[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 57.631503][ T27] audit: type=1800 audit(1582421196.420:25): pid=8877 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 57.676916][ T27] audit: type=1800 audit(1582421196.420:26): pid=8877 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 57.708365][ T27] audit: type=1800 audit(1582421196.420:27): pid=8877 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.175' (ECDSA) to the list of known hosts. syzkaller login: [ 73.090280][ T9030] IPVS: ftp: loaded support on port[0] = 21 [ 73.133172][ T9030] chnl_net:caif_netlink_parms(): no params data found [ 73.165466][ T9030] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.173147][ T9030] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.180713][ T9030] device bridge_slave_0 entered promiscuous mode [ 73.188908][ T9030] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.196137][ T9030] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.203890][ T9030] device bridge_slave_1 entered promiscuous mode [ 73.220444][ T9030] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.231283][ T9030] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.248615][ T9030] team0: Port device team_slave_0 added [ 73.255677][ T9030] team0: Port device team_slave_1 added [ 73.269406][ T9030] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.276622][ T9030] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.302658][ T9030] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.314758][ T9030] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.321752][ T9030] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.347647][ T9030] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.412797][ T9030] device hsr_slave_0 entered promiscuous mode [ 73.461728][ T9030] device hsr_slave_1 entered promiscuous mode [ 73.550623][ T9030] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.583647][ T9030] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.653489][ T9030] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.693607][ T9030] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.753795][ T9030] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.760899][ T9030] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.768617][ T9030] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.775725][ T9030] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.810013][ T9030] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.824243][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.835045][ T2792] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.842921][ T2792] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.850585][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.864536][ T9030] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.874715][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.883206][ T2701] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.890259][ T2701] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.913758][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.922458][ T2792] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.929507][ T2792] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.938221][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.947396][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.956659][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.965025][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.976767][ T9030] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.987950][ T9030] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.996198][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.017011][ T9030] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.024918][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.032425][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.048611][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.066115][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.075444][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.083261][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.093879][ T9030] device veth0_vlan entered promiscuous mode [ 74.104319][ T9030] device veth1_vlan entered promiscuous mode [ 74.122389][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.130279][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.138605][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.148655][ T9030] device veth0_macvtap entered promiscuous mode [ 74.158226][ T9030] device veth1_macvtap entered promiscuous mode [ 74.173200][ T9030] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.180751][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.190365][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.204123][ T9030] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.211776][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.220137][ T2701] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program [ 74.403378][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 74.403387][ T27] audit: type=1305 audit(1582421213.190:31): op=set audit_failure=2 old=1 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.424286][ T27] audit: type=1305 audit(1582421213.190:32): op=set audit_pid=0 old=0 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.428279][ T9030] audit: audit_backlog=9 > audit_backlog_limit=7 [ 74.438125][ T27] audit: type=1305 audit(1582421213.190:33): op=set audit_rate_limit=0 old=0 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.444807][ T9030] audit: audit_lost=1 audit_rate_limit=0 audit_backlog_limit=7 [ 74.458499][ T27] audit: type=1305 audit(1582421213.190:34): op=set audit_backlog_limit=7 old=64 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.465809][ T9030] Kernel panic - not syncing: audit: backlog limit exceeded [ 74.478633][ T27] audit: type=1305 audit(1582421213.190:35): op=set audit_backlog_wait_time=0 old=6000 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.484743][ T9030] CPU: 1 PID: 9030 Comm: syz-executor607 Not tainted 5.6.0-rc2-syzkaller #0 [ 74.484749][ T9030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.484753][ T9030] Call Trace: [ 74.484772][ T9030] dump_stack+0x1fb/0x318 [ 74.484791][ T9030] panic+0x264/0x7a9 [ 74.484807][ T9030] ? audit_log_lost+0x114/0x1e0 [ 74.484834][ T9030] audit_log_lost+0x1d7/0x1e0 [ 74.484848][ T9030] audit_log_start+0x3d1/0x820 [ 74.499512][ T27] audit: type=1305 audit(1582421213.210:36): op=set audit_enabled=1 old=1 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.506950][ T9030] audit_log+0x4a/0xc0 [ 74.506963][ T9030] ? local_bh_enable+0x9/0x30 [ 74.506986][ T9030] xt_replace_table+0x61b/0x7a0 [ 74.507009][ T9030] __do_replace+0x11b/0x970 [ 74.507041][ T9030] do_ip6t_set_ctl+0x363/0x550 [ 74.507075][ T9030] nf_setsockopt+0x27a/0x2a0 [ 74.507096][ T9030] ipv6_setsockopt+0x9a/0x160 [ 74.507114][ T9030] tcp_setsockopt+0xbe/0xd0 [ 74.507135][ T9030] sock_common_setsockopt+0x99/0xb0 [ 74.507146][ T9030] ? sock_common_recvmsg+0x190/0x190 [ 74.507161][ T9030] __sys_setsockopt+0x582/0x720 [ 74.507193][ T9030] __x64_sys_setsockopt+0xbf/0xd0 [ 74.507211][ T9030] do_syscall_64+0xf7/0x1c0 [ 74.507227][ T9030] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.507236][ T9030] RIP: 0033:0x44720a [ 74.507247][ T9030] Code: 49 89 ca b8 37 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 1a e0 fb ff c3 66 0f 1f 84 00 00 00 00 00 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 fa df fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 74.507258][ T9030] RSP: 002b:00007ffc4ad10b08 EFLAGS: 00000286 ORIG_RAX: 0000000000000036 [ 74.518735][ T27] audit: type=1305 audit(1582421213.210:36): op=set audit_failure=2 old=2 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.520580][ T9030] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000044720a [ 74.524948][ T27] audit: type=1305 audit(1582421213.210:36): op=set audit_pid=0 old=0 auid=4294967295 ses=4294967295 subj=_ res=1 [ 74.528753][ T9030] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 [ 74.528764][ T9030] RBP: 00007ffc4ad10c30 R08: 00000000000003b8 R09: 0000000000004000 [ 74.702713][ T9030] R10: 00000000006d7b40 R11: 0000000000000286 R12: 00007ffc4ad10b30 [ 74.710663][ T9030] R13: 00000000006d9d60 R14: 0000000000000029 R15: 00000000006d7ba0 [ 74.719734][ T9030] Kernel Offset: disabled [ 74.724098][ T9030] Rebooting in 86400 seconds..