x1daf/0x2150 [ 22.141823] ? tun_chr_write_iter+0xd8/0x190 [ 22.142123] ? __vfs_write+0x684/0x970 [ 22.142387] ? vfs_write+0x189/0x510 [ 22.142638] ? __skb_flow_get_ports+0x151/0x400 [ 22.142953] ? flow_get_u32_dst+0x130/0x130 [ 22.143257] ? __skb_flow_get_ports+0x151/0x400 [ 22.143585] ? __skb_flow_dissect+0xfa6/0x3ad0 [ 22.143964] ? __skb_flow_get_ports+0x400/0x400 [ 22.144377] ? lock_acquire+0x1d5/0x580 [ 22.144659] ? netif_receive_skb_internal+0x1d7/0x5e0 [ 22.145073] ? lock_downgrade+0x990/0x990 [ 22.145384] ? pvclock_read_flags+0x160/0x160 [ 22.145753] ? __build_skb+0x325/0x450 [ 22.146084] ? lock_acquire+0x1d5/0x580 [ 22.146472] ? lock_acquire+0x1d5/0x580 [ 22.146793] ? netif_receive_skb_internal+0x93/0x5e0 [ 22.147206] ? ktime_get_with_offset+0x2c1/0x420 [ 22.147598] ? lock_release+0xa40/0xa40 [ 22.147923] ? do_gettimeofday+0x190/0x190 [ 22.148284] ? __build_skb+0x450/0x450 [ 22.148603] __netif_receive_skb+0x2c/0x1b0 [ 22.148944] ? __netif_receive_skb+0x2c/0x1b0 [ 22.149437] netif_receive_skb_internal+0x10b/0x5e0 [ 22.149842] ? dev_cpu_dead+0xb00/0xb00 [ 22.150154] ? tun_net_xmit+0x1280/0x1280 [ 22.150483] netif_receive_skb+0xae/0x390 [ 22.150813] ? netif_receive_skb_internal+0x5e0/0x5e0 [ 22.151260] ? tun_rx_batched.isra.43+0x5bd/0x860 [ 22.151659] tun_rx_batched.isra.43+0x5e7/0x860 [ 22.152051] ? skb_get_hash_perturb+0x9d0/0x9d0 [ 22.152430] ? tun_sock_write_space+0x370/0x370 [ 22.152838] ? tun_free_netdev+0x1b0/0x1b0 [ 22.153192] tun_get_user+0x11dd/0x2150 [ 22.153524] ? tun_flow_update+0xf70/0xf70 [ 22.153871] ? lock_acquire+0x1d5/0x580 [ 22.154198] ? lock_acquire+0x1d5/0x580 [ 22.154524] ? __tun_get+0x1ab/0x2e0 [ 22.154827] ? lock_downgrade+0x990/0x990 [ 22.155169] ? lock_release+0xa40/0xa40 [ 22.155496] ? __fget+0x35c/0x570 [ 22.155783] ? __tun_get+0x1d4/0x2e0 [ 22.156138] ? tun_chr_close+0x60/0x60 [ 22.156495] tun_chr_write_iter+0xd8/0x190 [ 22.157261] __vfs_write+0x684/0x970 [ 22.157584] ? default_llseek+0x290/0x290 [ 22.157928] ? _cond_resched+0x14/0x30 [ 22.158288] ? avc_policy_seqno+0x9/0x20 [ 22.158625] ? selinux_file_permission+0x82/0x460 [ 22.159014] ? rw_verify_area+0xe5/0x2b0 [ 22.159368] ? __fdget_raw+0x20/0x20 [ 22.159727] vfs_write+0x189/0x510 [ 22.160054] SyS_write+0xef/0x220 [ 22.160335] ? SyS_read+0x220/0x220 [ 22.160632] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.161025] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 22.161468] RIP: 0033:0x405f81 [ 22.161738] RSP: 002b:00007f24f8731d80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 22.162439] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000405f81 [ 22.163039] RDX: 0000000000000036 RSI: 0000000020002000 RDI: 0000000000000003 [ 22.163680] RBP: 00007ffc25d22b00 R08: 0000000000000013 R09: 00007f24f8732700 [ 22.164321] R10: 