Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts.
syzkaller login: [ 67.716935][ T8859] IPVS: ftp: loaded support on port[0] = 21
[ 67.758413][ T8859] chnl_net:caif_netlink_parms(): no params data found
[ 67.791159][ T8859] bridge0: port 1(bridge_slave_0) entered blocking state
[ 67.798821][ T8859] bridge0: port 1(bridge_slave_0) entered disabled state
[ 67.806817][ T8859] device bridge_slave_0 entered promiscuous mode
[ 67.814872][ T8859] bridge0: port 2(bridge_slave_1) entered blocking state
[ 67.822759][ T8859] bridge0: port 2(bridge_slave_1) entered disabled state
[ 67.830763][ T8859] device bridge_slave_1 entered promiscuous mode
[ 67.846281][ T8859] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 67.857477][ T8859] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 67.875378][ T8859] team0: Port device team_slave_0 added
[ 67.882344][ T8859] team0: Port device team_slave_1 added
[ 67.895479][ T8859] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 67.902585][ T8859] 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.
[ 67.928547][ T8859] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 67.941206][ T8859] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 67.948151][ T8859] 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.
[ 67.974250][ T8859] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 68.051425][ T8859] device hsr_slave_0 entered promiscuous mode
[ 68.089855][ T8859] device hsr_slave_1 entered promiscuous mode
[ 68.210073][ T8859] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 68.251756][ T8859] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 68.311673][ T8859] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 68.391302][ T8859] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 68.482245][ T8859] bridge0: port 2(bridge_slave_1) entered blocking state
[ 68.489570][ T8859] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 68.497204][ T8859] bridge0: port 1(bridge_slave_0) entered blocking state
[ 68.504299][ T8859] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 68.538465][ T8859] 8021q: adding VLAN 0 to HW filter on device bond0
[ 68.553783][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 68.564106][ T2862] bridge0: port 1(bridge_slave_0) entered disabled state
[ 68.572207][ T2862] bridge0: port 2(bridge_slave_1) entered disabled state
[ 68.580740][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 68.593513][ T8859] 8021q: adding VLAN 0 to HW filter on device team0
[ 68.604247][ T2883] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 68.612880][ T2883] bridge0: port 1(bridge_slave_0) entered blocking state
[ 68.620159][ T2883] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 68.630844][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 68.640542][ T2862] bridge0: port 2(bridge_slave_1) entered blocking state
