[?25l[?1c7[ ok 8[?25h[?0c. [ 112.101462][ T32] audit: type=1800 audit(1583446268.149:25): pid=11535 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 112.132670][ T32] audit: type=1800 audit(1583446268.179:26): pid=11535 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 112.173725][ T32] audit: type=1800 audit(1583446268.209:27): pid=11535 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 '10.128.0.49' (ECDSA) to the list of known hosts. syzkaller login: [ 124.554129][T11687] IPVS: ftp: loaded support on port[0] = 21 [ 124.647820][T11687] chnl_net:caif_netlink_parms(): no params data found [ 124.726803][T11687] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.735209][T11687] bridge0: port 1(bridge_slave_0) entered disabled state [ 124.743970][T11687] device bridge_slave_0 entered promiscuous mode [ 124.753432][T11687] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.760853][T11687] bridge0: port 2(bridge_slave_1) entered disabled state [ 124.769746][T11687] device bridge_slave_1 entered promiscuous mode [ 124.797968][T11687] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 124.810681][T11687] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 124.839176][T11687] team0: Port device team_slave_0 added [ 124.847936][T11687] team0: Port device team_slave_1 added [ 124.871867][T11687] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 124.878967][T11687] 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. [ 124.905601][T11687] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 124.917772][T11687] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 124.924885][T11687] 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. [ 124.950989][T11687] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 125.025850][T11687] device hsr_slave_0 entered promiscuous mode [ 125.072921][T11687] device hsr_slave_1 entered promiscuous mode [ 125.225333][T11687] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 125.287000][T11687] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 125.346678][T11687] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 125.396787][T11687] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 125.479322][T11687] bridge0: port 2(bridge_slave_1) entered blocking state [ 125.486534][T11687] bridge0: port 2(bridge_slave_1) entered forwarding state [ 125.494483][T11687] bridge0: port 1(bridge_slave_0) entered blocking state [ 125.501697][T11687] bridge0: port 1(bridge_slave_0) entered forwarding state [ 125.565757][T11687] 8021q: adding VLAN 0 to HW filter on device bond0 [ 125.582611][ T3893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 125.593802][ T3893] bridge0: port 1(bridge_slave_0) entered disabled state [ 125.603216][ T3893] bridge0: port 2(bridge_slave_1) entered disabled state [ 125.614842][ T3893] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 125.632877][T11687] 8021q: adding VLAN 0 to HW filter on device team0 [ 125.646414][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 125.656770][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 125.666213][ T3398] bridge0: port 1(bridge_slave_0) entered blocking state [ 125.673490][ T3398] bridge0: port 1(bridge_slave_0) entered forwarding state [ 125.687767][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 125.698167][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 125.707678][ T30] bridge0: port 2(bridge_slave_1) entered blocking state [ 125.715551][ T30] bridge0: port 2(bridge_slave_1) entered forwarding state [ 125.729276][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 125.752567][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 125.762973][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 125.773339][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 125.783335][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 125.793960][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 125.805985][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 125.819726][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 125.829185][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 125.845744][T11687] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 125.858710][T11687] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 125.869889][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 125.879954][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 125.906726][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 125.914560][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 125.930457][T11687] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 125.955889][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 125.967087][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 125.994253][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 126.003522][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 126.018396][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 126.027658][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 126.039889][T11687] device veth0_vlan entered promiscuous mode [ 126.057842][T11687] device veth1_vlan entered promiscuous mode [ 126.087187][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 126.096274][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 126.105473][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 126.115008][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 126.130633][T11687] device veth0_macvtap entered promiscuous mode [ 126.144525][T11687] device veth1_macvtap entered promiscuous mode [ 126.170489][T11687] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 126.178446][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 126.188573][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 