[ 36.800869] audit: type=1800 audit(1572372551.947:32): pid=7350 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=2450 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: ssh[ 37.746548] audit: type=1800 audit(1572372552.967:33): pid=7350 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 d[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.231' (ECDSA) to the list of known hosts. syzkaller login: [ 46.770187] kauditd_printk_skb: 2 callbacks suppressed [ 46.770201] audit: type=1400 audit(1572372561.997:36): avc: denied { map } for pid=7539 comm="syz-executor552" path="/root/syz-executor552573111" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 46.789901] IPVS: ftp: loaded support on port[0] = 21 [ 46.863315] chnl_net:caif_netlink_parms(): no params data found [ 46.894215] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.901072] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.908971] device bridge_slave_0 entered promiscuous mode [ 46.916133] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.922640] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.930004] device bridge_slave_1 entered promiscuous mode [ 46.945357] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 46.954669] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.971559] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.979159] team0: Port device team_slave_0 added [ 46.985584] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.992967] team0: Port device team_slave_1 added [ 46.998346] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.005525] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.059858] device hsr_slave_0 entered promiscuous mode [ 47.127891] device hsr_slave_1 entered promiscuous mode [ 47.168057] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 47.174922] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 47.188809] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.195337] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.202373] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.208757] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.238650] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 47.244725] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.253898] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 47.262523] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.282798] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.290054] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.297055] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 47.307896] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 47.313959] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.323591] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.331723] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.338103] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.357402] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 47.367465] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 47.379558] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 47.386533] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.394547] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.400937] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.408903] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.416484] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.424181] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.431782] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 47.439393] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 47.446121] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.457059] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 47.468358] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 47.478150] kasan: CONFIG_KASAN_INLINE enabled [ 47.483314] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.490719] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 47.499007] CPU: 1 PID: 7540 Comm: syz-executor552 Not tainted 4.19.81 #0 [ 47.505915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.515267] RIP: 0010:xfrmi_decode_session+0x153/0x78c [ 47.520530] Code: 7c dc 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 06 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c dc 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 d9 05 00 00 4c 8b 23 e8 5b 99 63 fb e8 96 0e 76 [ 47.539430] RSP: 0018:ffff888082627120 EFLAGS: 00010246 [ 47.544773] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff85f4bd2d [ 47.552024] RDX: 0000000000000000 RSI: ffffffff85f4b81c RDI: ffff8880a8efe788 [ 47.559276] RBP: ffff888082627148 R08: ffff8880991e0480 R09: ffffed1015d24733 [ 47.566525] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff8880a8efe780 [ 47.573785] R13: 0000000000000039 R14: 000000000000000b R15: ffff888086e48540 [ 47.581051] FS: 0000000000b22880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 47.589256] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.595126] CR2: 0000000020000140 CR3: 000000008fc32000 CR4: 