[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.375066] audit: type=1800 audit(1552104651.540:25): pid=7639 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.411282] audit: type=1800 audit(1552104651.540:26): pid=7639 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.432195] audit: type=1800 audit(1552104651.550:27): pid=7639 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.76' (ECDSA) to the list of known hosts. syzkaller login: [ 47.838487] IPVS: ftp: loaded support on port[0] = 21 [ 47.896625] chnl_net:caif_netlink_parms(): no params data found [ 47.926229] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.933231] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.940173] device bridge_slave_0 entered promiscuous mode [ 47.947469] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.953952] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.960744] device bridge_slave_1 entered promiscuous mode [ 47.976600] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.985511] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.000853] team0: Port device team_slave_0 added [ 48.007451] team0: Port device team_slave_1 added [ 48.073331] device hsr_slave_0 entered promiscuous mode [ 48.131632] device hsr_slave_1 entered promiscuous mode [ 48.188706] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.195227] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.202417] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.208771] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.239683] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.252123] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.271689] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.278852] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.286899] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.297291] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.306541] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.314229] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.320554] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.329568] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.337222] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.343616] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.365891] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.374204] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.382501] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 48.389850] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.397471] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.406825] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.423818] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.435640] kasan: CONFIG_KASAN_INLINE enabled [ 48.440298] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.447695] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 48.453932] CPU: 0 PID: 7792 Comm: syz-executor717 Not tainted 5.0.0+ #13 [ 48.460833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.470174] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 48.475439] 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 11 cf 56 fb e8 9c 15 [ 48.494332] RSP: 0018:ffff88808c4af018 EFLAGS: 00010246 [ 48.499672] RAX: dffffc0000000000 RBX: ffff88808dd88980 RCX: ffffffff86073f43 [ 48.506933] RDX: 0000000000000000 RSI: ffffffff86073f80 RDI: ffff88809271a9c8 [ 48.514195] RBP: ffff88808c4af040 R08: ffff88808f3be000 R09: ffffed1015d05bc8 [ 48.521449] R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 0000000000000000 [ 48.528724] R13: 0000000000000035 R14: ffff88808dd88990 R15: ffffffffffffffff [ 48.535973] FS: 0000000001afb880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 48.544187] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.550042] CR2: 0000000020000440 CR3: 0000000093327000 CR4: 00000000001406f0 [ 48.557298] Call Trace: [ 48.559867] __xfrm_policy_check+0x1f8/0x2730 [ 48.564346] ? find_held_lock+0x35/0x130 [ 48.568391] ? vti6_tnl_lookup+0x287/0x1020 [ 48.572694] ? __xfrm_route_forward+0x840/0x840 [ 48.577351] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.582869] ? vti6_tnl_lookup+0x69a/0x1020 [ 48.587172] ? vti6_init_net+0x820/0x820 [ 48.591215] vti6_rcv+0x51a/0x970 [ 48.594654] xfrm6_esp_rcv+0xd8/0x230 [ 48.598685] ip6_protocol_deliver_rcu+0x303/0x16c0 [ 