[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 79.873534][ T27] audit: type=1800 audit(1582341892.879:25): pid=9758 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 79.904296][ T27] audit: type=1800 audit(1582341892.889:26): pid=9758 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 79.953708][ T27] audit: type=1800 audit(1582341892.889:27): pid=9758 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.0.7' (ECDSA) to the list of known hosts. syzkaller login: [ 99.005793][ T9913] IPVS: ftp: loaded support on port[0] = 21 [ 99.055895][ T9913] chnl_net:caif_netlink_parms(): no params data found [ 99.094185][ T9913] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.101742][ T9913] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.110196][ T9913] device bridge_slave_0 entered promiscuous mode [ 99.118807][ T9913] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.126252][ T9913] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.134021][ T9913] device bridge_slave_1 entered promiscuous mode [ 99.151890][ T9913] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.163075][ T9913] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.183510][ T9913] team0: Port device team_slave_0 added [ 99.191042][ T9913] team0: Port device team_slave_1 added [ 99.206466][ T9913] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.213548][ T9913] 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. [ 99.239822][ T9913] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.253748][ T9913] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.260876][ T9913] 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. [ 99.287094][ T9913] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.366935][ T9913] device hsr_slave_0 entered promiscuous mode [ 99.404584][ T9913] device hsr_slave_1 entered promiscuous mode [ 99.509380][ T9913] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 99.567764][ T9913] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 99.626670][ T9913] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 99.666805][ T9913] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 99.740786][ T9913] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.748228][ T9913] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.756267][ T9913] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.763342][ T9913] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.807408][ T9913] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.821477][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 99.842124][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.861314][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.869516][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 99.882669][ T9913] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.893767][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 99.903035][ T2787] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.910180][ T2787] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.922504][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 99.931683][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.939068][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.967194][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 99.976359][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 99.984915][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 99.993369][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 100.006071][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 100.017490][ T9913] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 100.037414][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 100.045572][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 100.060046][ T9913] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 100.079603][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 100.089149][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 100.112997][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 100.122711][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 100.132631][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 100.141258][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 100.150550][ T9913] device veth0_vlan entered promiscuous mode [ 100.163140][ T9913] device veth1_vlan entered promiscuous mode [ 100.185151][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 100.193450][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 100.202141][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 100.211532][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 100.223416][ T9913] device veth0_macvtap entered promiscuous mode [ 100.233548][ T9913] device veth1_macvtap entered promiscuous mode [ 100.252433][ T9913] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 100.260061][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 100.269547][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 100.278060][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 