00000000001406e0 [ 47.602397] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.609650] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.616897] Call Trace: [ 47.619478] __xfrm_policy_check+0x1f6/0x2550 [ 47.623953] ? kasan_check_read+0x11/0x20 [ 47.628105] ? vti6_tnl_lookup+0x287/0x1020 [ 47.632407] ? find_held_lock+0x35/0x130 [ 47.636447] ? vti6_tnl_lookup+0x287/0x1020 [ 47.640755] ? __xfrm_route_forward+0x810/0x810 [ 47.645840] ? __lock_is_held+0xb6/0x140 [ 47.649889] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.655406] ? vti6_tnl_lookup+0x69a/0x1020 [ 47.659708] ? vti6_tnl_xmit+0x1bd0/0x1bd0 [ 47.663926] ? check_preemption_disabled+0x48/0x290 [ 47.668927] vti6_rcv+0x4b9/0x931 [ 47.672374] xfrm6_esp_rcv+0xd2/0x230 [ 47.676245] ip6_input_finish+0x36f/0x17c0 [ 47.680470] ip6_input+0xe4/0x3f0 [ 47.683905] ? ip6_input_finish+0x17c0/0x17c0 [ 47.688385] ? ip6_sublist_rcv+0xcf0/0xcf0 [ 47.692603] ip6_rcv_finish+0x1de/0x2f0 [ 47.696568] ipv6_rcv+0x119/0x430 [ 47.700006] ? ip6_rcv_core.isra.0+0x1b30/0x1b30 [ 47.704746] ? ip6_rcv_finish_core.isra.0+0x560/0x560 [ 47.709967] ? ip6_rcv_core.isra.0+0x1b30/0x1b30 [ 47.714704] __netif_receive_skb_one_core+0x113/0x1a0 [ 47.719886] ? __netif_receive_skb_core+0x3570/0x3570 [ 47.725056] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.730580] ? check_preemption_disabled+0x48/0x290 [ 47.735675] ? lock_acquire+0x16f/0x3f0 [ 47.739636] __netif_receive_skb+0x2c/0x1d0 [ 47.743941] netif_receive_skb_internal+0x117/0x700 [ 47.748941] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 47.754461] ? dev_cpu_dead+0x920/0x920 [ 47.758427] ? eth_gro_receive+0x8a0/0x8a0 [ 47.762643] napi_gro_frags+0x602/0xa20 [ 47.766609] tun_get_user+0x2ed8/0x4ba0 [ 47.770569] ? mark_held_locks+0x100/0x100 [ 47.774791] ? tun_build_skb.isra.0+0x1950/0x1950 [ 47.779614] ? tun_get+0x171/0x290 [ 47.783151] ? lock_downgrade+0x880/0x880 [ 47.787280] ? kasan_check_read+0x11/0x20 [ 47.791416] tun_chr_write_iter+0xbd/0x156 [ 47.795634] do_iter_readv_writev+0x558/0x830 [ 47.800112] ? vfs_dedupe_file_range+0x6f0/0x6f0 [ 47.804850] ? security_file_permission+0x89/0x230 [ 47.809765] ? rw_verify_area+0x118/0x360 [ 47.813892] do_iter_write+0x184/0x5f0 [ 47.817761] ? dup_iter+0x270/0x270 [ 47.821370] vfs_writev+0x1b3/0x2f0 [ 47.824978] ? vfs_iter_write+0xb0/0xb0 [ 47.828936] ? vmf_insert_mixed_mkwrite+0x90/0x90 [ 47.833762] ? __do_page_fault+0x676/0xe90 [ 47.837978] ? lock_downgrade+0x880/0x880 [ 47.842118] ? count_memcg_event_mm+0x2b1/0x4d0 [ 47.846779] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.852298] ? __fget_light+0x1a9/0x230 [ 47.856264] do_writev+0x15e/0x370 [ 47.859789] ? vfs_writev+0x2f0/0x2f0 [ 47.863571] ? do_syscall_64+0x26/0x620 [ 47.867543] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.872893] ? do_syscall_64+0x26/0x620 [ 47.876849] __x64_sys_writev+0x75/0xb0 [ 47.880822] do_syscall_64+0xfd/0x620 [ 47.884606] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.889775] RIP: 0033:0x442170 [ 47.892968] Code: 05 48 3d 01 f0 ff ff 0f 83 fd 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d a1 9e 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 0e fc ff c3 48 83 ec 08 e8 7a 2b 00 00 [ 47.911864] RSP: 002b:00007ffde676e928 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 47.919564] RAX: ffffffffffffffda RBX: 00007ffde676e980 RCX: 0000000000442170 [ 47.926815] RDX: 0000000000000001 RSI: 00007ffde676e980 RDI: 00000000000000f0 [ 47.934063] RBP: 0000000000000003 R08: 000000000000ff70 R09: 0000000000000000 [ 47.941317] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffde676e940 [ 47.948565] R13: 0000000000403560 R14: 0000000000000000 R15: 0000000000000000 [ 47.955820] Modules linked in: [ 47.959055] ---[ end trace 2f9588c211caac50 ]--- [ 47.963827] RIP: 0010:xfrmi_decode_session+0x153/0x78c [ 47.969126] Code: 7c dc 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 06 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c dc 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 d9 05 00 00 4c 8b 23 e8 5b 99 63 fb e8 96 0e 76 [ 47.988053] RSP: 0018:ffff888082627120 EFLAGS: 00010246 [ 47.993442] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff85f4bd2d [ 48.000722] RDX: 0000000000000000 RSI: ffffffff85f4b81c RDI: ffff8880a8efe788 [ 48.008000] RBP: ffff888082627148 R08: ffff8880991e0480 R09: ffffed1015d24733 [ 48.015253] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff8880a8efe780 [ 48.022536] R13: 0000000000000039 R14: 000000000000000b R15: ffff888086e48540 [ 48.029827] FS: 0000000000b22880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 48.038066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.043937] CR2: 0000000020000140 CR3: 000000008fc32000 CR4: 00000000001406e0 [ 48.051219] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.058493] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.065750] Kernel panic - not syncing: Fatal exception in interrupt [ 48.073664] Kernel Offset: disabled [ 48.077299] Rebooting in 86400 seconds..