Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts.
syzkaller login: [ 81.991507][ T9030] IPVS: ftp: loaded support on port[0] = 21
[ 82.039186][ T9030] chnl_net:caif_netlink_parms(): no params data found
[ 82.076225][ T9030] bridge0: port 1(bridge_slave_0) entered blocking state
[ 82.084017][ T9030] bridge0: port 1(bridge_slave_0) entered disabled state
[ 82.092886][ T9030] device bridge_slave_0 entered promiscuous mode
[ 82.101941][ T9030] bridge0: port 2(bridge_slave_1) entered blocking state
[ 82.109564][ T9030] bridge0: port 2(bridge_slave_1) entered disabled state
[ 82.117420][ T9030] device bridge_slave_1 entered promiscuous mode
[ 82.134329][ T9030] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 82.145749][ T9030] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 82.165993][ T9030] team0: Port device team_slave_0 added
[ 82.173274][ T9030] team0: Port device team_slave_1 added
[ 82.187527][ T9030] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 82.194838][ T9030] 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.
[ 82.221173][ T9030] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 82.233754][ T9030] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 82.241074][ T9030] 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.
[ 82.267126][ T9030] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 82.348879][ T9030] device hsr_slave_0 entered promiscuous mode
[ 82.386342][ T9030] device hsr_slave_1 entered promiscuous mode
[ 82.483944][ T9030] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 82.539148][ T9030] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 82.599526][ T9030] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 82.668819][ T9030] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 82.721112][ T9030] bridge0: port 2(bridge_slave_1) entered blocking state
[ 82.728486][ T9030] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 82.736812][ T9030] bridge0: port 1(bridge_slave_0) entered blocking state
[ 82.743895][ T9030] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 82.788719][ T9030] 8021q: adding VLAN 0 to HW filter on device bond0
[ 82.802320][ T3142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 82.814029][ T3142] bridge0: port 1(bridge_slave_0) entered disabled state
[ 82.822833][ T3142] bridge0: port 2(bridge_slave_1) entered disabled state
[ 82.831489][ T3142] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 82.844508][ T9030] 8021q: adding VLAN 0 to HW filter on device team0
[ 82.855608][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 82.864267][ T2690] bridge0: port 1(bridge_slave_0) entered blocking state
[ 82.871405][ T2690] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 82.883745][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 82.892760][ T3126] bridge0: port 2(bridge_slave_1) entered blocking state
