Warning: Permanently added '10.128.1.17' (ECDSA) to the list of known hosts. syzkaller login: [ 127.348089][ T32] audit: type=1400 audit(1582472252.390:42): avc: denied { map } for pid=12271 comm="syz-executor206" path="/root/syz-executor206650245" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 127.397453][T12272] IPVS: ftp: loaded support on port[0] = 21 [ 127.482818][T12272] chnl_net:caif_netlink_parms(): no params data found [ 127.559556][T12272] bridge0: port 1(bridge_slave_0) entered blocking state [ 127.566783][T12272] bridge0: port 1(bridge_slave_0) entered disabled state [ 127.575313][T12272] device bridge_slave_0 entered promiscuous mode [ 127.586496][T12272] bridge0: port 2(bridge_slave_1) entered blocking state [ 127.593767][T12272] bridge0: port 2(bridge_slave_1) entered disabled state [ 127.601938][T12272] device bridge_slave_1 entered promiscuous mode [ 127.630698][T12272] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 127.644458][T12272] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 127.670754][T12272] team0: Port device team_slave_0 added [ 127.680288][T12272] team0: Port device team_slave_1 added [ 127.702821][T12272] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 127.709785][T12272] 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. [ 127.735820][T12272] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 127.749321][T12272] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 127.756508][T12272] 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. [ 127.782736][T12272] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 127.856023][T12272] device hsr_slave_0 entered promiscuous mode [ 127.902594][T12272] device hsr_slave_1 entered promiscuous mode [ 128.051766][ T32] audit: type=1400 audit(1582472253.090:43): avc: denied { create } for pid=12272 comm="syz-executor206" 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 [ 128.058317][T12272] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 128.076787][ T32] audit: type=1400 audit(1582472253.100:44): avc: denied { write } for pid=12272 comm="syz-executor206" 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 [ 128.108239][ T32] audit: type=1400 audit(1582472253.100:45): avc: denied { read } for pid=12272 comm="syz-executor206" 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 [ 128.146789][T12272] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 128.206682][T12272] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 128.256644][T12272] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 128.344998][T12272] bridge0: port 2(bridge_slave_1) entered blocking state [ 128.352100][T12272] bridge0: port 2(bridge_slave_1) entered forwarding state [ 128.359969][T12272] bridge0: port 1(bridge_slave_0) entered blocking state [ 128.367195][T12272] bridge0: port 1(bridge_slave_0) entered forwarding state [ 128.454835][T12272] 8021q: adding VLAN 0 to HW filter on device bond0 [ 128.476408][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 128.488274][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 128.497773][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 128.507896][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 128.525961][T12272] 8021q: adding VLAN 0 to HW filter on device team0 [ 128.539900][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 128.549528][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 128.558860][ T30] bridge0: port 1(bridge_slave_0) entered blocking state [ 128.566096][ T30] bridge0: port 1(bridge_slave_0) entered forwarding state [ 128.583293][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 128.592604][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 128.601340][T12278] bridge0: port 2(bridge_slave_1) entered blocking state [ 128.608532][T12278] bridge0: port 2(bridge_slave_1) entered forwarding state [ 128.625000][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 128.643599][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 