[ 68.647603][ T2862] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 68.664909][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 68.674135][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 68.685779][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 68.696798][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 68.709631][ T8859] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 68.721609][ T8859] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 68.729821][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 68.748069][ T8859] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 68.756321][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 68.764487][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 68.779982][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 68.790699][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 68.807160][ T8859] device veth0_vlan entered promiscuous mode
[ 68.814686][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 68.823228][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 68.832417][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 68.842659][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 68.854142][ T8859] device veth1_vlan entered promiscuous mode
[ 68.872099][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 68.880348][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 68.888324][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 68.896962][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 68.906941][ T8859] device veth0_macvtap entered promiscuous mode
[ 68.916594][ T8859] device veth1_macvtap entered promiscuous mode
[ 68.931437][ T8859] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 68.939070][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 68.949054][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 68.957023][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 68.965559][ T2862] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 68.976832][ T8859] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 68.985323][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 68.994515][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
executing program
[ 69.169471][ C0] ==================================================================
[ 69.177932][ C0] BUG: KASAN: use-after-free in find_match+0xb5/0xa10
[ 69.184696][ C0] Read of size 8 at addr ffff888094f32320 by task kworker/0:50/2879
[ 69.192661][ C0]
[ 69.194975][ C0] CPU: 0 PID: 2879 Comm: kworker/0:50 Not tainted 5.6.0-rc2-syzkaller #0
[ 69.203545][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 69.213606][ C0] Workqueue: ipv6_addrconf addrconf_dad_work
[ 69.219582][ C0] Call Trace:
[ 69.222853][ C0]
[ 69.225761][ C0] dump_stack+0x1fb/0x318
[ 69.230102][ C0] print_address_description+0x74/0x5c0
[ 69.235650][ C0] ? vprintk_func+0x158/0x170
[ 69.240313][ C0] ? printk+0x62/0x8d
[ 69.244387][ C0] ? vprintk_emit+0x2d4/0x3a0
[ 69.249082][ C0] __kasan_report+0x149/0x1c0
[ 69.253865][ C0] ? find_match+0xb5/0xa10
[ 69.258268][ C0] kasan_report+0x26/0x50
[ 69.262581][ C0] __asan_report_load8_noabort+0x14/0x20
[ 69.268234][ C0] find_match+0xb5/0xa10
[ 69.272507][ C0] __find_rr_leaf+0x1f6/0xb50
[ 69.277174][ C0] fib6_table_lookup+0x44f/0xb00
[ 69.282116][ C0] ip6_pol_route+0x187/0x1910
[ 69.286772][ C0] ? __flow_hash_from_keys+0x491/0x910
[ 69.292217][ C0] ip6_pol_route_input+0x54/0x80
[ 69.297139][ C0] ? ip6_route_input_lookup+0xd0/0xd0
[ 69.302505][ C0] fib6_rule_lookup+0x1e3/0x640
[ 69.307349][ C0] ip6_route_input+0x792/0xb20
[ 69.312115][ C0] ip6_rcv_finish_core+0x1f5/0x400
[ 69.317212][ C0] ip6_rcv_finish+0x138/0x260
[ 69.321869][ C0] ipv6_rcv+0xb0/0xe0
[ 69.325838][ C0] ? ip6_rcv_finish_core+0x400/0x400
[ 69.331100][ C0] __netif_receive_skb+0x136/0x370
