[ 37.060044] audit: type=1800 audit(1572042547.497:32): pid=7337 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 file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.817973] audit: type=1800 audit(1572042548.347:33): pid=7337 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.74' (ECDSA) to the list of known hosts. syzkaller login: [ 47.349111] kauditd_printk_skb: 2 callbacks suppressed [ 47.349126] audit: type=1400 audit(1572042557.877:36): avc: denied { map } for pid=7528 comm="syz-executor025" path="/root/syz-executor025745371" 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 [ 47.370401] IPVS: ftp: loaded support on port[0] = 21 [ 47.442795] chnl_net:caif_netlink_parms(): no params data found [ 47.474892] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.481797] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.489031] device bridge_slave_0 entered promiscuous mode [ 47.496180] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.502664] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.509657] device bridge_slave_1 entered promiscuous mode [ 47.524956] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.535362] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.551955] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.559606] team0: Port device team_slave_0 added [ 47.565138] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.572740] team0: Port device team_slave_1 added [ 47.578246] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.585576] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.669511] device hsr_slave_0 entered promiscuous mode [ 47.738231] device hsr_slave_1 entered promiscuous mode [ 47.808130] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 47.815337] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 47.829587] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.836020] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.843087] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.849569] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.880474] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 47.886633] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.895180] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 47.903940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.923746] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.931227] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.939736] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 47.950267] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 47.956348] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.967154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.975089] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.981475] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.991431] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.999396] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.005776] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.024626] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.034716] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.045796] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.053743] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.062026] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.069674] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 48.077290] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.085931] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.092890] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.105276] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.115115] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.125385] kasan: CONFIG_KASAN_INLINE enabled [ 48.130204] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.137622] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 48.143856] CPU: 1 PID: 7529 Comm: syz-executor025 Not tainted 4.19.80 #0 [ 48.150763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.160109] RIP: 0010:xfrmi_decode_session+0x153/0x78c [ 48.165367] 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 8b 99 63 fb e8 c6 0e 76 [ 48.184278] RSP: 0018:ffff888085c9f048 EFLAGS: 00010246 [ 48.189637] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff85f4bcfd [ 48.196898] RDX: 0000000000000000 RSI: ffffffff85f4b7ec RDI: ffff888091509788 [ 48.204201] RBP: ffff888085c9f070 R08: ffff888098d56000 R09: ffffed1015d24733 [ 48.211454] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff888091509780 [ 48.218705] R13: 0000000000000039 R14: 000000000000000b R15: ffff888095a18540 [ 48.225960] FS: 0000000000d45880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 48.234332] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.240200] CR2: 0000000020000100 CR3: 000000009250d000 CR4: 00000000001406e0 [ 