[ 82.899930][ T3126] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 82.927405][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 82.937299][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 82.946503][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 82.954777][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 82.964090][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 82.974783][ T9030] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 82.991906][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 83.000107][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 83.012665][ T9030] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 83.033331][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 83.051823][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 83.060666][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 83.070054][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 83.078804][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 83.089560][ T9030] device veth0_vlan entered promiscuous mode
[ 83.101675][ T9030] device veth1_vlan entered promiscuous mode
[ 83.122934][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 83.131926][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 83.140320][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 83.150120][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 83.161453][ T9030] device veth0_macvtap entered promiscuous mode
[ 83.171202][ T9030] device veth1_macvtap entered promiscuous mode
[ 83.187936][ T9030] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 83.195486][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 83.204670][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 83.212802][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 83.221665][ T3126] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 83.233144][ T9030] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 83.240919][ T3142] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 83.250419][ T3142] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
executing program
executing program
[ 83.446467][ C0] ==================================================================
[ 83.454751][ C0] BUG: KASAN: use-after-free in find_match+0xb5/0xa10
[ 83.461527][ C0] Read of size 8 at addr ffff8880a95da320 by task kworker/0:2/2690
[ 83.469406][ C0]
[ 83.471777][ C0] CPU: 0 PID: 2690 Comm: kworker/0:2 Not tainted 5.6.0-rc2-syzkaller #0
[ 83.480232][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 83.490398][ C0] Workqueue: ipv6_addrconf addrconf_dad_work
[ 83.496566][ C0] Call Trace:
[ 83.499940][ C0]
[ 83.502807][ C0] dump_stack+0x1fb/0x318
[ 83.507508][ C0] print_address_description+0x74/0x5c0
[ 83.513093][ C0] ? vprintk_default+0x28/0x30
[ 83.517879][ C0] ? vprintk_func+0x158/0x170
[ 83.522611][ C0] ? printk+0x62/0x8d
[ 83.526617][ C0] __kasan_report+0x149/0x1c0
[ 83.531478][ C0] ? find_match+0xb5/0xa10
[ 83.535895][ C0] kasan_report+0x26/0x50
[ 83.540314][ C0] __asan_report_load8_noabort+0x14/0x20
[ 83.545950][ C0] find_match+0xb5/0xa10
[ 83.550208][ C0] __find_rr_leaf+0x1f6/0xb50
[ 83.554893][ C0] fib6_table_lookup+0x44f/0xb00
[ 83.559855][ C0] ip6_pol_route+0x187/0x1910
[ 83.564596][ C0] ? __flow_hash_from_keys+0x491/0x910
[ 83.570086][ C0] ip6_pol_route_input+0x54/0x80
[ 83.575387][ C0] ? ip6_route_input_lookup+0xd0/0xd0
