[ 38.809137] audit: type=1800 audit(1576400319.876:31): pid=7507 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=2469 res=0 [ 38.830732] audit: type=1800 audit(1576400319.876:32): pid=7507 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: sshd[?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 '10.128.0.195' (ECDSA) to the list of known hosts. syzkaller login: [ 46.967282] kauditd_printk_skb: 3 callbacks suppressed [ 46.967297] audit: type=1400 audit(1576400328.086:36): avc: denied { map } for pid=7695 comm="syz-executor332" path="/root/syz-executor332067941" 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 [ 46.987654] IPVS: ftp: loaded support on port[0] = 21 [ 47.023797] audit: type=1400 audit(1576400328.136:37): avc: denied { create } for pid=7696 comm="syz-executor332" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 47.050243] audit: type=1400 audit(1576400328.136:38): avc: denied { write } for pid=7696 comm="syz-executor332" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 47.074923] audit: type=1400 audit(1576400328.136:39): avc: denied { read } for pid=7696 comm="syz-executor332" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 47.124357] chnl_net:caif_netlink_parms(): no params data found [ 47.154067] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.160761] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.168093] device bridge_slave_0 entered promiscuous mode [ 47.175901] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.182364] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.189562] device bridge_slave_1 entered promiscuous mode [ 47.204997] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.214583] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.233083] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.241672] team0: Port device team_slave_0 added [ 47.247463] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.255109] team0: Port device team_slave_1 added [ 47.260554] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.268254] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.336105] device hsr_slave_0 entered promiscuous mode [ 47.374213] device hsr_slave_1 entered promiscuous mode [ 47.414648] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 47.421803] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 47.436582] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.443020] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.449990] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.456390] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.488703] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 47.494990] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.503329] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 47.512626] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.532637] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.540171] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.548109] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 47.558466] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 47.564852] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.574435] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.582044] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.588437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.599110] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.607836] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.614297] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.630758] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.639337] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.649022] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.660002] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.671259] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 47.682424] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 47.689055] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 47.696384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.710203] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 47.718374] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 47.725426] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready executing program [ 47.737455] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 47.748653] kasan: CONFIG_KASAN_INLINE enabled [ 47.753348] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.760860] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 47.767103] CPU: 1 PID: 7696 Comm: syz-executor332 Not tainted 4.19.89-syzkaller #0 [ 47.775240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.784975] RIP: 0010:xfrmi_decode_session+0x153/0x790 [ 47.790243] 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 7b 04 0c fb e8 16 7a 1e [ 47.809249] RSP: 0018:ffff88808515f178 EFLAGS: 00010246 [ 47.814617] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff864cce82 [ 47.821895] RDX: 0000000000000000 RSI: ffffffff864cc8bc RDI: ffff88808dfc5788 [ 47.829189] RBP: ffff88808515f1a0 R08: ffff888086e8e280 R09: ffffed1015d24733 [ 