[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 121.796776][ T32] kauditd_printk_skb: 4 callbacks suppressed [ 121.796821][ T32] audit: type=1800 audit(1582799115.864:39): pid=11260 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 121.826115][ T32] audit: type=1800 audit(1582799115.874:40): pid=11260 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [ 122.884365][ T32] audit: type=1400 audit(1582799116.954:41): avc: denied { map } for pid=11436 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.207' (ECDSA) to the list of known hosts. syzkaller login: [ 131.339615][ T32] audit: type=1400 audit(1582799125.404:42): avc: denied { map } for pid=11448 comm="syz-executor455" path="/root/syz-executor455118133" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 131.389938][T11449] IPVS: ftp: loaded support on port[0] = 21 [ 131.481942][T11449] chnl_net:caif_netlink_parms(): no params data found [ 131.562667][T11449] bridge0: port 1(bridge_slave_0) entered blocking state [ 131.569843][T11449] bridge0: port 1(bridge_slave_0) entered disabled state [ 131.578643][T11449] device bridge_slave_0 entered promiscuous mode [ 131.589100][T11449] bridge0: port 2(bridge_slave_1) entered blocking state [ 131.597589][T11449] bridge0: port 2(bridge_slave_1) entered disabled state [ 131.606169][T11449] device bridge_slave_1 entered promiscuous mode [ 131.635155][T11449] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 131.649382][T11449] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 131.678330][T11449] team0: Port device team_slave_0 added [ 131.688399][T11449] team0: Port device team_slave_1 added [ 131.713464][T11449] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 131.720686][T11449] 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. [ 131.746695][T11449] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 131.760998][T11449] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 131.768216][T11449] 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. [ 131.794660][T11449] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 131.866388][T11449] device hsr_slave_0 entered promiscuous mode [ 131.912879][T11449] device hsr_slave_1 entered promiscuous mode [ 132.096567][ T32] audit: type=1400 audit(1582799126.164:43): avc: denied { create } for pid=11449 comm="syz-executor455" 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 [ 132.124033][ T32] audit: type=1400 audit(1582799126.194:44): avc: denied { write } for pid=11449 comm="syz-executor455" 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 [ 132.127912][T11449] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 132.149041][ T32] audit: type=1400 audit(1582799126.194:45): avc: denied { read } for pid=11449 comm="syz-executor455" 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 [ 132.187567][T11449] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 132.258004][T11449] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 132.317740][T11449] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 132.410903][T11449] bridge0: port 2(bridge_slave_1) entered blocking state [ 132.418214][T11449] bridge0: port 2(bridge_slave_1) entered forwarding state [ 132.426134][T11449] bridge0: port 1(bridge_slave_0) entered blocking state [ 132.433518][T11449] bridge0: port 1(bridge_slave_0) entered forwarding state [ 132.484131][ T2735] bridge0: port 1(bridge_slave_0) entered disabled state [ 132.493619][ T2735] bridge0: port 2(bridge_slave_1) entered disabled state [ 132.553388][T11449] 8021q: adding VLAN 0 to HW filter on device bond0 [ 132.576460][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 132.586477][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 132.601772][T11449] 8021q: adding VLAN 0 to HW filter on device team0 [ 132.617827][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 132.630366][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 132.639750][ T2735] bridge0: port 1(bridge_slave_0) entered blocking state [ 132.647121][ T2735] bridge0: port 1(bridge_slave_0) entered forwarding state [ 132.662839][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 132.673000][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 132.682416][ T30] bridge0: port 2(bridge_slave_1) entered blocking state [ 132.689571][ T30] bridge0: port 2(bridge_slave_1) entered forwarding state [ 132.706564][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 132.735194][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 132.745049][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 132.755096][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 132.765795][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 132.779222][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 132.789528][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 132.812842][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 132.822190][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 132.837839][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 132.846766][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 