48.603597] ? lock_acquire+0x16f/0x3f0 [ 48.607552] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.613070] ? rcu_dynticks_curr_cpu_in_eqs+0x10/0xb0 [ 48.618324] ip6_input_finish+0x84/0x170 [ 48.622380] ip6_input+0xe4/0x3f0 [ 48.625822] ? ip6_input_finish+0x170/0x170 [ 48.630131] ? ip6_protocol_deliver_rcu+0x16c0/0x16c0 [ 48.635316] ? ipv6_chk_mcast_addr+0x2f2/0x6f0 [ 48.640054] ip6_mc_input+0x4aa/0xf30 [ 48.643835] ? ip6_input+0x3f0/0x3f0 [ 48.647550] ip6_rcv_finish+0x1e7/0x320 [ 48.651518] ipv6_rcv+0x10e/0x420 [ 48.654974] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 48.659707] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 48.664884] ? mark_held_locks+0xf0/0xf0 [ 48.668924] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 48.673694] __netif_receive_skb_one_core+0x115/0x1a0 [ 48.678910] ? __netif_receive_skb_core+0x3040/0x3040 [ 48.684082] ? lock_acquire+0x16f/0x3f0 [ 48.688075] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.693594] __netif_receive_skb+0x2c/0x1c0 [ 48.697896] netif_receive_skb_internal+0x117/0x660 [ 48.702904] ? dev_cpu_dead+0x920/0x920 [ 48.706856] ? eth_gro_receive+0x890/0x890 [ 48.711069] napi_gro_frags+0xade/0xd10 [ 48.715049] tun_get_user+0x2c17/0x3d70 [ 48.719009] ? __lock_acquire+0x548/0x3fb0 [ 48.723230] ? tun_build_skb.isra.0+0x12f0/0x12f0 [ 48.728046] ? tun_get+0x171/0x290 [ 48.731574] ? lock_downgrade+0x880/0x880 [ 48.735713] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.741233] ? kasan_check_read+0x11/0x20 [ 48.745365] tun_chr_write_iter+0xbd/0x160 [ 48.749580] do_iter_readv_writev+0x5e0/0x8e0 [ 48.754058] ? vfs_dedupe_file_range+0x780/0x780 [ 48.758793] ? apparmor_file_permission+0x25/0x30 [ 48.763628] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.769148] ? rw_verify_area+0x118/0x360 [ 48.773281] do_iter_write+0x184/0x610 [ 48.777165] ? dup_iter+0x260/0x260 [ 48.780772] vfs_writev+0x1b3/0x2f0 [ 48.784383] ? vfs_iter_write+0xb0/0xb0 [ 48.788336] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.793856] ? __handle_mm_fault+0x7cd/0x3ec0 [ 48.798335] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 48.803188] ? find_held_lock+0x35/0x130 [ 48.807234] ? __do_page_fault+0x623/0xda0 [ 48.811463] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.817002] ? __fget_light+0x1a9/0x230 [ 48.820957] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.826476] do_writev+0xf6/0x290 [ 48.829946] ? vfs_writev+0x2f0/0x2f0 [ 48.833740] ? do_syscall_64+0x26/0x610 [ 48.837703] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.843044] ? do_syscall_64+0x26/0x610 [ 48.846998] __x64_sys_writev+0x75/0xb0 [ 48.850954] do_syscall_64+0x103/0x610 [ 48.854833] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.860001] RIP: 0033:0x441ef0 [ 48.863175] 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 [ 48.882074] RSP: 002b:00007ffdd3b07e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 48.889779] RAX: ffffffffffffffda RBX: 00007ffdd3b07ea0 RCX: 0000000000441ef0 [ 48.897046] RDX: 0000000000000001 RSI: 00007ffdd3b07ea0 RDI: 00000000000000f0 [ 48.904297] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 48.911552] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdd3b07e70 [ 48.918828] R13: 0000000000403320 R14: 0000000000000000 R15: 0000000000000000 [ 48.926078] Modules linked in: [ 48.929305] ---[ end trace 6482d2d0a608ab55 ]--- [ 48.934080] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 48.939344] 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 11 cf 56 fb e8 9c 15 [ 48.958258] RSP: 0018:ffff88808c4af018 EFLAGS: 00010246 [ 48.963637] RAX: dffffc0000000000 RBX: ffff88808dd88980 RCX: ffffffff86073f43 [ 48.970886] RDX: 0000000000000000 RSI: ffffffff86073f80 RDI: ffff88809271a9c8 [ 48.978176] RBP: ffff88808c4af040 R08: ffff88808f3be000 R09: ffffed1015d05bc8 [ 48.985471] R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 0000000000000000 [ 48.992777] R13: 0000000000000035 R14: ffff88808dd88990 R15: ffffffffffffffff [ 49.000043] FS: 0000000001afb880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 49.008367] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.014261] CR2: 0000000020000440 CR3: 0000000093327000 CR4: 00000000001406f0 [ 49.021563] Kernel panic - not syncing: Fatal exception in interrupt [ 49.028689] Kernel Offset: disabled [ 49.032307] Rebooting in 86400 seconds..