[ 33.574383] audit: type=1800 audit(1550844410.507:27): pid=7354 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 33.601351] audit: type=1800 audit(1550844410.507:28): pid=7354 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. [ 34.206912] audit: type=1800 audit(1550844411.177:29): pid=7354 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 [ 34.226312] audit: type=1800 audit(1550844411.187:30): pid=7354 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 '10.128.15.203' (ECDSA) to the list of known hosts. syzkaller login: [ 63.227380] IPVS: ftp: loaded support on port[0] = 21 [ 63.283381] chnl_net:caif_netlink_parms(): no params data found [ 63.312303] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.319599] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.326650] device bridge_slave_0 entered promiscuous mode [ 63.333714] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.340387] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.347227] device bridge_slave_1 entered promiscuous mode [ 63.363635] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 63.372527] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 63.387914] team0: Port device team_slave_0 added [ 63.394151] team0: Port device team_slave_1 added [ 63.440284] device hsr_slave_0 entered promiscuous mode [ 63.489083] device hsr_slave_1 entered promiscuous mode [ 63.545144] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.551604] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.558731] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.565090] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.592926] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.603541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.622740] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.630401] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.637394] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.647417] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.656070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.664050] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.670457] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.690080] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.697650] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.704032] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.711267] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.719162] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.726906] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.734423] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 63.742237] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.751194] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.767098] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.781148] kasan: CONFIG_KASAN_INLINE enabled [ 63.785785] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 63.793167] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 63.799390] CPU: 0 PID: 7509 Comm: syz-executor579 Not tainted 5.0.0-rc7+ #90 [ 63.806637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.815980] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 63.821237] 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 41 38 5b fb e8 6c 74 [ 63.840121] RSP: 0018:ffff8880903cf018 EFLAGS: 00010246 [ 63.845469] RAX: dffffc0000000000 RBX: ffff888092e53040 RCX: ffffffff86026bf3 [ 63.852721] RDX: 0000000000000000 RSI: ffffffff86026c30 RDI: ffff8880a4ce9788 [ 63.859981] RBP: ffff8880903cf040 R08: ffff88808ff50200 R09: ffffed1015d05bd0 [ 63.867228] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 [ 63.874480] R13: 0000000000000037 R14: ffff888092e53050 R15: ffffffffffffffff [ 63.881745] FS: 0000000001aa1880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 63.889951] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.895810] CR2: 0000000020200000 CR3: 0000000090ca0000 CR4: 00000000001406f0 [ 63.903060] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.910312] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.917558] Call Trace: [ 63.920140] __xfrm_policy_check+0x1f8/0x2730 [ 63.924619] ? kasan_check_read+0x11/0x20 [ 63.928772] ? find_held_lock+0x35/0x130 [ 63.932819] ? vti6_tnl_lookup+0x287/0x1020 [ 63.937127] ? __xfrm_route_forward+0x860/0x860 [ 63.941790] ? __lock_is_held+0xb6/0x140 [ 63.945886] ? check_preemption_disabled+0x48/0x290 [ 63.950895] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 63.956329] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.961852] ? vti6_tnl_lookup+0x69a/0x1020 [ 