132.862839][T11449] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 132.897723][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 132.906651][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 132.927306][T11449] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 132.967835][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 132.977613][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 133.016254][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 133.025483][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 133.038292][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 133.046813][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 133.064470][T11449] device veth0_vlan entered promiscuous mode [ 133.087140][T11449] device veth1_vlan entered promiscuous mode [ 133.133485][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 133.143121][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 133.152425][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 133.161418][ T3551] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 133.178580][T11449] device veth0_macvtap entered promiscuous mode [ 133.193937][T11449] device veth1_macvtap entered promiscuous mode [ 133.229164][T11449] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 133.236793][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 133.246530][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 133.255704][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 133.264983][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 133.281889][T11449] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 133.289731][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 133.299317][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 133.543372][ C0] ===================================================== [ 133.550368][ C0] BUG: KMSAN: use-after-free in find_match+0x317/0x1480 [ 133.557341][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.6.0-rc2-syzkaller #0 [ 133.565380][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.575524][ C0] Call Trace: [ 133.578828][ C0] dump_stack+0x1c9/0x220 [ 133.583158][ C0] kmsan_report+0xf7/0x1e0 [ 133.587585][ C0] __msan_warning+0x58/0xa0 [ 133.592091][ C0] find_match+0x317/0x1480 [ 133.596523][ C0] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 133.602673][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 133.607896][ C0] __find_rr_leaf+0x3f9/0x1160 [ 133.612680][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 133.617801][ C0] fib6_table_lookup+0x586/0x1420 [ 133.622869][ C0] ip6_pol_route+0x203/0x2960 [ 133.627593][ C0] ip6_pol_route_input+0x123/0x140 [ 133.632720][ C0] fib6_rule_lookup+0x38f/0xa10 [ 133.637568][ C0] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 133.643118][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 133.648316][ C0] ip6_route_input+0xb9d/0xcf0 [ 133.653193][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 133.658405][ C0] ip6_rcv_finish_core+0x1f9/0x470 [ 133.663521][ C0] ipv6_rcv+0x628/0x710 [ 133.667680][ C0] ? local_bh_enable+0x40/0x40 [ 133.672571][ C0] process_backlog+0xa41/0x1410 [ 133.677437][ C0] ? __list_add_valid+0xb8/0x420 [ 133.682376][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 133.687499][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 133.692693][ C0] ? rps_trigger_softirq+0x2e0/0x2e0 [ 133.697981][ C0] net_rx_action+0x786/0x1aa0 [ 133.702678][ C0] ? net_tx_action+0xc30/0xc30 [ 133.707446][ C0] __do_softirq+0x311/0x83d [ 133.711965][ C0] ? ksoftirqd_should_run+0x30/0x30 [ 133.717164][ C0] ? takeover_tasklets+0x8f0/0x8f0 [ 133.722361][ C0] run_ksoftirqd+0x25/0x40 [ 133.726775][ C0] smpboot_thread_fn+0x493/0x980 [ 133.731738][ C0] kthread+0x4b5/0x4f0 [ 133.735813][ C0] ? cpu_report_death+0x180/0x180 [ 133.741719][ C0] ? kthread_blkcg+0xf0/0xf0 [ 133.746315][ C0] ret_from_fork+0x35/0x40 [ 133.750735][ C0] [ 133.753052][ C0] Uninit was created at: [ 133.757299][ C0] kmsan_internal_poison_shadow+0x66/0xd0 [ 133.763020][ C0] kmsan_slab_free+0x6e/0xb0 [ 133.767598][ C0] kfree+0x565/0x30a0 [ 133.771584][ C0] netdev_name_node_alt_destroy+0x587/0x690 [ 133.777481][ C0] rtnl_linkprop+0x939/0xc00 [ 133.782078][ C0] rtnl_dellinkprop+0x9d/0xb0 [ 133.786747][ C0] rtnetlink_rcv_msg+0x1153/0x1570 [ 133.791940][ C0] netlink_rcv_skb+0x451/0x650 [ 133.796708][ C0] rtnetlink_rcv+0x50/0x60 [ 133.801224][ C0] netlink_unicast+0xf9e/0x1100 [ 133.806074][ C0] netlink_sendmsg+0x1246/0x14d0 [ 133.811002][ C0] ____sys_sendmsg+0x12b6/0x1350 [ 133.815935][ C0] __sys_sendmsg+0x451/0x5f0 [ 133.820521][ C0] __ia32_compat_sys_sendmsg+0xed/0x130 [ 133.826059][ C0] do_fast_syscall_32+0x3c7/0x6e0 [ 133.831088][ C0] entry_SYSENTER_compat+0x68/0x77 [ 133.836190][ C0] ===================================================== [ 133.843110][ C0] Disabling lock debugging due to kernel taint [ 133.849252][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 133.849255][ C1] ===================================================== [ 133.849284][ C1] BUG: KMSAN: use-after-free in find_match+0x317/0x1480 [ 133.855857][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 