128.672787][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 128.681775][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 128.691305][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 128.701144][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 128.710157][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 128.719089][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 128.729627][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 128.743037][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 128.752011][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 128.768810][T12272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 128.798267][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 128.807310][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 128.826576][T12272] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 128.861594][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 128.871813][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 128.905624][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 128.914410][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 128.929969][T12272] device veth0_vlan entered promiscuous mode [ 128.944340][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 128.953057][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 128.968262][T12272] device veth1_vlan entered promiscuous mode [ 129.007236][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 129.017606][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 129.026273][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 129.035155][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 129.049856][T12272] device veth0_macvtap entered promiscuous mode [ 129.064441][T12272] device veth1_macvtap entered promiscuous mode [ 129.094918][T12272] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 129.103042][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 129.111562][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 129.120133][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 129.129058][T12278] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 129.147743][T12272] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 129.155484][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 129.166013][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 129.362646][ C0] ===================================================== [ 129.369606][ C0] BUG: KMSAN: use-after-free in find_match+0x317/0x1480 [ 129.376516][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.6.0-rc2-syzkaller #0 [ 129.384557][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 129.394589][ C0] Call Trace: [ 129.397862][ C0] dump_stack+0x1c9/0x220 [ 129.402176][ C0] kmsan_report+0xf7/0x1e0 [ 129.406576][ C0] __msan_warning+0x58/0xa0 [ 129.411057][ C0] find_match+0x317/0x1480 [ 129.415465][ C0] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 129.421603][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.426794][ C0] __find_rr_leaf+0x3f9/0x1160 [ 129.431554][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 129.436644][ C0] fib6_table_lookup+0x586/0x1420 [ 129.441673][ C0] ip6_pol_route+0x203/0x2960 [ 129.446337][ C0] ? nf_ip6_checksum+0x501/0x610 [ 129.451351][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.456549][ C0] ip6_pol_route_input+0x123/0x140 [ 129.461740][ C0] fib6_rule_lookup+0x38f/0xa10 [ 129.466568][ C0] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 129.472106][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.477307][ C0] ip6_route_input+0xb9d/0xcf0 [ 129.482067][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.487252][ C0] ip6_rcv_finish_core+0x1f9/0x470 [ 129.492344][ C0] ipv6_rcv+0x628/0x710 [ 129.496489][ C0] ? local_bh_enable+0x40/0x40 [ 129.501235][ C0] process_backlog+0xa41/0x1410 [ 129.506067][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 