126.197911][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 126.207758][ T3398] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 126.225209][T11687] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 126.233537][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 126.243965][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 126.483115][ C1] ===================================================== [ 126.490184][ C1] BUG: KMSAN: use-after-free in find_match+0x317/0x1480 [ 126.497171][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.6.0-rc2-syzkaller #0 [ 126.505405][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.515453][ C1] Call Trace: [ 126.518728][ C1] dump_stack+0x1c9/0x220 [ 126.523046][ C1] kmsan_report+0xf7/0x1e0 [ 126.527444][ C1] __msan_warning+0x58/0xa0 [ 126.531945][ C1] find_match+0x317/0x1480 [ 126.536361][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.541545][ C1] __find_rr_leaf+0x3f9/0x1160 [ 126.546333][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 126.551465][ C1] fib6_table_lookup+0x586/0x1420 [ 126.556512][ C1] ip6_pol_route+0x203/0x2960 [ 126.561177][ C1] ? nf_ip6_checksum+0x501/0x610 [ 126.566108][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.571297][ C1] ip6_pol_route_input+0x123/0x140 [ 126.576397][ C1] fib6_rule_lookup+0x38f/0xa10 [ 126.581240][ C1] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 126.586771][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.591964][ C1] ip6_route_input+0xb9d/0xcf0 [ 126.596727][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.601937][ C1] ip6_rcv_finish_core+0x1f9/0x470 [ 126.607081][ C1] ipv6_rcv+0x628/0x710 [ 126.611229][ C1] ? local_bh_enable+0x40/0x40 [ 126.616063][ C1] process_backlog+0xa41/0x1410 [ 126.620939][ C1] ? __list_add_valid+0xb8/0x420 [ 126.625886][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 126.631139][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.636429][ C1] ? rps_trigger_softirq+0x2e0/0x2e0 [ 126.641794][ C1] net_rx_action+0x786/0x1aa0 [ 126.646479][ C1] ? net_tx_action+0xc30/0xc30 [ 126.651240][ C1] __do_softirq+0x311/0x83d [ 126.655773][ C1] ? ksoftirqd_should_run+0x30/0x30 [ 126.661070][ C1] ? takeover_tasklets+0x8f0/0x8f0 [ 126.666165][ C1] run_ksoftirqd+0x25/0x40 [ 126.670582][ C1] smpboot_thread_fn+0x493/0x980 [ 126.675555][ C1] kthread+0x4b5/0x4f0 [ 126.679616][ C1] ? cpu_report_death+0x180/0x180 [ 126.684645][ C1] ? kthread_blkcg+0xf0/0xf0 [ 126.689225][ C1] ret_from_fork+0x35/0x40 [ 126.693631][ C1] [ 126.695942][ C1] Uninit was created at: [ 126.700180][ C1] kmsan_internal_poison_shadow+0x66/0xd0 [ 126.705883][ C1] kmsan_slab_free+0x6e/0xb0 [ 126.710452][ C1] kfree+0x565/0x30a0 [ 126.714437][ C1] netdev_name_node_alt_destroy+0x587/0x690 [ 126.720308][ C1] rtnl_linkprop+0x939/0xc00 [ 126.724880][ C1] rtnl_dellinkprop+0x9d/0xb0 [ 126.729535][ C1] rtnetlink_rcv_msg+0x1153/0x1570 [ 126.734625][ C1] netlink_rcv_skb+0x451/0x650 [ 126.739487][ C1] rtnetlink_rcv+0x50/0x60 [ 126.743897][ C1] netlink_unicast+0xf9e/0x1100 [ 126.748829][ C1] netlink_sendmsg+0x1246/0x14d0 [ 126.753767][ C1] ____sys_sendmsg+0x12b6/0x1350 [ 126.758781][ C1] __sys_sendmsg+0x451/0x5f0 [ 126.763349][ C1] __se_sys_sendmsg+0x97/0xb0 [ 126.768015][ C1] __x64_sys_sendmsg+0x4a/0x70 [ 126.772801][ C1] do_syscall_64+0xb8/0x160 [ 126.777300][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 126.783173][ C1] ===================================================== [ 126.790161][ C1] Disabling lock debugging due to kernel taint [ 126.797273][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 126.803855][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 126.813374][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.823498][ C1] Call Trace: [ 126.826797][ C1] dump_stack+0x1c9/0x220 [ 126.831119][ C1] panic+0x3d5/0xc3e [ 126.835020][ C1] kmsan_report+0x1df/0x1e0 [ 126.839519][ C1] __msan_warning+0x58/0xa0 [ 126.844012][ C1] find_match+0x317/0x1480 [ 126.848425][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.853612][ C1] __find_rr_leaf+0x3f9/0x1160 [ 126.858546][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 126.863643][ C1] fib6_table_lookup+0x586/0x1420 [ 126.868692][ C1] ip6_pol_route+0x203/0x2960 [ 126.873378][ C1] ? nf_ip6_checksum+0x501/0x610 [ 126.878327][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.883546][ C1] ip6_pol_route_input+0x123/0x140 [ 126.888656][ C1] fib6_rule_lookup+0x38f/0xa10 [ 126.893511][ C1] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 126.899076][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.904282][ C1] ip6_route_input+0xb9d/0xcf0 [ 126.909047][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.914246][ C1] ip6_rcv_finish_core+0x1f9/0x470 [ 126.919352][ C1] ipv6_rcv+0x628/0x710 [ 126.923692][ C1] ? local_bh_enable+0x40/0x40 [ 126.928443][ C1] process_backlog+0xa41/0x1410 [ 126.933281][ C1] ? __list_add_valid+0xb8/0x420 [ 126.938202][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 126.943360][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 126.948949][ C1] ? rps_trigger_softirq+0x2e0/0x2e0 [ 126.954366][ C1] net_rx_action+0x786/0x1aa0 [ 126.959176][ C1] ? net_tx_action+0xc30/0xc30 [ 126.963962][ C1] __do_softirq+0x311/0x83d [ 126.968458][ C1] ? ksoftirqd_should_run+0x30/0x30 [ 126.973670][ C1] ? takeover_tasklets+0x8f0/0x8f0 [ 126.978765][ C1] run_ksoftirqd+0x25/0x40 [ 126.983272][ C1] smpboot_thread_fn+0x493/0x980 [ 126.988200][ C1] kthread+0x4b5/0x4f0 [ 126.992257][ C1] ? cpu_report_death+0x180/0x180 [ 126.997269][ C1] ? kthread_blkcg+0xf0/0xf0 [ 127.001838][ C1] ret_from_fork+0x35/0x40 [ 127.007710][ C1] Kernel Offset: 0x1da00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 127.019350][ C1] Rebooting in 86400 seconds..