[ 83.580751][ C0] fib6_rule_lookup+0x1e3/0x640
[ 83.585743][ C0] ip6_route_input+0x792/0xb20
[ 83.590575][ C0] ip6_rcv_finish_core+0x1f5/0x400
[ 83.595704][ C0] ip6_rcv_finish+0x138/0x260
[ 83.600376][ C0] ? local_bh_enable+0x30/0x30
[ 83.605142][ C0] ip_sabotage_in+0x1a7/0x230
[ 83.609843][ C0] ? br_nf_post_routing+0xea0/0xea0
[ 83.615125][ C0] nf_hook_slow+0xbf/0x200
[ 83.619553][ C0] nf_hook+0x206/0x2e0
[ 83.623631][ C0] ? local_bh_enable+0x30/0x30
[ 83.628399][ C0] ? local_bh_enable+0x30/0x30
[ 83.633182][ C0] ipv6_rcv+0x8b/0xe0
[ 83.637189][ C0] ? ip6_rcv_finish_core+0x400/0x400
[ 83.642608][ C0] __netif_receive_skb+0x136/0x370
[ 83.647730][ C0] netif_receive_skb_internal+0x203/0x2c0
[ 83.653588][ C0] netif_receive_skb+0x1d/0x30
[ 83.658363][ C0] br_pass_frame_up+0x421/0x4b0
[ 83.663214][ C0] br_handle_frame_finish+0xf6e/0x1390
[ 83.668801][ C0] ? nf_hook_slow+0x175/0x200
[ 83.673478][ C0] br_nf_hook_thresh+0x321/0x3a0
[ 83.678421][ C0] ? brport_get_ownership+0x80/0x80
[ 83.683617][ C0] br_nf_pre_routing_finish_ipv6+0x8d7/0xb30
[ 83.689668][ C0] ? brport_get_ownership+0x80/0x80
[ 83.694906][ C0] br_nf_pre_routing_ipv6+0x2ab/0x350
[ 83.700308][ C0] br_nf_pre_routing+0x6dc/0x13d0
[ 83.705331][ C0] ? brnf_device_event+0x1f0/0x1f0
[ 83.710445][ C0] br_handle_frame+0x7cd/0xeb0
[ 83.715213][ C0] ? brport_get_ownership+0x80/0x80
[ 83.720410][ C0] ? br_pass_frame_up+0x4b0/0x4b0
[ 83.725555][ C0] __netif_receive_skb_core+0x1b6b/0x36b0
[ 83.731305][ C0] __netif_receive_skb+0xc5/0x370
[ 83.736358][ C0] process_backlog+0x4e8/0x980
[ 83.741198][ C0] net_rx_action+0x5ef/0x10c0
[ 83.746006][ C0] __do_softirq+0x283/0x7bd
[ 83.750584][ C0] ? do_softirq_own_stack+0x2a/0x40
[ 83.755785][ C0] do_softirq_own_stack+0x2a/0x40
[ 83.760797][ C0]
[ 83.763756][ C0] do_softirq+0xfd/0x190
[ 83.768003][ C0] ? local_bh_enable+0x9/0x30
[ 83.772672][ C0] __local_bh_enable_ip+0x194/0x240
[ 83.777869][ C0] local_bh_enable+0x1f/0x30
[ 83.782554][ C0] ip6_finish_output2+0x10ca/0x13e0
[ 83.787779][ C0] __ip6_finish_output+0x693/0x8c0
[ 83.792924][ C0] ip6_finish_output+0x52/0x1e0
[ 83.797763][ C0] ? ip6_output+0x2ad/0x3c0
[ 83.802333][ C0] ip6_output+0x2c2/0x3c0
[ 83.806698][ C0] ndisc_send_skb+0xa33/0xe20
[ 83.811409][ C0] ndisc_send_ns+0x5c6/0x7b0
[ 83.816012][ C0] addrconf_dad_work+0xaa7/0x1c20
[ 83.821146][ C0] process_one_work+0x7f5/0x10f0
[ 83.826211][ C0] worker_thread+0xbbc/0x1630
[ 83.830917][ C0] kthread+0x332/0x350
[ 83.835253][ C0] ? rcu_lock_release+0x30/0x30
[ 83.840237][ C0] ? kthread_blkcg+0xe0/0xe0
[ 83.845053][ C0] ret_from_fork+0x24/0x30
[ 83.849519][ C0]
[ 83.851836][ C0] Allocated by task 9030:
[ 83.856164][ C0] __kasan_kmalloc+0x118/0x1c0
[ 83.861020][ C0] kasan_kmalloc+0x9/0x10
[ 83.865364][ C0] __kmalloc_node+0x4d/0x60
[ 83.869876][ C0] kvmalloc_node+0x85/0x110
[ 83.874474][ C0] alloc_netdev_mqs+0x8e/0xd40
[ 83.879221][ C0] vti6_init_net+0x112/0x320
[ 83.883801][ C0] ops_init+0x355/0x430
[ 83.887939][ C0] setup_net+0x1eb/0x7f0
[ 83.892357][ C0] copy_net_ns+0x334/0x540
[ 83.896860][ C0] create_new_namespaces+0x4d7/0x9c0
[ 83.902128][ C0] unshare_nsproxy_namespaces+0x12a/0x190