00007f24f87329d0 R11: 0000000000000293 R12: 0000000000000000 [ 22.164932] R13: 0000000000000000 R14: 00007f24f87329c0 R15: 00007f24f8732700 [ 22.165549] [ 22.165681] The buggy address belongs to the page: [ 22.166081] page:ffffea0000e54180 count:0 mapcount:0 mapping: (null) index:0xffff880039506880 [ 22.166912] flags: 0x100000000000000() [ 22.167284] raw: 0100000000000000 0000000000000000 ffff880039506880 00000000ffffffff [ 22.167979] raw: dead000000000100 dead000000000200 0000000000000000 0000000000000000 [ 22.168701] page dumped because: kasan: bad access detected [ 22.169162] [ 22.169293] Memory state around the buggy address: [ 22.169723] ffff880039506780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.170390] ffff880039506800: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 [ 22.170941] >ffff880039506880: 00 00 00 f2 f3 f3 f3 f3 00 00 00 00 00 00 00 f1 [ 22.171449] ^ [ 22.171745] ffff880039506900: f1 f1 f1 00 00 00 00 00 00 00 00 00 00 f2 f2 f3 [ 22.172268] ffff880039506980: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.172779] ================================================================== [ 22.173290] Kernel panic - not syncing: panic_on_warn set ... [ 22.173290] [ 22.173308] CPU: 1 PID: 3047 Comm: syzkaller346209 Tainted: G B 4.13.0-rc5-next-20170817+ #5 [ 22.173314] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 22.173315] Call Trace: [ 22.173323] dump_stack+0x194/0x257 [ 22.173329] ? arch_local_irq_restore+0x53/0x53 [ 22.173335] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.173343] ? xfrm_state_find+0x3010/0x3170 [ 22.173349] panic+0x1e4/0x417 [ 22.173354] ? __warn+0x1d9/0x1d9 [ 22.173379] ? xfrm_state_find+0x303d/0x3170 [ 22.173384] kasan_end_report+0x50/0x50 [ 22.173388] kasan_report+0x137/0x340 [ 22.173396] __asan_report_load4_noabort+0x14/0x20 [ 22.173401] xfrm_state_find+0x303d/0x3170 [ 22.173417] ? xfrm_state_afinfo_get_rcu+0x160/0x160 [ 22.173441] ? lock_acquire+0x1d5/0x580 [ 22.173446] ? lock_acquire+0x1d5/0x580 [ 22.173451] ? __is_insn_slot_addr+0x1fc/0x330 [ 22.173458] ? lock_downgrade+0x990/0x990 [ 22.173465] ? lock_release+0xa40/0xa40 [ 22.173484] ? __read_once_size_nocheck.constprop.8+0x10/0x10 [ 22.173489] ? entry_SYSCALL_64_fastpath+0x1f/0xbe [ 22.173495] ? bpf_prog_kallsyms_find+0xbd/0x440 [ 22.173505] ? lock_acquire+0x1d5/0x580 [ 22.173527] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 22.173535] ? lock_acquire+0x1d5/0x580 [ 22.173540] ? lock_acquire+0x1d5/0x580 [ 22.173545] ? depot_save_stack+0x3b5/0x490 [ 22.173552] ? lock_downgrade+0x990/0x990 [ 22.173556] ? unwind_dump+0x4c0/0x4c0 [ 22.173564] ? do_raw_spin_trylock+0x190/0x190 [ 22.173572] xfrm_tmpl_resolve+0x309/0xc00 [ 22.173587] ? __xfrm_decode_session+0x100/0x100 [ 22.173594] ? save_stack+0xa3/0xd0 [ 22.173600] ? save_stack_trace+0x16/0x20 [ 22.173604] ? save_stack+0x43/0xd0 [ 22.173608] ? kasan_kmalloc+0xad/0xe0 [ 22.173612] ? kasan_slab_alloc+0x12/0x20 [ 22.173617] ? kmem_cache_alloc+0x12e/0x760 [ 22.173621] ? dst_alloc+0x11f/0x1a0 [ 22.173624] ? rt_dst_alloc+0xe9/0x540 [ 22.173629] ? ip_route_output_key_hash_rcu+0xa40/0x2c20 [ 22.173633] ? ip_route_output_key_hash+0x20b/0x370 [ 22.173636] ? ip_route_output_flow+0x26/0xa0 [ 22.173641] ? inet_csk_route_req+0x5d8/0x990 [ 22.173645] ? tcp_v4_send_synack+0x1e4/0x270 [ 22.173649] ? tcp_rtx_synack+0x119/0x2e0 [ 22.173653] ? inet_rtx_syn_ack+0x64/0xd0 [ 22.173657] ? tcp_check_req+0xae3/0x1620 [ 22.173661] ? tcp_v4_rcv+0x1e67/0x2e10 [ 22.173665] ? ip_local_deliver_finish+0x2e2/0xba0 [ 22.173669] ? ip_local_deliver+0x1ce/0x6d0 [ 22.173674] ? ip_rcv_finish+0x8db/0x19c0 [ 22.173678] ? ip_rcv+0xc3f/0x17d0 [ 22.173686] xfrm_resolve_and_create_bundle+0x186/0x24a0 [ 22.173691] ? __vfs_write+0x684/0x970 [ 22.173696] ? vfs_write+0x189/0x510 [ 22.173702] ? SyS_write+0xef/0x220 [ 22.173706] ? entry_SYSCALL_64_fastpath+0x1f/0xbe [ 22.173719] ? lock_release+0xa40/0xa40 [ 22.173725] ? xfrm_tmpl_resolve+0xc00/0xc00 [ 22.173730] ? fib_select_path+0x32a/0x1637 [ 22.173735] ? rt_cache_route+0x1a2/0x300 [ 22.173743] ? lock_acquire+0x1d5/0x580 [ 22.173748] ? lock_acquire+0x1d5/0x580 [ 22.173753] ? xfrm_sk_policy_lookup+0x2a6/0x3d0 [ 22.173760] ? lock_downgrade+0x990/0x990 [ 22.173768] ? lock_release+0xa40/0xa40 [ 22.173775] ? refcount_inc_not_zero+0xfe/0x180 [ 22.173779] ? refcount_add+0x60/0x60 [ 22.173791] ? xfrm_selector_match+0x3b/0xe00 [ 22.173799] ? xfrm_sk_policy_lookup+0x2cf/0x3d0 [ 22.173807] ? xfrm_selector_match+0xe00/0xe00 [ 22.173818] xfrm_lookup+0xefb/0x2540 [ 22.173822] ? xfrm_lookup+0xefb/0x2540 [ 22.173834] ? xfrm_policy_lookup_bytype.constprop.49+0x16f0/0x16f0 [ 22.173844] ? lock_acquire+0x1d5/0x580 [ 22.173849] ? __fib_validate_source+0x72d/0x1a10 [ 22.173854] ? netlbl_enabled+0x52/0xe0 [ 22.173859] ? netlbl_catmap_setrng+0xb0/0xb0 [ 22.173866] ? lock_release+0xa40/0xa40 [ 22.173877] ? lock_acquire+0x1d5/0x580 [ 22.173894] ? lock_acquire+0x1d5/0x580 [ 22.173899] ? ip_route_output_key_hash+0x229/0x370 [ 22.173905] ? lock_downgrade+0x990/0x990 [ 22.173913] ? lock_release+0xa40/0xa40 [ 22.173918] ? selinux_nf_register+0x30/0x30 [ 22.173930] ? selinux_sock_rcv_skb_compat+0x2f4/0x480 [ 22.173937] ? ip_route_output_key_hash+0x252/0x370 [ 22.173943] ? ip_route_output_key_hash_rcu+0x2c20/0x2c20 [ 22.173948] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 22.173956] xfrm_lookup_route+0x39/0x1a0 [ 22.173963] ip_route_output_flow+0x7c/0xa0 [ 22.173969] inet_csk_route_req+0x5d8/0x990 [ 22.173975] ? selinux_socket_sock_rcv_skb+0x388/0x870 [ 22.173984] tcp_v4_send_synack+0x1e4/0x270 [ 