[ 34.813843] audit: type=1800 audit(1552103653.987:27): pid=7472 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.842158] audit: type=1800 audit(1552103653.987:28): pid=7472 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 35.433074] audit: type=1800 audit(1552103654.667:29): pid=7472 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 35.452633] audit: type=1800 audit(1552103654.667:30): pid=7472 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.32' (ECDSA) to the list of known hosts. syzkaller login: [ 49.563008] IPVS: ftp: loaded support on port[0] = 21 [ 49.616575] chnl_net:caif_netlink_parms(): no params data found [ 49.645653] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.652722] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.659612] device bridge_slave_0 entered promiscuous mode [ 49.666804] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.673276] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.680086] device bridge_slave_1 entered promiscuous mode [ 49.695229] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.704066] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.719265] team0: Port device team_slave_0 added [ 49.725595] team0: Port device team_slave_1 added [ 49.792574] device hsr_slave_0 entered promiscuous mode [ 49.840987] device hsr_slave_1 entered promiscuous mode [ 49.917266] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.923752] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.930778] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.937125] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.965983] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.977715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.997343] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.004925] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.012816] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.024210] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.033396] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.041249] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.047592] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.067774] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 50.078023] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 50.090340] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.099012] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.105425] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.112653] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.120225] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.128136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.136208] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.149792] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.157449] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 50.164269] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.176995] kasan: CONFIG_KASAN_INLINE enabled [ 50.181692] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.189057] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.195275] CPU: 0 PID: 7626 Comm: syz-executor178 Not tainted 5.0.0+ #97 [ 50.202180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.211527] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 50.216785] Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 04 59 fb e8 ec 42 [ 50.235670] RSP: 0018:ffff88808b2f7018 EFLAGS: 00010246 [ 50.241019] RAX: dffffc0000000000 RBX: ffff88809ba4ce80 RCX: ffffffff86047263 [ 50.248271] RDX: 0000000000000000 RSI: ffffffff860472a0 RDI: ffff8880a8dc6d88 [ 50.255524] RBP: ffff88808b2f7040 R08: ffff8880908206c0 R09: ffffed1015d05bd0 [ 50.262776] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 [ 50.270028] R13: 0000000000000035 R14: ffff88809ba4ce90 R15: ffffffffffffffff [ 50.277282] FS: 0000000001d78880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 50.285490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.291353] CR2: 0000000020000440 CR3: 00000000a136d000 CR4: 00000000001406f0 [ 50.298790] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.306162] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.313428] Call Trace: [ 50.316005] __xfrm_policy_check+0x1f8/0x2730 [ 50.320489] ? find_held_lock+0x35/0x130 [ 50.324537] ? vti6_tnl_lookup+0x287/0x1020 [ 50.328840] ? __xfrm_route_forward+0x870/0x870 [ 50.333490] ? __lock_is_held+0xb6/0x140 [ 50.337532] ? check_preemption_disabled+0x48/0x290 [ 50.342535] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 50.347971] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.353494] ? vti6_tnl_lookup+0x69a/0x1020 [ 50.357797] ? vti6_init_net+0x820/0x820 [ 50.361843] ? check_preemption_disabled+0x48/0x290 [ 50.366866] vti6_rcv+0x51a/0x970 [ 50.370306] xfrm6_esp_rcv+0xd8/0x230 [ 50.374090] ip6_protocol_deliver_rcu+0x303/0x16c0 [ 50.379002] ? lock_acquire+0x16f/0x3f0 [ 50.382963] ? rcu_note_context_switch+0x1720/0x1730 [ 50.388079] ip6_input_finish+0x84/0x170 [ 50.392126] ip6_input+0xe4/0x3f0 [ 50.395566] ? ip6_input_finish+0x170/0x170 [ 50.399872] ? ip6_protocol_deliver_rcu+0x16c0/0x16c0 [ 50.405049] ? ipv6_chk_mcast_addr+0x2f2/0x6f0 [ 50.409616] ip6_mc_input+0x4aa/0xf30 [ 50.413401] ? ip6_input+0x3f0/0x3f0 [ 50.417101] ip6_rcv_finish+0x1e7/0x320 [ 50.421056] ipv6_rcv+0x10e/0x420 [ 50.424495] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 50.429231] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 50.434408] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 50.439156] __netif_receive_skb_one_core+0x115/0x1a0 [ 50.444330] ? __netif_receive_skb_core+0x3010/0x3010 [ 50.449526] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.455052] ? check_preemption_disabled+0x48/0x290 [ 50.460050] ? lock_acquire+0x16f/0x3f0 [ 50.464012] __netif_receive_skb+0x2c/0x1c0 [ 50.468320] netif_receive_skb_internal+0x117/0x660 [ 50.473319] ? dev_cpu_dead+0x920/0x920 [ 50.477281] ? eth_gro_receive+0x890/0x890 [ 50.481527] napi_gro_frags+0xade/0xd10 [ 50.485491] tun_get_user+0x2c17/0x3d70 [ 50.489456] ? tun_build_skb.isra.0+0x12f0/0x12f0 [ 50.494284] ? tun_get+0x171/0x290 [ 50.497808] ? lock_downgrade+0x810/0x810 [ 50.501996] ? kasan_check_read+0x11/0x20 [ 50.506131] tun_chr_write_iter+0xbd/0x160 [ 50.510348] do_iter_readv_writev+0x5e0/0x8e0 [ 50.514836] ? vfs_dedupe_file_range+0x780/0x780 [ 50.519577] ? apparmor_file_permission+0x25/0x30 [ 50.524404] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.529925] ? rw_verify_area+0x118/0x360 [ 50.534073] do_iter_write+0x184/0x610 [ 50.537946] ? dup_iter+0x260/0x260 [ 50.541560] vfs_writev+0x1b3/0x2f0 [ 50.545170] ? vfs_iter_write+0xb0/0xb0 [ 50.549128] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.554647] ? __handle_mm_fault+0x7cd/0x3f20 [ 50.559128] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 50.563951] ? find_held_lock+0x35/0x130 [ 50.567996] ? __do_page_fault+0x610/0xd60 [ 50.572217] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.577736] ? __fget_light+0x1a9/0x230 [ 50.581696] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.587216] do_writev+0xf6/0x290 [ 50.590655] ? vfs_writev+0x2f0/0x2f0 [ 50.594442] ? do_syscall_64+0x26/0x610 [ 50.598400] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.603744] ? do_syscall_64+0x26/0x610 [ 50.607704] __x64_sys_writev+0x75/0xb0 [ 50.611662] do_syscall_64+0x103/0x610 [ 50.615536] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.620708] RIP: 0033:0x441ef0 [ 50.623886] Code: 05 48 3d 01 f0 ff ff 0f 83 3d 0f fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 21 91 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 14 0f fc ff c3 48 83 ec 08 e8 7a 2b 00 00 [ 50.642774] RSP: 002b:00007ffc052f3e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 50.650465] RAX: ffffffffffffffda RBX: 00007ffc052f3ed0 RCX: 0000000000441ef0 [ 50.657731] RDX: 0000000000000001 RSI: 00007ffc052f3ed0 RDI: 00000000000000f0 [ 50.664986] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 50.672235] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc052f3ea0 [ 50.679486] R13: 0000000000403320 R14: 0000000000000000 R15: 0000000000000000 [ 50.686742] Modules linked in: [ 50.689987] ---[ end trace 98db5aaa99b5f450 ]--- [ 50.694768] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 50.700031] Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 04 59 fb e8 ec 42 [ 50.718965] RSP: 0018:ffff88808b2f7018 EFLAGS: 00010246 [ 50.724361] RAX: dffffc0000000000 RBX: ffff88809ba4ce80 RCX: ffffffff86047263 [ 50.731653] RDX: 0000000000000000 RSI: ffffffff860472a0 RDI: ffff8880a8dc6d88 [ 50.738928] RBP: ffff88808b2f7040 R08: ffff8880908206c0 R09: ffffed1015d05bd0 [ 50.746241] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 [ 50.753524] R13: 0000000000000035 R14: ffff88809ba4ce90 R15: ffffffffffffffff [ 50.760836] FS: 0000000001d78880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 50.769056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.774953] CR2: 0000000020000440 CR3: 00000000a136d000 CR4: 00000000001406f0 [ 50.782239] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.789492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.796775] Kernel panic - not syncing: Fatal exception in interrupt [ 50.803992] Kernel Offset: disabled [ 50.807630] Rebooting in 86400 seconds..