[ 83.907846][ C0] ksys_unshare+0x478/0xa00
[ 83.912342][ C0] __x64_sys_unshare+0x38/0x40
[ 83.917108][ C0] do_syscall_64+0xf7/0x1c0
[ 83.921733][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 83.927709][ C0]
[ 83.930441][ C0] Freed by task 9035:
[ 83.934446][ C0] __kasan_slab_free+0x12e/0x1e0
[ 83.939395][ C0] kasan_slab_free+0xe/0x10
[ 83.943978][ C0] kfree+0x10d/0x220
[ 83.947989][ C0] netdev_name_node_alt_destroy+0x35c/0x380
[ 83.953882][ C0] rtnl_linkprop+0x42d/0x680
[ 83.958590][ C0] rtnl_dellinkprop+0x2a/0x40
[ 83.963370][ C0] rtnetlink_rcv_msg+0x889/0xd40
[ 83.968333][ C0] netlink_rcv_skb+0x19e/0x3e0
[ 83.973091][ C0] rtnetlink_rcv+0x1c/0x20
[ 83.977594][ C0] netlink_unicast+0x766/0x920
[ 83.982390][ C0] netlink_sendmsg+0xa2b/0xd40
[ 83.987151][ C0] ____sys_sendmsg+0x4f7/0x7f0
[ 83.991917][ C0] __sys_sendmsg+0x1ed/0x290
[ 83.996679][ C0] __x64_sys_sendmsg+0x7f/0x90
[ 84.001563][ C0] do_syscall_64+0xf7/0x1c0
[ 84.006062][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 84.011948][ C0]
[ 84.014299][ C0] The buggy address belongs to the object at ffff8880a95da000
[ 84.014299][ C0] which belongs to the cache kmalloc-4k of size 4096
[ 84.030490][ C0] The buggy address is located 800 bytes inside of
[ 84.030490][ C0] 4096-byte region [ffff8880a95da000, ffff8880a95db000)
[ 84.044071][ C0] The buggy address belongs to the page:
[ 84.049713][ C0] page:ffffea0002a57680 refcount:1 mapcount:0 mapping:ffff8880aa402000 index:0x0 compound_mapcount: 0
[ 84.060787][ C0] flags: 0xfffe0000010200(slab|head)
[ 84.066170][ C0] raw: 00fffe0000010200 ffffea0002476308 ffffea0002516c08 ffff8880aa402000
[ 84.074765][ C0] raw: 0000000000000000 ffff8880a95da000 0000000100000001 0000000000000000
[ 84.083562][ C0] page dumped because: kasan: bad access detected
[ 84.089990][ C0]
[ 84.092310][ C0] Memory state around the buggy address:
[ 84.099474][ C0] ffff8880a95da200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 84.107730][ C0] ffff8880a95da280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 84.115822][ C0] >ffff8880a95da300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 84.124163][ C0] ^
[ 84.129291][ C0] ffff8880a95da380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 84.137355][ C0] ffff8880a95da400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 84.145406][ C0] ==================================================================
[ 84.153557][ C0] Disabling lock debugging due to kernel taint
[ 84.159751][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 84.166353][ C0] CPU: 0 PID: 2690 Comm: kworker/0:2 Tainted: G B 5.6.0-rc2-syzkaller #0
[ 84.176168][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 84.186242][ C0] Workqueue: ipv6_addrconf addrconf_dad_work
[ 84.192222][ C0] Call Trace:
[ 84.195491][ C0]
[ 84.198340][ C0] dump_stack+0x1fb/0x318
[ 84.202777][ C0] panic+0x264/0x7a9
[ 84.206685][ C0] ? __kasan_report+0x193/0x1c0
[ 84.211530][ C0] ? trace_hardirqs_on+0x34/0x80
[ 84.216472][ C0] ? _raw_spin_unlock_irqrestore+0xa8/0xe0
[ 84.222410][ C0] __kasan_report+0x1b9/0x1c0
[ 84.227129][ C0] ? find_match+0xb5/0xa10