22.173990] ? selinux_sock_rcv_skb_compat+0x480/0x480 [ 22.173996] ? tcp_v4_send_check+0x90/0x90 [ 22.174006] ? lock_acquire+0x1d5/0x580 [ 22.174011] ? sk_filter_trim_cap+0x3f3/0x9b0 [ 22.174015] ? prandom_u32_state+0x13/0x180 [ 22.174022] tcp_rtx_synack+0x119/0x2e0 [ 22.174029] ? tcp_event_new_data_sent+0x2e0/0x2e0 [ 22.174037] ? tcp_v4_parse_md5_keys+0x2c0/0x2c0 [ 22.174047] inet_rtx_syn_ack+0x64/0xd0 [ 22.174054] tcp_check_req+0xae3/0x1620 [ 22.174063] ? tcp_openreq_init_rwin+0xae0/0xae0 [ 22.174068] ? refcount_inc_not_zero+0xfe/0x180 [ 22.174072] ? refcount_add+0x60/0x60 [ 22.174077] ? tcp_v4_reqsk_send_ack+0x3e0/0x3e0 [ 22.174098] ? tcp_filter+0x111/0x160 [ 22.174106] tcp_v4_rcv+0x1e67/0x2e10 [ 22.174113] ? lock_acquire+0x1d5/0x580 [ 22.174118] ? lock_acquire+0x1d5/0x580 [ 22.174145] ? tcp_v4_early_demux+0xa30/0xa30 [ 22.174151] ? ip_local_deliver+0x48c/0x6d0 [ 22.174159] ip_local_deliver_finish+0x2e2/0xba0 [ 22.174167] ? inet_del_offload+0x40/0x40 [ 22.174177] ip_local_deliver+0x1ce/0x6d0 [ 22.174183] ? ip_call_ra_chain+0x6d0/0x6d0 [ 22.174189] ? ip_route_input_noref+0x13c/0x1e0 [ 22.174196] ? ip_route_input_rcu+0x3210/0x3210 [ 22.174203] ? inet_del_offload+0x40/0x40 [ 22.174212] ip_rcv_finish+0x8db/0x19c0 [ 22.174217] ? iptable_nat_ipv4_fn+0x40/0x40 [ 22.174225] ? ip_local_deliver_finish+0xba0/0xba0 [ 22.174233] ? ip_rcv+0xf05/0x17d0 [ 22.174239] ? lock_downgrade+0x990/0x990 [ 22.174244] ? tcp_v4_send_synack+0x270/0x270 [ 22.174249] ? iptable_nat_ipv4_in+0x2c/0x40 [ 22.174255] ? nf_hook_slow+0x12d/0x290 [ 22.174261] ? nf_unregister_afinfo+0x150/0x150 [ 22.174268] ? lock_release+0xa40/0xa40 [ 22.174273] ? __read_once_size_nocheck.constprop.8+0x10/0x10 [ 22.174282] ip_rcv+0xc3f/0x17d0 [ 22.174290] ? ip_local_deliver+0x6d0/0x6d0 [ 22.174296] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 22.174302] ? lock_release+0xa40/0xa40 [ 22.174309] ? unwind_dump+0x4c0/0x4c0 [ 22.174317] ? ip_local_deliver_finish+0xba0/0xba0 [ 22.174324] ? ip_local_deliver+0x6d0/0x6d0 [ 22.174331] __netif_receive_skb_core+0x19af/0x33d0 [ 22.174336] ? unwind_get_return_address+0x61/0xa0 [ 22.174346] ? nf_ingress+0x9f0/0x9f0 [ 22.174354] ? save_stack+0xa3/0xd0 [ 22.174360] ? save_stack_trace+0x16/0x20 [ 22.174365] ? save_stack+0x43/0xd0 [ 22.174369] ? kasan_kmalloc+0xad/0xe0 [ 22.174375] ? kasan_slab_alloc+0x12/0x20 [ 22.174379] ? kmem_cache_alloc+0x12e/0x760 [ 22.174384] ? __build_skb+0x9d/0x450 [ 22.174388] ? build_skb+0x6f/0x260 [ 22.174394] ? tun_get_user+0x1daf/0x2150 [ 22.174399] ? tun_chr_write_iter+0xd8/0x190 [ 22.174404] ? __vfs_write+0x684/0x970 [ 22.174408] ? vfs_write+0x189/0x510 [ 22.174414] ? __skb_flow_get_ports+0x151/0x400 [ 22.174420] ? flow_get_u32_dst+0x130/0x130 [ 22.174428] ? __skb_flow_get_ports+0x151/0x400 [ 