[ 79.605428][ T27] audit: type=1800 audit(1582360154.291:26): pid=9687 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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. [ 80.447239][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 80.447251][ T27] audit: type=1800 audit(1582360155.151:29): pid=9687 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 80.473669][ T27] audit: type=1800 audit(1582360155.151:30): pid=9687 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts. syzkaller login: [ 91.616967][ T9840] IPVS: ftp: loaded support on port[0] = 21 [ 91.666726][ T9840] chnl_net:caif_netlink_parms(): no params data found [ 91.704260][ T9840] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.712007][ T9840] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.720652][ T9840] device bridge_slave_0 entered promiscuous mode [ 91.729142][ T9840] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.736511][ T9840] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.745045][ T9840] device bridge_slave_1 entered promiscuous mode [ 91.762756][ T9840] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 91.773912][ T9840] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 91.793643][ T9840] team0: Port device team_slave_0 added [ 91.801077][ T9840] team0: Port device team_slave_1 added [ 91.816295][ T9840] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 91.823492][ T9840] 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. [ 91.850203][ T9840] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 91.862959][ T9840] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 91.870033][ T9840] 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. [ 91.896544][ T9840] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 91.970364][ T9840] device hsr_slave_0 entered promiscuous mode [ 92.028223][ T9840] device hsr_slave_1 entered promiscuous mode [ 92.162515][ T9840] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 92.221273][ T9840] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 92.280834][ T9840] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 92.340458][ T9840] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.383323][ T9840] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.390506][ T9840] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.398482][ T9840] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.405559][ T9840] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.450136][ T9840] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.462888][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.473731][ T2764] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.482958][ T2764] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.491607][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 92.504302][ T9840] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.516849][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.525676][ T2764] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.533014][ T2764] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.545142][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.553985][ T2992] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.561266][ T2992] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.579871][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.588860][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 92.601418][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.614620][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.629459][ T9840] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 92.642602][ T9840] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 92.651244][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.669391][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 92.677014][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 92.692046][ T9840] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 92.709890][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 92.718741][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 92.743091][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 92.752831][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 92.762291][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 92.770674][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 92.781109][ T9840] device veth0_vlan entered promiscuous mode [ 92.793019][ T9840] device veth1_vlan entered promiscuous mode [ 92.813878][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 92.822731][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 92.830907][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 92.839569][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 92.851408][ T9840] device veth0_macvtap entered promiscuous mode [ 92.861595][ T9840] device veth1_macvtap entered promiscuous mode [ 92.877524][ T9840] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 92.885292][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 92.894521][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 92.903254][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 92.912345][ T2764] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 92.925127][ T9840] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 92.933383][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 92.942193][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 93.133315][ T27] audit: type=1305 audit(1582360167.841:31): op=set audit_failure=2 old=1 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 93.147241][ T27] audit: type=1305 audit(1582360167.841:32): op=set audit_pid=0 old=0 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 93.149624][ T9840] audit: audit_backlog=3 > audit_backlog_limit=2 [ 93.161328][ T27] audit: type=1305 audit(1582360167.841:33): op=set audit_rate_limit=4294967295 old=0 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 93.168126][ T9840] audit: audit_lost=1 audit_rate_limit=4294967295 audit_backlog_limit=2 [ 93.182827][ T27] audit: type=1305 audit(1582360167.841:34): op=set audit_backlog_limit=2 old=64 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 93.190860][ T9840] Kernel panic - not syncing: audit: backlog limit exceeded [ 93.204708][ T27] audit: type=1305 audit(1582360167.841:35): op=set audit_backlog_wait_time=0 old=6000 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 93.211598][ T9840] CPU: 0 PID: 9840 Comm: syz-executor388 Not tainted 5.6.0-rc1-syzkaller #0 [ 93.211607][ T9840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.211612][ T9840] Call Trace: [ 93.211637][ T9840] dump_stack+0x197/0x210 [ 93.211660][ T9840] panic+0x2e3/0x75c [ 93.211682][ T9840] ? add_taint.cold+0x16/0x16 [ 93.262560][ T9840] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 93.268030][ T9840] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 93.273839][ T9840] ? audit_panic+0x24/0x70 [ 93.278520][ T9840] audit_panic.cold+0x32/0x32 [ 93.283221][ T9840] audit_log_lost+0x8b/0x180 [ 93.287816][ T9840] audit_log_start+0x70e/0x7c0 [ 93.292574][ T9840] ? audit_log_task_context+0x170/0x170 [ 93.298221][ T9840] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 93.304368][ T9840] ? __kmalloc_node+0x3d/0x70 [ 93.309095][ T9840] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 93.314680][ T9840] ? __kasan_check_read+0x11/0x20 [ 93.319705][ T9840] audit_log+0x95/0x120 [ 93.323846][ T9840] ? audit_log_start+0x7c0/0x7c0 [ 93.328770][ T9840] ? mark_held_locks+0xa4/0xf0 [ 93.333553][ T9840] ? __local_bh_enable_ip+0x15a/0x270 [ 93.338914][ T9840] ? xt_replace_table+0x361/0x830 [ 93.343969][ T9840] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 93.349800][ T9840] ? _find_next_bit.constprop.0+0x17a/0x200 [ 93.355698][ T9840] xt_replace_table+0x61d/0x830 [ 93.360549][ T9840] __do_replace+0x1da/0x950 [ 93.365068][ T9840] ? get_info+0x570/0x570 [ 93.369399][ T9840] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.375960][ T9840] ? _copy_from_user+0x12c/0x1a0 [ 93.380900][ T9840] do_ip6t_set_ctl+0x33a/0x4c8 [ 93.385739][ T9840] ? compat_do_ip6t_set_ctl+0x170/0x170 [ 93.391294][ T9840] ? mutex_unlock+0xd/0x10 [ 93.395748][ T9840] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 93.401730][ T9840] nf_setsockopt+0x77/0xd0 [ 93.406286][ T9840] ipv6_setsockopt+0x147/0x180 [ 93.411176][ T9840] tcp_setsockopt+0x8f/0xe0 [ 93.415689][ T9840] sock_common_setsockopt+0x94/0xd0 [ 93.420953][ T9840] __sys_setsockopt+0x261/0x4c0 [ 93.425855][ T9840] ? sock_create_kern+0x50/0x50 [ 93.430710][ T9840] ? up_read+0x1cd/0x810 [ 93.435069][ T9840] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 93.440531][ T9840] ? do_syscall_64+0x26/0x790 [ 93.445289][ T9840] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.451489][ T9840] ? do_syscall_64+0x26/0x790 [ 93.456165][ T9840] __x64_sys_setsockopt+0xbe/0x150 [ 93.461327][ T9840] do_syscall_64+0xfa/0x790 [ 93.465895][ T9840] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.471776][ T9840] RIP: 0033:0x44720a [ 93.475701][ T9840] 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 [ 93.495357][ T9840] RSP: 002b:00007fffe078fa88 EFLAGS: 00000286 ORIG_RAX: 0000000000000036 [ 93.503769][ T9840] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000044720a [ 93.511741][ T9840] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 [ 93.519705][ T9840] RBP: 00007fffe078fbb0 R08: 00000000000003b8 R09: 0000000000004000 [ 93.527731][ T9840] R10: 00000000006d7b40 R11: 0000000000000286 R12: 00007fffe078fab0 [ 93.535711][ T9840] R13: 00000000006d9d60 R14: 0000000000000029 R15: 00000000006d7ba0 [ 93.545319][ T9840] Kernel Offset: disabled [ 93.549802][ T9840] Rebooting in 86400 seconds..