[ 69.336215][ C0] process_backlog+0x4e8/0x980
[ 69.340966][ C0] net_rx_action+0x5ef/0x10c0
[ 69.345663][ C0] __do_softirq+0x283/0x7bd
[ 69.350171][ C0] ? do_softirq_own_stack+0x2a/0x40
[ 69.355370][ C0] do_softirq_own_stack+0x2a/0x40
[ 69.360376][ C0]
[ 69.363308][ C0] do_softirq+0xfd/0x190
[ 69.367527][ C0] ? local_bh_enable+0x9/0x30
[ 69.372180][ C0] __local_bh_enable_ip+0x194/0x240
[ 69.377356][ C0] local_bh_enable+0x1f/0x30
[ 69.381997][ C0] ip6_finish_output2+0x10ca/0x13e0
[ 69.387223][ C0] __ip6_finish_output+0x693/0x8c0
[ 69.392334][ C0] ip6_finish_output+0x52/0x1e0
[ 69.397229][ C0] ? ip6_output+0x2ad/0x3c0
[ 69.401716][ C0] ip6_output+0x2c2/0x3c0
[ 69.406026][ C0] ndisc_send_skb+0xa33/0xe20
[ 69.410726][ C0] ndisc_send_ns+0x5c6/0x7b0
[ 69.415334][ C0] addrconf_dad_work+0xaa7/0x1c20
[ 69.420347][ C0] process_one_work+0x7f5/0x10f0
[ 69.425275][ C0] worker_thread+0xbbc/0x1630
[ 69.429989][ C0] kthread+0x332/0x350
[ 69.434056][ C0] ? rcu_lock_release+0x30/0x30
[ 69.438896][ C0] ? kthread_blkcg+0xe0/0xe0
[ 69.443479][ C0] ret_from_fork+0x24/0x30
[ 69.447888][ C0]
[ 69.450199][ C0] Allocated by task 8859:
[ 69.454507][ C0] __kasan_kmalloc+0x118/0x1c0
[ 69.459260][ C0] kasan_kmalloc+0x9/0x10
[ 69.463581][ C0] __kmalloc_node+0x4d/0x60
[ 69.468116][ C0] kvmalloc_node+0x85/0x110
[ 69.472602][ C0] alloc_netdev_mqs+0x8e/0xd40
[ 69.477382][ C0] vti6_init_net+0x112/0x320
[ 69.481979][ C0] ops_init+0x355/0x430
[ 69.486116][ C0] setup_net+0x1eb/0x7f0
[ 69.490355][ C0] copy_net_ns+0x334/0x540
[ 69.494751][ C0] create_new_namespaces+0x4d7/0x9c0
[ 69.500882][ C0] unshare_nsproxy_namespaces+0x12a/0x190
[ 69.506577][ C0] ksys_unshare+0x478/0xa00
[ 69.511143][ C0] __x64_sys_unshare+0x38/0x40
[ 69.515883][ C0] do_syscall_64+0xf7/0x1c0
[ 69.520366][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 69.526283][ C0]
[ 69.528601][ C0] Freed by task 8859:
[ 69.532636][ C0] __kasan_slab_free+0x12e/0x1e0
[ 69.537701][ C0] kasan_slab_free+0xe/0x10
[ 69.542324][ C0] kfree+0x10d/0x220
[ 69.546210][ C0] netdev_name_node_alt_destroy+0x35c/0x380
[ 69.552095][ C0] rtnl_linkprop+0x42d/0x680
[ 69.556667][ C0] rtnl_dellinkprop+0x2a/0x40
[ 69.561351][ C0] rtnetlink_rcv_msg+0x889/0xd40
[ 69.566273][ C0] netlink_rcv_skb+0x19e/0x3e0
[ 69.571019][ C0] rtnetlink_rcv+0x1c/0x20
[ 69.575407][ C0] netlink_unicast+0x766/0x920
[ 69.580153][ C0] netlink_sendmsg+0xa2b/0xd40
[ 69.584888][ C0] ____sys_sendmsg+0x4f7/0x7f0
[ 69.589629][ C0] __sys_sendmsg+0x1ed/0x290
[ 69.594215][ C0] __x64_sys_sendmsg+0x7f/0x90
[ 69.598951][ C0] do_syscall_64+0xf7/0x1c0
[ 69.603429][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 69.609291][ C0]
[ 69.611602][ C0] The buggy address belongs to the object at ffff888094f32000
[ 69.611602][ C0] which belongs to the cache kmalloc-4k of size 4096
[ 69.625633][ C0] The buggy address is located 800 bytes inside of
[ 69.625633][ C0] 4096-byte region [ffff888094f32000, ffff888094f33000)
[ 69.639020][ C0] The buggy address belongs to the page:
[ 69.644690][ C0] page:ffffea000253cc80 refcount:1 mapcount:0 mapping:ffff8880aa402000 index:0x0 compound_mapcount: 0
[ 69.655601][ C0] flags: 0xfffe0000010200(slab|head)
[ 69.660869][ C0] raw: 00fffe0000010200 ffffea00025ca388 ffffea00025bd708 ffff8880aa402000
[ 69.669433][ C0] raw: 0000000000000000 ffff888094f32000 0000000100000001 0000000000000000