22.174436] ? __skb_flow_dissect+0xfa6/0x3ad0 [ 22.174450] ? __skb_flow_get_ports+0x400/0x400 [ 22.174462] ? lock_acquire+0x1d5/0x580 [ 22.174467] ? netif_receive_skb_internal+0x1d7/0x5e0 [ 22.174473] ? lock_downgrade+0x990/0x990 [ 22.174484] ? pvclock_read_flags+0x160/0x160 [ 22.174488] ? __build_skb+0x325/0x450 [ 22.174497] ? lock_acquire+0x1d5/0x580 [ 22.174502] ? lock_acquire+0x1d5/0x580 [ 22.174506] ? netif_receive_skb_internal+0x93/0x5e0 [ 22.174512] ? ktime_get_with_offset+0x2c1/0x420 [ 22.174519] ? lock_release+0xa40/0xa40 [ 22.174523] ? do_gettimeofday+0x190/0x190 [ 22.174528] ? __build_skb+0x450/0x450 [ 22.174537] __netif_receive_skb+0x2c/0x1b0 [ 22.174541] ? __netif_receive_skb+0x2c/0x1b0 [ 22.174547] netif_receive_skb_internal+0x10b/0x5e0 [ 22.174553] ? dev_cpu_dead+0xb00/0xb00 [ 22.174559] ? tun_net_xmit+0x1280/0x1280 [ 22.174590] netif_receive_skb+0xae/0x390 [ 22.174596] ? netif_receive_skb_internal+0x5e0/0x5e0 [ 22.174608] ? tun_rx_batched.isra.43+0x5bd/0x860 [ 22.174616] tun_rx_batched.isra.43+0x5e7/0x860 [ 22.174623] ? skb_get_hash_perturb+0x9d0/0x9d0 [ 22.174629] ? tun_sock_write_space+0x370/0x370 [ 22.174635] ? tun_free_netdev+0x1b0/0x1b0 [ 22.174663] tun_get_user+0x11dd/0x2150 [ 22.174676] ? tun_flow_update+0xf70/0xf70 [ 22.174687] ? lock_acquire+0x1d5/0x580 [ 22.174692] ? lock_acquire+0x1d5/0x580 [ 22.174698] ? __tun_get+0x1ab/0x2e0 [ 22.174704] ? lock_downgrade+0x990/0x990 [ 22.174712] ? lock_release+0xa40/0xa40 [ 22.174717] ? __fget+0x35c/0x570 [ 22.174746] ? __tun_get+0x1d4/0x2e0 [ 22.174751] ? tun_chr_close+0x60/0x60 [ 22.174780] tun_chr_write_iter+0xd8/0x190 [ 22.174787] __vfs_write+0x684/0x970 [ 22.174795] ? default_llseek+0x290/0x290 [ 22.174803] ? _cond_resched+0x14/0x30 [ 22.174809] ? avc_policy_seqno+0x9/0x20 [ 22.174814] ? selinux_file_permission+0x82/0x460 [ 22.174825] ? rw_verify_area+0xe5/0x2b0 [ 22.174830] ? __fdget_raw+0x20/0x20 [ 22.174837] vfs_write+0x189/0x510 [ 22.174845] SyS_write+0xef/0x220 [ 22.174853] ? SyS_read+0x220/0x220 [ 22.174860] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.174868] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 22.174872] RIP: 0033:0x405f81 [ 22.174874] RSP: 002b:00007f24f8731d80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 22.174878] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000405f81 [ 22.174881] RDX: 0000000000000036 RSI: 0000000020002000 RDI: 0000000000000003 [ 22.174883] RBP: 00007ffc25d22b00 R08: 0000000000000013 R09: 00007f24f8732700 [ 22.174887] R10: 00007f24f87329d0 R11: 0000000000000293 R12: 0000000000000000 [ 22.174890] R13: 0000000000000000 R14: 00007f24f87329c0 R15: 00007f24f8732700 [ 22.175595] Dumping ftrace buffer: [ 22.175597] (ftrace buffer empty) [ 22.175598] Kernel Offset: disabled [ 22.248470] Rebooting in 86400 seconds..