[ 84.231548][ C0] kasan_report+0x26/0x50
[ 84.235885][ C0] __asan_report_load8_noabort+0x14/0x20
[ 84.241516][ C0] find_match+0xb5/0xa10
[ 84.245769][ C0] __find_rr_leaf+0x1f6/0xb50
[ 84.250447][ C0] fib6_table_lookup+0x44f/0xb00
[ 84.255394][ C0] ip6_pol_route+0x187/0x1910
[ 84.260085][ C0] ? __flow_hash_from_keys+0x491/0x910
[ 84.265582][ C0] ip6_pol_route_input+0x54/0x80
[ 84.270515][ C0] ? ip6_route_input_lookup+0xd0/0xd0
[ 84.275940][ C0] fib6_rule_lookup+0x1e3/0x640
[ 84.280827][ C0] ip6_route_input+0x792/0xb20
[ 84.285695][ C0] ip6_rcv_finish_core+0x1f5/0x400
[ 84.290858][ C0] ip6_rcv_finish+0x138/0x260
[ 84.295532][ C0] ? local_bh_enable+0x30/0x30
[ 84.300335][ C0] ip_sabotage_in+0x1a7/0x230
[ 84.305002][ C0] ? br_nf_post_routing+0xea0/0xea0
[ 84.310452][ C0] nf_hook_slow+0xbf/0x200
[ 84.314877][ C0] nf_hook+0x206/0x2e0
[ 84.319061][ C0] ? local_bh_enable+0x30/0x30
[ 84.324026][ C0] ? local_bh_enable+0x30/0x30
[ 84.328791][ C0] ipv6_rcv+0x8b/0xe0
[ 84.332928][ C0] ? ip6_rcv_finish_core+0x400/0x400
[ 84.338332][ C0] __netif_receive_skb+0x136/0x370
[ 84.343514][ C0] netif_receive_skb_internal+0x203/0x2c0
[ 84.349280][ C0] netif_receive_skb+0x1d/0x30
[ 84.354151][ C0] br_pass_frame_up+0x421/0x4b0
[ 84.359002][ C0] br_handle_frame_finish+0xf6e/0x1390
[ 84.364475][ C0] ? nf_hook_slow+0x175/0x200
[ 84.369851][ C0] br_nf_hook_thresh+0x321/0x3a0
[ 84.374797][ C0] ? brport_get_ownership+0x80/0x80
[ 84.379996][ C0] br_nf_pre_routing_finish_ipv6+0x8d7/0xb30
[ 84.386034][ C0] ? brport_get_ownership+0x80/0x80
[ 84.391285][ C0] br_nf_pre_routing_ipv6+0x2ab/0x350
[ 84.396834][ C0] br_nf_pre_routing+0x6dc/0x13d0
[ 84.401875][ C0] ? brnf_device_event+0x1f0/0x1f0
[ 84.406989][ C0] br_handle_frame+0x7cd/0xeb0
[ 84.411938][ C0] ? brport_get_ownership+0x80/0x80
[ 84.417141][ C0] ? br_pass_frame_up+0x4b0/0x4b0
[ 84.422198][ C0] __netif_receive_skb_core+0x1b6b/0x36b0
[ 84.428146][ C0] __netif_receive_skb+0xc5/0x370
[ 84.433172][ C0] process_backlog+0x4e8/0x980
[ 84.438032][ C0] net_rx_action+0x5ef/0x10c0
[ 84.442718][ C0] __do_softirq+0x283/0x7bd
[ 84.447308][ C0] ? do_softirq_own_stack+0x2a/0x40
[ 84.452595][ C0] do_softirq_own_stack+0x2a/0x40
[ 84.457604][ C0]
[ 84.460546][ C0] do_softirq+0xfd/0x190
[ 84.464811][ C0] ? local_bh_enable+0x9/0x30
[ 84.469485][ C0] __local_bh_enable_ip+0x194/0x240
[ 84.474679][ C0] local_bh_enable+0x1f/0x30
[ 84.479279][ C0] ip6_finish_output2+0x10ca/0x13e0
[ 84.484555][ C0] __ip6_finish_output+0x693/0x8c0
[ 84.489665][ C0] ip6_finish_output+0x52/0x1e0
[ 84.494525][ C0] ? ip6_output+0x2ad/0x3c0
[ 84.499019][ C0] ip6_output+0x2c2/0x3c0
[ 84.503340][ C0] ndisc_send_skb+0xa33/0xe20
[ 84.508029][ C0] ndisc_send_ns+0x5c6/0x7b0
[ 84.512681][ C0] addrconf_dad_work+0xaa7/0x1c20
[ 84.517835][ C0] process_one_work+0x7f5/0x10f0
[ 84.522769][ C0] worker_thread+0xbbc/0x1630
[ 84.527458][ C0] kthread+0x332/0x350
[ 84.531618][ C0] ? rcu_lock_release+0x30/0x30
[ 84.536459][ C0] ? kthread_blkcg+0xe0/0xe0
[ 84.541044][ C0] ret_from_fork+0x24/0x30
[ 84.546917][ C0] Kernel Offset: disabled
[ 84.551299][ C0] Rebooting in 86400 seconds..