47.836446] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff88808dfc5780 [ 47.843710] R13: 0000000000000039 R14: 000000000000000b R15: ffff88809ae98500 [ 47.850975] FS: 0000000000892940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 47.859325] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.865368] CR2: 0000000020000200 CR3: 0000000092a11000 CR4: 00000000001406e0 [ 47.872626] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.879894] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.887150] Call Trace: [ 47.889747] __xfrm_policy_check+0x1f6/0x2550 [ 47.894257] ? kasan_check_read+0x11/0x20 [ 47.898426] ? __xfrm_route_forward+0x810/0x810 [ 47.903109] ? nf_ct_deliver_cached_events+0x216/0x6e0 [ 47.908422] ? __lock_is_held+0xb6/0x140 [ 47.912486] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.918009] ? ip_tunnel_lookup+0xa0f/0xe00 [ 47.922317] vti_input+0x50f/0x770 [ 47.925845] vti_rcv+0x10b/0x140 [ 47.929334] xfrm4_esp_rcv+0xd2/0x230 [ 47.933149] ip_local_deliver_finish+0x27e/0xc30 [ 47.938340] ip_local_deliver+0x1e9/0x520 [ 47.942508] ? ip_call_ra_chain+0x5c0/0x5c0 [ 47.946839] ? ip_sublist_rcv_finish+0x310/0x310 [ 47.951576] ? ip_rcv_finish_core.isra.0+0x803/0x1af0 [ 47.956753] ip_rcv_finish+0x1d9/0x2e0 [ 47.960633] ip_rcv+0xe8/0x3f0 [ 47.963829] ? ip_local_deliver+0x520/0x520 [ 47.968155] ? ip_rcv_finish_core.isra.0+0x1af0/0x1af0 [ 47.973419] ? ip_local_deliver+0x520/0x520 [ 47.977738] __netif_receive_skb_one_core+0x113/0x1a0 [ 47.982951] ? __netif_receive_skb_core+0x2c50/0x2c50 [ 47.988125] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.993661] ? check_preemption_disabled+0x48/0x290 [ 47.998780] ? lock_acquire+0x16f/0x3f0 [ 48.002772] __netif_receive_skb+0x2c/0x1d0 [ 48.007079] netif_receive_skb_internal+0x117/0x700 [ 48.012261] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 48.017802] ? dev_cpu_dead+0x920/0x920 [ 48.021766] ? eth_gro_receive+0x8a0/0x8a0 [ 48.026000] napi_gro_frags+0x602/0xa20 [ 48.029962] tun_get_user+0x2f08/0x4c30 [ 48.033938] ? mark_held_locks+0x100/0x100 [ 48.038226] ? tun_build_skb.isra.0+0x1a40/0x1a40 [ 48.043103] ? tun_get+0x171/0x290 [ 48.046693] ? lock_downgrade+0x880/0x880 [ 48.050868] ? kasan_check_read+0x11/0x20 [ 48.055013] tun_chr_write_iter+0xbd/0x156 [ 48.059281] do_iter_readv_writev+0x558/0x830 [ 48.063773] ? vfs_dedupe_file_range+0x6f0/0x6f0 [ 48.068525] ? security_file_permission+0x89/0x230 [ 48.073444] ? rw_verify_area+0x118/0x360 [ 48.077625] do_iter_write+0x184/0x5f0 [ 48.081497] ? dup_iter+0x270/0x270 [ 48.085111] vfs_writev+0x1b3/0x2f0 [ 48.088740] ? vfs_iter_write+0xb0/0xb0 [ 48.092707] ? copy_page_range+0x2030/0x2030 [ 48.097155] ? __do_page_fault+0x676/0xe90 [ 48.101386] ? lock_downgrade+0x880/0x880 [ 48.105542] ? count_memcg_event_mm+0x2b1/0x4d0 [ 48.110215] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.118535] ? __fget_light+0x1a9/0x230 [ 48.122515] do_writev+0x15e/0x370 [ 48.126054] ? vfs_writev+0x2f0/0x2f0 [ 48.129846] ? do_syscall_64+0x26/0x620 [ 48.133821] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.139183] ? do_syscall_64+0x26/0x620 [ 48.143147] __x64_sys_writev+0x75/0xb0 [ 48.147122] do_syscall_64+0xfd/0x620 [ 48.150920] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.156098] RIP: 0033:0x443290 [ 48.159285] 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 c1 a1 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 9a 2b 00 00 [ 48.178198] RSP: 002b:00007ffe518f83e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 48.185906] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443290 [ 48.193207] RDX: 0000000000000001 RSI: 00007ffe518f83f0 RDI: 00000000000000f0 [ 48.200679] RBP: 0000000000000003 R08: 0000000000000014 R09: 0000000000000000 [ 48.207951] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 48.215209] R13: 0000000000404680 R14: 0000000000000000 R15: 0000000000000000 [ 48.222484] Modules linked in: [ 48.225726] ---[ end trace 6a97bb458f0dc759 ]--- [ 48.230496] RIP: 0010:xfrmi_decode_session+0x153/0x790 [ 48.236242] 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 7b 04 0c fb e8 16 7a 1e [ 48.255184] RSP: 0018:ffff88808515f178 EFLAGS: 00010246 [ 48.260538] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff864cce82 [ 48.267816] RDX: 0000000000000000 RSI: ffffffff864cc8bc RDI: ffff88808dfc5788 [ 48.275710] RBP: ffff88808515f1a0 R08: ffff888086e8e280 R09: ffffed1015d24733 [ 48.282966] R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff88808dfc5780 [ 48.290274] R13: 0000000000000039 R14: 000000000000000b R15: ffff88809ae98500 [ 48.297580] FS: 0000000000892940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 48.305827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.311704] CR2: 0000000020000200 CR3: 0000000092a11000 CR4: 00000000001406e0 [ 48.319600] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.327060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.334348] Kernel panic - not syncing: Fatal exception in interrupt [ 48.342066] Kernel Offset: disabled [ 48.345700] Rebooting in 86400 seconds..