133.879147][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.889190][ C0] Call Trace: [ 133.892480][ C0] dump_stack+0x1c9/0x220 [ 133.896816][ C0] panic+0x3d5/0xc3e [ 133.900731][ C0] kmsan_report+0x1df/0x1e0 [ 133.905233][ C0] __msan_warning+0x58/0xa0 [ 133.909749][ C0] find_match+0x317/0x1480 [ 133.914184][ C0] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 133.920347][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 133.925568][ C0] __find_rr_leaf+0x3f9/0x1160 [ 133.930353][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 133.935459][ C0] fib6_table_lookup+0x586/0x1420 [ 133.940521][ C0] ip6_pol_route+0x203/0x2960 [ 133.945222][ C0] ip6_pol_route_input+0x123/0x140 [ 133.950331][ C0] fib6_rule_lookup+0x38f/0xa10 [ 133.955172][ C0] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 133.960733][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 133.965946][ C0] ip6_route_input+0xb9d/0xcf0 [ 133.970745][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 133.975961][ C0] ip6_rcv_finish_core+0x1f9/0x470 [ 133.981076][ C0] ipv6_rcv+0x628/0x710 [ 133.985245][ C0] ? local_bh_enable+0x40/0x40 [ 133.990017][ C0] process_backlog+0xa41/0x1410 [ 133.994862][ C0] ? __list_add_valid+0xb8/0x420 [ 134.000167][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 134.005275][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 134.010576][ C0] ? rps_trigger_softirq+0x2e0/0x2e0 [ 134.015865][ C0] net_rx_action+0x786/0x1aa0 [ 134.020558][ C0] ? net_tx_action+0xc30/0xc30 [ 134.025335][ C0] __do_softirq+0x311/0x83d [ 134.029850][ C0] ? ksoftirqd_should_run+0x30/0x30 [ 134.035039][ C0] ? takeover_tasklets+0x8f0/0x8f0 [ 134.040154][ C0] run_ksoftirqd+0x25/0x40 [ 134.044591][ C0] smpboot_thread_fn+0x493/0x980 [ 134.049532][ C0] kthread+0x4b5/0x4f0 [ 134.053600][ C0] ? cpu_report_death+0x180/0x180 [ 134.058637][ C0] ? kthread_blkcg+0xf0/0xf0 [ 134.063233][ C0] ret_from_fork+0x35/0x40 [ 134.067666][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 134.077210][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 134.087274][ C1] Call Trace: [ 134.090594][ C1] dump_stack+0x1c9/0x220 [ 134.094925][ C1] kmsan_report+0xf7/0x1e0 [ 134.099347][ C1] __msan_warning+0x58/0xa0 [ 134.103849][ C1] find_match+0x317/0x1480 [ 134.108281][ C1] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 134.114431][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 134.119660][ C1] __find_rr_leaf+0x3f9/0x1160 [ 134.124442][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 134.129682][ C1] fib6_table_lookup+0x586/0x1420 [ 134.134749][ C1] ip6_pol_route+0x203/0x2960 [ 134.139426][ C1] ? nf_ip6_checksum+0x501/0x610 [ 134.144360][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 134.149591][ C1] ip6_pol_route_input+0x123/0x140 [ 134.154710][ C1] fib6_rule_lookup+0x38f/0xa10 [ 134.159596][ C1] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 134.165175][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 134.170380][ C1] ip6_route_input+0xb9d/0xcf0 [ 134.175259][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 134.180470][ C1] ip6_rcv_finish_core+0x1f9/0x470 [ 134.185585][ C1] ipv6_rcv+0x628/0x710 [ 134.190016][ C1] ? local_bh_enable+0x40/0x40 [ 134.194970][ C1] process_backlog+0xa41/0x1410 [ 134.199837][ C1] ? __list_add_valid+0xb8/0x420 [ 134.204785][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 134.209912][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 134.215124][ C1] ? rps_trigger_softirq+0x2e0/0x2e0 [ 134.220418][ C1] net_rx_action+0x786/0x1aa0 [ 134.225124][ C1] ? net_tx_action+0xc30/0xc30 [ 134.229892][ C1] __do_softirq+0x311/0x83d [ 134.234415][ C1] ? ksoftirqd_should_run+0x30/0x30 [ 134.239602][ C1] ? takeover_tasklets+0x8f0/0x8f0 [ 134.244713][ C1] run_ksoftirqd+0x25/0x40 [ 134.249143][ C1] smpboot_thread_fn+0x493/0x980 [ 134.254114][ C1] kthread+0x4b5/0x4f0 [ 134.258177][ C1] ? cpu_report_death+0x180/0x180 [ 134.263207][ C1] ? kthread_blkcg+0xf0/0xf0 [ 134.267796][ C1] ret_from_fork+0x35/0x40 [ 134.272208][ C1] [ 134.274524][ C1] Uninit was created at: [ 134.278790][ C1] kmsan_internal_poison_shadow+0x66/0xd0 [ 134.284527][ C1] kmsan_slab_free+0x6e/0xb0 [ 134.289126][ C1] kfree+0x565/0x30a0 [ 134.293104][ C1] netdev_name_node_alt_destroy+0x587/0x690 [ 134.298986][ C1] rtnl_linkprop+0x939/0xc00 [ 134.303573][ C1] rtnl_dellinkprop+0x9d/0xb0 [ 134.308255][ C1] rtnetlink_rcv_msg+0x1153/0x1570 [ 134.313356][ C1] netlink_rcv_skb+0x451/0x650 [ 134.318103][ C1] rtnetlink_rcv+0x50/0x60 [ 134.322504][ C1] netlink_unicast+0xf9e/0x1100 [ 134.327351][ C1] netlink_sendmsg+0x1246/0x14d0 [ 134.332288][ C1] ____sys_sendmsg+0x12b6/0x1350 [ 134.337220][ C1] __sys_sendmsg+0x451/0x5f0 [ 134.341811][ C1] __ia32_compat_sys_sendmsg+0xed/0x130 [ 134.347354][ C1] do_fast_syscall_32+0x3c7/0x6e0 [ 134.352481][ C1] entry_SYSENTER_compat+0x68/0x77 [ 134.357599][ C1] ===================================================== [ 135.288394][ C0] Shutting down cpus with NMI [ 135.306812][ C0] Kernel Offset: 0x19e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 135.319352][ C0] Rebooting in 86400 seconds..