100.287073][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 100.299742][ T9913] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 100.308025][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 100.316730][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program [ 100.498181][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 100.498192][ T27] audit: type=1305 audit(1582341913.509:31): op=set audit_failure=2 old=1 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 100.520570][ T27] audit: type=1305 audit(1582341913.509:32): op=set audit_pid=0 old=0 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 100.524685][ T9913] audit: audit_backlog=13 > audit_backlog_limit=7 [ 100.533747][ T27] audit: type=1305 audit(1582341913.509:33): op=set audit_rate_limit=0 old=0 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 100.540731][ T9913] audit: audit_lost=1 audit_rate_limit=0 audit_backlog_limit=7 [ 100.556712][ T27] audit: type=1305 audit(1582341913.509:34): op=set audit_backlog_limit=7 old=64 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 100.563425][ T9913] Kernel panic - not syncing: audit: backlog limit exceeded [ 100.577981][ T27] audit: type=1305 audit(1582341913.509:35): op=set audit_backlog_wait_time=0 old=6000 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 100.583701][ T9913] CPU: 1 PID: 9913 Comm: syz-executor024 Not tainted 5.6.0-rc1-syzkaller #0 [ 100.599611][ T27] audit: type=1325 audit(1582341913.519:36): table=filter family=10 entries=4 [ 100.607049][ T9913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.607056][ T9913] Call Trace: [ 100.607083][ T9913] dump_stack+0x197/0x210 [ 100.607107][ T9913] panic+0x2e3/0x75c [ 100.607120][ T9913] ? add_taint.cold+0x16/0x16 [ 100.607143][ T9913] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 100.617056][ T27] audit: type=1325 audit(1582341913.519:37): table=mangle family=10 entries=6 [ 100.626840][ T9913] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 100.626858][ T9913] ? audit_panic+0x24/0x70 [ 100.626879][ T9913] audit_panic.cold+0x32/0x32 [ 100.626893][ T9913] audit_log_lost+0x8b/0x180 [ 100.626914][ T9913] audit_log_start+0x70e/0x7c0 [ 100.626943][ T9913] ? audit_log_task_context+0x170/0x170 [ 100.630952][ T27] audit: type=1325 audit(1582341913.519:38): table=raw family=10 entries=3 [ 100.635113][ T9913] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 100.635133][ T9913] ? __kmalloc_node+0x3d/0x70 [ 100.635147][ T9913] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 100.635169][ T9913] ? __kasan_check_read+0x11/0x20 [ 100.635190][ T9913] audit_log+0x95/0x120 [ 100.635205][ T9913] ? audit_log_start+0x7c0/0x7c0 [ 100.635218][ T9913] ? mark_held_locks+0xa4/0xf0 [ 100.635235][ T9913] ? __local_bh_enable_ip+0x15a/0x270 [ 100.635249][ T9913] ? xt_replace_table+0x361/0x830 [ 100.635270][ T9913] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 100.748115][ T9913] ? _find_next_bit.constprop.0+0x17a/0x200 [ 100.754003][ T9913] xt_replace_table+0x61d/0x830 [ 100.758888][ T9913] __do_replace+0x1da/0x950 [ 100.763613][ T9913] ? get_info+0x570/0x570 [ 100.767972][ T9913] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 100.774297][ T9913] ? _copy_from_user+0x12c/0x1a0 [ 100.779593][ T9913] do_ip6t_set_ctl+0x33a/0x4c8 [ 100.784475][ T9913] ? compat_do_ip6t_set_ctl+0x170/0x170 [ 100.790194][ T9913] ? mutex_unlock+0xd/0x10 [ 100.794647][ T9913] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 100.800642][ T9913] nf_setsockopt+0x77/0xd0 [ 100.805097][ T9913] ipv6_setsockopt+0x147/0x180 [ 100.809853][ T9913] tcp_setsockopt+0x8f/0xe0 [ 100.814376][ T9913] sock_common_setsockopt+0x94/0xd0 [ 100.819589][ T9913] __sys_setsockopt+0x261/0x4c0 [ 100.824435][ T9913] ? sock_create_kern+0x50/0x50 [ 100.829357][ T9913] ? up_read+0x1cd/0x810 [ 100.833595][ T9913] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 100.839098][ T9913] ? do_syscall_64+0x26/0x790 [ 100.843949][ T9913] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.850012][ T9913] ? do_syscall_64+0x26/0x790 [ 100.854840][ T9913] __x64_sys_setsockopt+0xbe/0x150 [ 100.860008][ T9913] do_syscall_64+0xfa/0x790 [ 100.864637][ T9913] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.870521][ T9913] RIP: 0033:0x44720a [ 100.874441][ T9913] 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 [ 100.894481][ T9913] RSP: 002b:00007ffd032dec78 EFLAGS: 00000286 ORIG_RAX: 0000000000000036 [ 100.903025][ T9913] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000044720a [ 100.912725][ T9913] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 [ 100.920715][ T9913] RBP: 00007ffd032deda0 R08: 00000000000003b8 R09: 0000000000004000 [ 100.928699][ T9913] R10: 00000000006d7b40 R11: 0000000000000286 R12: 00007ffd032deca0 [ 100.936815][ T9913] R13: 00000000006d9d60 R14: 0000000000000029 R15: 00000000006d7ba0 [ 100.946583][ T9913] Kernel Offset: disabled [ 100.950997][ T9913] Rebooting in 86400 seconds..