63.966152] ? vti6_init_net+0x820/0x820 [ 63.970197] ? check_preemption_disabled+0x48/0x290 [ 63.975198] vti6_rcv+0x51a/0x970 [ 63.978636] xfrm6_esp_rcv+0xd8/0x230 [ 63.982417] ip6_protocol_deliver_rcu+0x303/0x16c0 [ 63.987327] ? lock_acquire+0x16f/0x3f0 [ 63.991286] ? rcu_note_context_switch+0x1720/0x1730 [ 63.996372] ip6_input_finish+0x84/0x170 [ 64.000414] ip6_input+0xe4/0x3f0 [ 64.003849] ? ip6_input_finish+0x170/0x170 [ 64.008160] ? ip6_protocol_deliver_rcu+0x16c0/0x16c0 [ 64.013350] ? ipv6_chk_mcast_addr+0x2f2/0x6f0 [ 64.017916] ip6_mc_input+0x4aa/0xf30 [ 64.021701] ? ip6_input+0x3f0/0x3f0 [ 64.025407] ip6_rcv_finish+0x1e7/0x320 [ 64.029362] ipv6_rcv+0x10e/0x420 [ 64.032799] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 64.037534] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 64.042706] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 64.047454] __netif_receive_skb_one_core+0x115/0x1a0 [ 64.052627] ? __netif_receive_skb_core+0x3010/0x3010 [ 64.057800] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.063320] ? check_preemption_disabled+0x48/0x290 [ 64.068322] ? lock_acquire+0x16f/0x3f0 [ 64.072279] __netif_receive_skb+0x2c/0x1c0 [ 64.076587] netif_receive_skb_internal+0x117/0x660 [ 64.081591] ? dev_cpu_dead+0x920/0x920 [ 64.085547] ? eth_gro_receive+0x890/0x890 [ 64.089835] napi_gro_frags+0xade/0xd10 [ 64.093804] tun_get_user+0x2c0e/0x3dd0 [ 64.097776] ? tun_build_skb.isra.0+0x1150/0x1150 [ 64.102610] ? tun_get+0x171/0x290 [ 64.106140] ? lock_downgrade+0x810/0x810 [ 64.110276] ? kasan_check_read+0x11/0x20 [ 64.114406] tun_chr_write_iter+0xbd/0x160 [ 64.118629] do_iter_readv_writev+0x5e0/0x8e0 [ 64.123106] ? vfs_dedupe_file_range+0x780/0x780 [ 64.127843] ? apparmor_file_permission+0x25/0x30 [ 64.132666] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 64.138184] ? rw_verify_area+0x118/0x360 [ 64.142311] do_iter_write+0x184/0x610 [ 64.146177] ? dup_iter+0x260/0x260 [ 64.149788] vfs_writev+0x1b3/0x2f0 [ 64.153395] ? vfs_iter_write+0xb0/0xb0 [ 64.157349] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.162878] ? __handle_mm_fault+0x7cd/0x3f20 [ 64.167357] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 64.172181] ? find_held_lock+0x35/0x130 [ 64.176224] ? __do_page_fault+0x610/0xd60 [ 64.180444] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.185962] ? __fget_light+0x1a9/0x230 [ 64.189917] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.195434] do_writev+0xf6/0x290 [ 64.198872] ? vfs_writev+0x2f0/0x2f0 [ 64.202655] ? do_syscall_64+0x26/0x610 [ 64.206610] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.211956] ? do_syscall_64+0x26/0x610 [ 64.215915] __x64_sys_writev+0x75/0xb0 [ 64.219872] do_syscall_64+0x103/0x610 [ 64.223741] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.228909] RIP: 0033:0x442000 [ 64.232080] 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 11 90 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 [ 64.251041] RSP: 002b:00007ffd90ce0ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 64.258740] RAX: ffffffffffffffda RBX: 00007ffd90ce0b10 RCX: 0000000000442000 [ 64.265988] RDX: 0000000000000001 RSI: 00007ffd90ce0b10 RDI: 00000000000000f0 [ 64.273235] RBP: 0000000000000003 R08: 000000000000bbff R09: 0000000000000000 [ 64.280483] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd90ce0ae0 [ 64.287736] R13: 0000000000403430 R14: 0000000000000000 R15: 0000000000000000 [ 64.294989] Modules linked in: [ 64.298221] ---[ end trace 5ca0431a69980ac3 ]--- [ 64.302979] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 64.308271] 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 41 38 5b fb e8 6c 74 [ 64.327179] RSP: 0018:ffff8880903cf018 EFLAGS: 00010246 [ 64.332546] RAX: dffffc0000000000 RBX: ffff888092e53040 RCX: ffffffff86026bf3 [ 64.339816] RDX: 0000000000000000 RSI: ffffffff86026c30 RDI: ffff8880a4ce9788 [ 64.347066] RBP: ffff8880903cf040 R08: ffff88808ff50200 R09: ffffed1015d05bd0 [ 64.354376] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 [ 64.361660] R13: 0000000000000037 R14: ffff888092e53050 R15: ffffffffffffffff [ 64.368949] FS: 0000000001aa1880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 64.377168] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.383054] CR2: 0000000020200000 CR3: 0000000090ca0000 CR4: 00000000001406f0 [ 64.390325] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.397583] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.404875] Kernel panic - not syncing: Fatal exception in interrupt [ 64.412479] Kernel Offset: disabled [ 64.416104] Rebooting in 86400 seconds..