129.511160][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.516356][ C0] ? rps_trigger_softirq+0x2e0/0x2e0 [ 129.521621][ C0] net_rx_action+0x786/0x1aa0 [ 129.526309][ C0] ? net_tx_action+0xc30/0xc30 [ 129.531057][ C0] __do_softirq+0x311/0x83d [ 129.535558][ C0] ? ksoftirqd_should_run+0x30/0x30 [ 129.540742][ C0] ? takeover_tasklets+0x8f0/0x8f0 [ 129.545831][ C0] run_ksoftirqd+0x25/0x40 [ 129.550226][ C0] smpboot_thread_fn+0x493/0x980 [ 129.555159][ C0] kthread+0x4b5/0x4f0 [ 129.559205][ C0] ? cpu_report_death+0x180/0x180 [ 129.564230][ C0] ? kthread_blkcg+0xf0/0xf0 [ 129.568801][ C0] ret_from_fork+0x35/0x40 [ 129.573200][ C0] [ 129.575504][ C0] Uninit was created at: [ 129.579724][ C0] kmsan_internal_poison_shadow+0x66/0xd0 [ 129.585417][ C0] kmsan_slab_free+0x6e/0xb0 [ 129.589977][ C0] kfree+0x565/0x30a0 [ 129.593935][ C0] netdev_name_node_alt_destroy+0x587/0x690 [ 129.599805][ C0] rtnl_linkprop+0x939/0xc00 [ 129.604367][ C0] rtnl_dellinkprop+0x9d/0xb0 [ 129.609023][ C0] rtnetlink_rcv_msg+0x1153/0x1570 [ 129.614109][ C0] netlink_rcv_skb+0x451/0x650 [ 129.618964][ C0] rtnetlink_rcv+0x50/0x60 [ 129.623366][ C0] netlink_unicast+0xf9e/0x1100 [ 129.628201][ C0] netlink_sendmsg+0x1246/0x14d0 [ 129.633140][ C0] ____sys_sendmsg+0x12b6/0x1350 [ 129.638064][ C0] __sys_sendmsg+0x451/0x5f0 [ 129.642664][ C0] __ia32_compat_sys_sendmsg+0xed/0x130 [ 129.648195][ C0] do_fast_syscall_32+0x3c7/0x6e0 [ 129.653203][ C0] entry_SYSENTER_compat+0x68/0x77 [ 129.658286][ C0] ===================================================== [ 129.665192][ C0] Disabling lock debugging due to kernel taint [ 129.671314][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 129.671316][ C1] ===================================================== [ 129.671335][ C1] BUG: KMSAN: use-after-free in find_match+0x317/0x1480 [ 129.677886][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 129.701131][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 129.711162][ C0] Call Trace: [ 129.714441][ C0] dump_stack+0x1c9/0x220 [ 129.718756][ C0] panic+0x3d5/0xc3e [ 129.722655][ C0] kmsan_report+0x1df/0x1e0 [ 129.727139][ C0] __msan_warning+0x58/0xa0 [ 129.731623][ C0] find_match+0x317/0x1480 [ 129.736031][ C0] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 129.742161][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.747355][ C0] __find_rr_leaf+0x3f9/0x1160 [ 129.752217][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 129.757311][ C0] fib6_table_lookup+0x586/0x1420 [ 129.762346][ C0] ip6_pol_route+0x203/0x2960 [ 129.767002][ C0] ? nf_ip6_checksum+0x501/0x610 [ 129.771940][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.777137][ C0] ip6_pol_route_input+0x123/0x140 [ 129.782242][ C0] fib6_rule_lookup+0x38f/0xa10 [ 129.787072][ C0] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 129.792607][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.797791][ C0] ip6_route_input+0xb9d/0xcf0 [ 129.802551][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.807736][ C0] ip6_rcv_finish_core+0x1f9/0x470 [ 129.812832][ C0] ipv6_rcv+0x628/0x710 [ 129.816977][ C0] ? local_bh_enable+0x40/0x40 [ 129.821724][ C0] process_backlog+0xa41/0x1410 [ 129.826560][ C0] ? kmsan_get_metadata+0x4f/0x180 [ 129.831655][ C0] ? kmsan_get_metadata+0x11d/0x180 [ 129.836835][ C0] ? rps_trigger_softirq+0x2e0/0x2e0 [ 129.842097][ C0] net_rx_action+0x786/0x1aa0 [ 129.846776][ C0] ? net_tx_action+0xc30/0xc30 [ 129.851522][ C0] __do_softirq+0x311/0x83d [ 129.856033][ C0] ? ksoftirqd_should_run+0x30/0x30 [ 129.861218][ C0] ? takeover_tasklets+0x8f0/0x8f0 [ 129.866309][ C0] run_ksoftirqd+0x25/0x40 [ 129.870703][ C0] smpboot_thread_fn+0x493/0x980 [ 129.875632][ C0] kthread+0x4b5/0x4f0 [ 129.879678][ C0] ? cpu_report_death+0x180/0x180 [ 129.884684][ C0] ? kthread_blkcg+0xf0/0xf0 [ 129.889250][ C0] ret_from_fork+0x35/0x40 [ 129.893665][ C1] CPU: 1 PID: 30 Comm: kworker/1:1 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 