[ 40.101047] audit: type=1800 audit(1551160302.731:31): pid=7874 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 40.122599] audit: type=1800 audit(1551160302.731:32): pid=7874 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?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 '10.128.0.18' (ECDSA) to the list of known hosts. syzkaller login: [ 51.569239] kauditd_printk_skb: 3 callbacks suppressed [ 51.569255] audit: type=1400 audit(1551160314.261:36): avc: denied { map } for pid=8059 comm="syz-executor221" path="/root/syz-executor221802318" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 51.590870] IPVS: ftp: loaded support on port[0] = 21 [ 51.656571] chnl_net:caif_netlink_parms(): no params data found [ 51.686762] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.694392] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.701457] device bridge_slave_0 entered promiscuous mode [ 51.708598] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.714947] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.721892] device bridge_slave_1 entered promiscuous mode [ 51.735602] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 51.744739] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 51.760932] team0: Port device team_slave_0 added [ 51.766789] team0: Port device team_slave_1 added [ 51.828677] device hsr_slave_0 entered promiscuous mode [ 51.867314] device hsr_slave_1 entered promiscuous mode [ 51.924140] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.930558] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.937435] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.943779] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.974635] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.985940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.005514] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.012896] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.021085] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.031406] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.040975] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.048645] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.054966] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.074866] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 52.085580] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.099459] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.107545] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.113873] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.121863] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.129512] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.137500] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.145068] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.152589] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.159477] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 52.174533] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.184885] kasan: CONFIG_KASAN_INLINE enabled [ 52.189590] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 52.196991] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 52.203220] CPU: 1 PID: 8060 Comm: syz-executor221 Not tainted 5.0.0-rc8+ #88 [ 52.210471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.219814] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 52.225086] 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 41 5b fb e8 fc 7d [ 52.243966] RSP: 0018:ffff8880987ff120 EFLAGS: 00010246 [ 52.249320] RAX: dffffc0000000000 RBX: ffff8880a3871e40 RCX: ffffffff86026003 [ 52.256573] RDX: 0000000000000000 RSI: ffffffff86026040 RDI: ffff8880948dba88 [ 52.263836] RBP: ffff8880987ff148 R08: ffff88809926e280 R09: ffffed1015d25bd0 [ 52.271118] R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000000 [ 52.278380] R13: 0000000000000037 R14: ffff8880a3871e50 R15: ffffffffffffffff [ 52.285644] FS: 0000000002286880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 52.293864] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.299756] CR2: 0000000020000040 CR3: 000000008d860000 CR4: 00000000001406e0 [ 52.307019] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.314287] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.321532] Call Trace: [ 52.324118] __xfrm_policy_check+0x1f8/0x2730 [ 52.328600] ? lock_downgrade+0x810/0x810 [ 52.332732] ? __xfrm_route_forward+0x860/0x860 [ 52.337381] ? __lock_acquire+0x53b/0x4700 [ 52.341592] ? __lock_is_held+0xb6/0x140 [ 52.345648] ? check_preemption_disabled+0x48/0x290 [ 52.350647] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 52.356092] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.361610] ? ip_tunnel_lookup+0xa0f/0xe00 [ 52.365913] vti_input+0x4e3/0x7b0 [ 52.369436] vti_rcv+0x10b/0x140 [ 52.372792] xfrm4_esp_rcv+0xd8/0x230 [ 52.376589] ip_protocol_deliver_rcu+0x60/0x8e0 [ 52.381284] ? kasan_check_read+0x11/0x20 [ 52.385428] ? rcu_dynticks_curr_cpu_in_eqs+0x54/0xb0 [ 52.390601] ip_local_deliver_finish+0x23b/0x390 [ 52.395336] ip_local_deliver+0x1e9/0x520 [ 52.399465] ? ip_local_deliver_finish+0x390/0x390 [ 52.404391] ? ip_protocol_deliver_rcu+0x8e0/0x8e0 [ 52.409301] ? ip_rcv_finish_core.isra.0+0x82c/0x1b80 [ 52.414508] ip_rcv_finish+0x1db/0x2f0 [ 52.418379] ip_rcv+0xe8/0x3f0 [ 52.421569] ? ip_local_deliver+0x520/0x520 [ 52.425896] ? ip_rcv_finish_core.isra.0+0x1b80/0x1b80 [ 52.431157] ? ip_local_deliver+0x520/0x520 [ 52.435459] __netif_receive_skb_one_core+0x115/0x1a0 [ 52.440632] ? __netif_receive_skb_core+0x3010/0x3010 [ 52.445831] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.451366] ? check_preemption_disabled+0x48/0x290 [ 52.456361] ? lock_acquire+0x16f/0x3f0 [ 52.460334] __netif_receive_skb+0x2c/0x1c0 [ 52.464634] netif_receive_skb_internal+0x117/0x660 [ 52.469627] ? dev_cpu_dead+0x920/0x920 [ 52.473583] ? eth_gro_receive+0x890/0x890 [ 52.477800] napi_gro_frags+0xade/0xd10 [ 52.481755] tun_get_user+0x2c0e/0x3dd0 [ 52.485741] ? tun_build_skb.isra.0+0x1150/0x1150 [ 52.490562] ? tun_get+0x171/0x290 [ 52.494092] ? lock_downgrade+0x810/0x810 [ 52.498227] ? kasan_check_read+0x11/0x20 [ 52.502354] tun_chr_write_iter+0xbd/0x160 [ 52.506592] do_iter_readv_writev+0x5e0/0x8e0 [ 52.511075] ? vfs_dedupe_file_range+0x780/0x780 [ 52.515810] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.521326] ? rw_verify_area+0x118/0x360 [ 52.525456] do_iter_write+0x184/0x610 [ 52.529325] ? dup_iter+0x260/0x260 [ 52.532934] vfs_writev+0x1b3/0x2f0 [ 52.536537] ? vfs_iter_write+0xb0/0xb0 [ 52.540490] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.546008] ? __handle_mm_fault+0x7cd/0x3f20 [ 52.550488] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 52.555313] ? find_held_lock+0x35/0x130 [ 52.559357] ? __do_page_fault+0x610/0xd60 [ 52.563575] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.569093] ? __fget_light+0x1a9/0x230 [ 52.573051] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.578569] do_writev+0xf6/0x290 [ 52.582024] ? vfs_writev+0x2f0/0x2f0 [ 52.585814] ? do_syscall_64+0x26/0x610 [ 52.589767] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.595110] ? do_syscall_64+0x26/0x610 [ 52.599065] __x64_sys_writev+0x75/0xb0 [ 52.603020] do_syscall_64+0x103/0x610 [ 52.606894] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.612071] RIP: 0033:0x441e60 [ 52.615244] 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 b1 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 [ 52.634122] RSP: 002b:00007ffe533141e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 52.641823] RAX: ffffffffffffffda RBX: 00007ffe53314220 RCX: 0000000000441e60 [ 52.649072] RDX: 0000000000000001 RSI: 00007ffe53314220 RDI: 00000000000000f0 [ 52.656323] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 52.663569] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 52.670838] R13: 0000000000403290 R14: 0000000000000000 R15: 0000000000000000 [ 52.678091] Modules linked in: [ 52.681313] ---[ end trace 80527f1c4dd8b219 ]--- [ 52.686076] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 52.691364] 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 41 5b fb e8 fc 7d [ 52.710272] RSP: 0018:ffff8880987ff120 EFLAGS: 00010246 [ 52.715633] RAX: dffffc0000000000 RBX: ffff8880a3871e40 RCX: ffffffff86026003 [ 52.722976] RDX: 0000000000000000 RSI: ffffffff86026040 RDI: ffff8880948dba88 [ 52.730268] RBP: ffff8880987ff148 R08: ffff88809926e280 R09: ffffed1015d25bd0 [ 52.737542] R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000000 [ 52.744809] R13: 0000000000000037 R14: ffff8880a3871e50 R15: ffffffffffffffff [ 52.752135] FS: 0000000002286880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 52.760379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.766237] CR2: 0000000020000040 CR3: 000000008d860000 CR4: 00000000001406e0 [ 52.773515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.780795] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.788077] Kernel panic - not syncing: Fatal exception in interrupt [ 52.795680] Kernel Offset: disabled [ 52.799302] Rebooting in 86400 seconds..