48.247454] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.254706] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.261978] Call Trace: [ 48.264554] __xfrm_policy_check+0x1f6/0x2550 [ 48.269040] ? kasan_check_read+0x11/0x20 [ 48.273171] ? vti6_tnl_lookup+0x287/0x1020 [ 48.277473] ? find_held_lock+0x35/0x130 [ 48.281521] ? __xfrm_route_forward+0x810/0x810 [ 48.286173] ? __lock_is_held+0xb6/0x140 [ 48.290219] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.295738] ? vti6_tnl_lookup+0x69a/0x1020 [ 48.300042] ? kasan_check_read+0x11/0x20 [ 48.304179] ? vti6_tnl_xmit+0x1bd0/0x1bd0 [ 48.308417] vti6_rcv+0x4b9/0x931 [ 48.311860] xfrm6_esp_rcv+0xd2/0x230 [ 48.315649] ip6_input_finish+0x36f/0x17c0 [ 48.319873] ip6_input+0xe4/0x3f0 [ 48.323308] ? ip6_input_finish+0x17c0/0x17c0 [ 48.327797] ? ip6_sublist_rcv+0xcf0/0xcf0 [ 48.332014] ? ipv6_chk_mcast_addr+0x2f2/0x6f0 [ 48.336584] ip6_mc_input+0x427/0xad9 [ 48.340370] ? ipv6_list_rcv+0x4c0/0x4c0 [ 48.344420] ip6_rcv_finish+0x1de/0x2f0 [ 48.348377] ipv6_rcv+0x119/0x430 [ 48.351816] ? ip6_rcv_core.isra.0+0x1b30/0x1b30 [ 48.356555] ? ip6_rcv_finish_core.isra.0+0x560/0x560 [ 48.361731] ? ip6_rcv_core.isra.0+0x1b30/0x1b30 [ 48.366472] __netif_receive_skb_one_core+0x113/0x1a0 [ 48.371647] ? __netif_receive_skb_core+0x3570/0x3570 [ 48.376822] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.382356] ? check_preemption_disabled+0x48/0x290 [ 48.387356] ? lock_acquire+0x16f/0x3f0 [ 48.391314] __netif_receive_skb+0x2c/0x1d0 [ 48.395623] netif_receive_skb_internal+0x117/0x700 [ 48.400625] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 48.406149] ? dev_cpu_dead+0x920/0x920 [ 48.410108] ? eth_gro_receive+0x8a0/0x8a0 [ 48.414329] napi_gro_frags+0x602/0xa20 [ 48.418290] tun_get_user+0x2ed8/0x4ba0 [ 48.422250] ? mark_held_locks+0x100/0x100 [ 48.426470] ? tun_build_skb.isra.0+0x1950/0x1950 [ 48.431309] ? tun_get+0x171/0x290 [ 48.434838] ? lock_downgrade+0x880/0x880 [ 48.438975] ? kasan_check_read+0x11/0x20 [ 48.443108] tun_chr_write_iter+0xbd/0x156 [ 48.447326] do_iter_readv_writev+0x558/0x830 [ 48.451819] ? vfs_dedupe_file_range+0x6f0/0x6f0 [ 48.456563] ? security_file_permission+0x89/0x230 [ 48.461565] ? rw_verify_area+0x118/0x360 [ 48.465696] do_iter_write+0x184/0x5f0 [ 48.469568] ? dup_iter+0x270/0x270 [ 48.473190] vfs_writev+0x1b3/0x2f0 [ 48.476801] ? vfs_iter_write+0xb0/0xb0 [ 48.480756] ? vmf_insert_mixed_mkwrite+0x90/0x90 [ 48.488627] ? __do_page_fault+0x676/0xe90 [ 48.492849] ? lock_downgrade+0x880/0x880 [ 48.496980] ? count_memcg_event_mm+0x2b1/0x4d0 [ 48.501632] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.507151] ? __fget_light+0x1a9/0x230 [ 48.511109] do_writev+0x15e/0x370 [ 48.514636] ? vfs_writev+0x2f0/0x2f0 [ 48.518420] ? do_syscall_64+0x26/0x620 [ 48.522379] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.527757] ? do_syscall_64+0x26/0x620 [ 48.531716] __x64_sys_writev+0x75/0xb0 [ 48.535686] do_syscall_64+0xfd/0x620 [ 48.539470] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.544638] RIP: 0033:0x4422c0 [ 48.547815] 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 51 9d 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 [ 48.566700] RSP: 002b:00007fff02a22a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 48.574393] RAX: ffffffffffffffda RBX: 00007fff02a22a70 RCX: 00000000004422c0 [ 48.581644] RDX: 0000000000000001 RSI: 00007fff02a22a70 RDI: 00000000000000f0 [ 48.588905] RBP: 0000000000000003 R08: 0000000000000100 R09: 0000000000000000 [ 48.596156] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff02a22a30 [ 48.603404] R13: 00000000004036b0 R14: 0000000000000000 R15: 0000000000000000 [ 48.610670] Modules linked in: [ 48.613898] ---[ end trace 7fab61a4daccb817 ]--- [ 48.618691] RIP: 0010:xfrmi_decode_session+0x153/0x78c [ 48.623986] 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 8b 99 63 fb e8 c6 0e 76 [ 48.642920] RSP: 0018:ffff888085c9f048 EFLAGS: 00010246 [ 48.648364] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff85f4bcfd [ 48.655630] RDX: 0000000000000000 RSI: ffffffff85f4b7ec RDI: ffff888091509788 [ 48.662938] RBP: ffff888085c9f070 R08: ffff888098d56000 R09: ffffed1015d24733 [ 48.670757] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff888091509780 [ 48.678042] R13: 0000000000000039 R14: 000000000000000b R15: ffff888095a18540 [ 48.685310] FS: 0000000000d45880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 48.693553] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.699488] CR2: 0000000020000100 CR3: 000000009250d000 CR4: 00000000001406e0 [ 48.706761] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.714205] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.721522] Kernel panic - not syncing: Fatal exception in interrupt [ 48.729346] Kernel Offset: disabled [ 48.732977] Rebooting in 86400 seconds..