129.903192][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 129.913230][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 129.919181][ C1] Call Trace: [ 129.922443][ C1] [ 129.925277][ C1] dump_stack+0x1c9/0x220 [ 129.929590][ C1] kmsan_report+0xf7/0x1e0 [ 129.933991][ C1] __msan_warning+0x58/0xa0 [ 129.938475][ C1] find_match+0x317/0x1480 [ 129.942872][ C1] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 129.948921][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 129.954101][ C1] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 129.959884][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 129.965100][ C1] __find_rr_leaf+0x3f9/0x1160 [ 129.969873][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 129.974982][ C1] fib6_table_lookup+0x586/0x1420 [ 129.980034][ C1] ip6_pol_route+0x203/0x2960 [ 129.984732][ C1] ip6_pol_route_input+0x123/0x140 [ 129.989850][ C1] fib6_rule_lookup+0x38f/0xa10 [ 129.994695][ C1] ? ip6_route_input_lookup+0x1f0/0x1f0 [ 130.000234][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 130.005427][ C1] ip6_route_input+0xb9d/0xcf0 [ 130.010194][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 130.015393][ C1] ip6_rcv_finish_core+0x1f9/0x470 [ 130.020491][ C1] ipv6_rcv+0x628/0x710 [ 130.024641][ C1] ? local_bh_enable+0x40/0x40 [ 130.029389][ C1] process_backlog+0xa41/0x1410 [ 130.034240][ C1] ? kmsan_get_metadata+0x4f/0x180 [ 130.039332][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 130.044518][ C1] ? rps_trigger_softirq+0x2e0/0x2e0 [ 130.049784][ C1] net_rx_action+0x786/0x1aa0 [ 130.054548][ C1] ? net_tx_action+0xc30/0xc30 [ 130.059313][ C1] __do_softirq+0x311/0x83d [ 130.063806][ C1] do_softirq_own_stack+0x49/0x80 [ 130.068800][ C1] [ 130.071716][ C1] __local_bh_enable_ip+0x184/0x1d0 [ 130.076989][ C1] local_bh_enable+0x36/0x40 [ 130.081560][ C1] ip6_finish_output2+0x2113/0x2640 [ 130.086787][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 130.091978][ C1] __ip6_finish_output+0x824/0x8e0 [ 130.097089][ C1] ip6_finish_output+0x166/0x410 [ 130.102026][ C1] ip6_output+0x60a/0x770 [ 130.106345][ C1] ? ip6_output+0x770/0x770 [ 130.110824][ C1] ? ac6_seq_show+0x200/0x200 [ 130.115476][ C1] ndisc_send_skb+0x1047/0x15a0 [ 130.120324][ C1] ? ndisc_error_report+0x1a0/0x1a0 [ 130.125503][ C1] ndisc_send_ns+0xe38/0xe80 [ 130.130179][ C1] ? __queue_delayed_work+0x27f/0x450 [ 130.135535][ C1] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 130.141348][ C1] addrconf_dad_work+0xc0b/0x2aa0 [ 130.146349][ C1] ? kmsan_get_metadata+0x11d/0x180 [ 130.151553][ C1] ? ipv6_get_saddr_eval+0x1350/0x1350 [ 130.156982][ C1] process_one_work+0x1555/0x1f40 [ 130.162003][ C1] worker_thread+0xef6/0x2450 [ 130.166679][ C1] kthread+0x4b5/0x4f0 [ 130.170718][ C1] ? process_one_work+0x1f40/0x1f40 [ 130.175898][ C1] ? kthread_blkcg+0xf0/0xf0 [ 130.180467][ C1] ret_from_fork+0x35/0x40 [ 130.184866][ C1] [ 130.187166][ C1] Uninit was created at: [ 130.191383][ C1] kmsan_internal_poison_shadow+0x66/0xd0 [ 130.197071][ C1] kmsan_slab_free+0x6e/0xb0 [ 130.201647][ C1] kfree+0x565/0x30a0 [ 130.205706][ C1] netdev_name_node_alt_destroy+0x587/0x690 [ 130.211588][ C1] rtnl_linkprop+0x939/0xc00 [ 130.216164][ C1] rtnl_dellinkprop+0x9d/0xb0 [ 130.220821][ C1] rtnetlink_rcv_msg+0x1153/0x1570 [ 130.225911][ C1] netlink_rcv_skb+0x451/0x650 [ 130.230653][ C1] rtnetlink_rcv+0x50/0x60 [ 130.235042][ C1] netlink_unicast+0xf9e/0x1100 [ 130.239868][ C1] netlink_sendmsg+0x1246/0x14d0 [ 130.244791][ C1] ____sys_sendmsg+0x12b6/0x1350 [ 130.249706][ C1] __sys_sendmsg+0x451/0x5f0 [ 130.254284][ C1] __ia32_compat_sys_sendmsg+0xed/0x130 [ 130.259820][ C1] do_fast_syscall_32+0x3c7/0x6e0 [ 130.264825][ C1] entry_SYSENTER_compat+0x68/0x77 [ 130.269912][ C1] ===================================================== [ 131.126497][ C0] Shutting down cpus with NMI [ 131.145004][ C0] Kernel Offset: 0xec00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 131.156548][ C0] Rebooting in 86400 seconds..