[ 69.678083][ C0] page dumped because: kasan: bad access detected
[ 69.684476][ C0]
[ 69.686790][ C0] Memory state around the buggy address:
[ 69.692404][ C0] ffff888094f32200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.700459][ C0] ffff888094f32280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.708492][ C0] >ffff888094f32300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.716537][ C0] ^
[ 69.721627][ C0] ffff888094f32380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.729668][ C0] ffff888094f32400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.737720][ C0] ==================================================================
[ 69.745761][ C0] Disabling lock debugging due to kernel taint
[ 69.751915][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 69.758480][ C0] CPU: 0 PID: 2879 Comm: kworker/0:50 Tainted: G B 5.6.0-rc2-syzkaller #0
[ 69.768253][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 69.778305][ C0] Workqueue: ipv6_addrconf addrconf_dad_work
[ 69.784267][ C0] Call Trace:
[ 69.787526][ C0]
[ 69.790372][ C0] dump_stack+0x1fb/0x318
[ 69.794674][ C0] panic+0x264/0x7a9
[ 69.798605][ C0] ? trace_hardirqs_on+0x34/0x80
[ 69.803532][ C0] ? __kasan_report+0x193/0x1c0
[ 69.808377][ C0] ? trace_hardirqs_on+0x34/0x80
[ 69.813304][ C0] __kasan_report+0x1b9/0x1c0
[ 69.817959][ C0] ? find_match+0xb5/0xa10
[ 69.822352][ C0] kasan_report+0x26/0x50
[ 69.826673][ C0] __asan_report_load8_noabort+0x14/0x20
[ 69.832298][ C0] find_match+0xb5/0xa10
[ 69.836576][ C0] __find_rr_leaf+0x1f6/0xb50
[ 69.841240][ C0] fib6_table_lookup+0x44f/0xb00
[ 69.846323][ C0] ip6_pol_route+0x187/0x1910
[ 69.850992][ C0] ? __flow_hash_from_keys+0x491/0x910
[ 69.856442][ C0] ip6_pol_route_input+0x54/0x80
[ 69.861363][ C0] ? ip6_route_input_lookup+0xd0/0xd0
[ 69.866714][ C0] fib6_rule_lookup+0x1e3/0x640
[ 69.871549][ C0] ip6_route_input+0x792/0xb20
[ 69.876300][ C0] ip6_rcv_finish_core+0x1f5/0x400
[ 69.881399][ C0] ip6_rcv_finish+0x138/0x260
[ 69.886062][ C0] ipv6_rcv+0xb0/0xe0
[ 69.890077][ C0] ? ip6_rcv_finish_core+0x400/0x400
[ 69.895370][ C0] __netif_receive_skb+0x136/0x370
[ 69.900466][ C0] process_backlog+0x4e8/0x980
[ 69.905211][ C0] net_rx_action+0x5ef/0x10c0
[ 69.909924][ C0] __do_softirq+0x283/0x7bd
[ 69.914419][ C0] ? do_softirq_own_stack+0x2a/0x40
[ 69.919601][ C0] do_softirq_own_stack+0x2a/0x40
[ 69.924598][ C0]
[ 69.927531][ C0] do_softirq+0xfd/0x190
[ 69.931839][ C0] ? local_bh_enable+0x9/0x30
[ 69.937055][ C0] __local_bh_enable_ip+0x194/0x240
[ 69.942260][ C0] local_bh_enable+0x1f/0x30
[ 69.946851][ C0] ip6_finish_output2+0x10ca/0x13e0
[ 69.952038][ C0] __ip6_finish_output+0x693/0x8c0
[ 69.957212][ C0] ip6_finish_output+0x52/0x1e0
[ 69.962075][ C0] ? ip6_output+0x2ad/0x3c0
[ 69.966616][ C0] ip6_output+0x2c2/0x3c0
[ 69.971043][ C0] ndisc_send_skb+0xa33/0xe20
[ 69.975708][ C0] ndisc_send_ns+0x5c6/0x7b0
[ 69.980292][ C0] addrconf_dad_work+0xaa7/0x1c20
[ 69.985309][ C0] process_one_work+0x7f5/0x10f0
[ 69.990238][ C0] worker_thread+0xbbc/0x1630
[ 69.994900][ C0] kthread+0x332/0x350
[ 69.998941][ C0] ? rcu_lock_release+0x30/0x30
[ 70.003769][ C0] ? kthread_blkcg+0xe0/0xe0
[ 70.008333][ C0] ret_from_fork+0x24/0x30
[ 70.014003][ C0] Kernel Offset: disabled
[ 70.018355][ C0] Rebooting in 86400 seconds..