Warning: Permanently added '10.128.1.75' (ECDSA) to the list of known hosts. 2021/04/30 10:52:54 parsed 1 programs 2021/04/30 10:53:02 executed programs: 0 syzkaller login: [ 297.816053][ T8412] chnl_net:caif_netlink_parms(): no params data found [ 297.867535][ T8412] bridge0: port 1(bridge_slave_0) entered blocking state [ 297.874950][ T8412] bridge0: port 1(bridge_slave_0) entered disabled state [ 297.883306][ T8412] device bridge_slave_0 entered promiscuous mode [ 297.891617][ T8412] bridge0: port 2(bridge_slave_1) entered blocking state [ 297.898709][ T8412] bridge0: port 2(bridge_slave_1) entered disabled state [ 297.906134][ T8412] device bridge_slave_1 entered promiscuous mode [ 297.918130][ T8412] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 297.928354][ T8412] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 297.941547][ T8412] team0: Port device team_slave_0 added [ 297.948661][ T8412] team0: Port device team_slave_1 added [ 297.958130][ T8412] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 297.965090][ T8412] 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. [ 297.991003][ T8412] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 298.002171][ T8412] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 298.009350][ T8412] 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. [ 298.036655][ T8412] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 298.054668][ T8412] device hsr_slave_0 entered promiscuous mode [ 298.061368][ T8412] device hsr_slave_1 entered promiscuous mode [ 298.092394][ T8412] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 298.100405][ T8412] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 298.108644][ T8412] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 298.116415][ T8412] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 298.128945][ T8412] bridge0: port 2(bridge_slave_1) entered blocking state [ 298.136104][ T8412] bridge0: port 2(bridge_slave_1) entered forwarding state [ 298.143429][ T8412] bridge0: port 1(bridge_slave_0) entered blocking state [ 298.150611][ T8412] bridge0: port 1(bridge_slave_0) entered forwarding state [ 298.170371][ T8412] 8021q: adding VLAN 0 to HW filter on device bond0 [ 298.180316][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 298.188609][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 298.195928][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 298.204250][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 298.213469][ T8412] 8021q: adding VLAN 0 to HW filter on device team0 [ 298.222205][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 298.231017][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 298.238280][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 298.247589][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 298.255856][ T4814] bridge0: port 2(bridge_slave_1) entered blocking state [ 298.263846][ T4814] bridge0: port 2(bridge_slave_1) entered forwarding state [ 298.275814][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 298.284996][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 298.293691][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 298.303631][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 298.314165][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 298.325083][ T8412] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 298.337404][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 298.344894][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 298.354262][ T8412] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 298.367110][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 298.381650][ T8412] device veth0_vlan entered promiscuous mode [ 298.388152][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 298.396260][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 298.404746][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 298.414761][ T8412] device veth1_vlan entered promiscuous mode [ 298.427333][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 298.435396][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 298.444118][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 298.454130][ T8412] device veth0_macvtap entered promiscuous mode [ 298.462532][ T8412] device veth1_macvtap entered promiscuous mode [ 298.473535][ T8412] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 298.480827][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 298.489463][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 298.499309][ T8412] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 298.507625][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 298.517609][ T8412] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.526310][ T8412] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.535364][ T8412] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.546006][ T8412] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.571035][ T606] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 298.587769][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 298.588084][ T606] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 298.595680][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 298.617795][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 298.628430][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 298.722306][ T8] ------------[ cut here ]------------ [ 298.732890][ T8] hook not found, pf 3 num 0 [ 298.733199][ T8] WARNING: CPU: 0 PID: 8 at net/netfilter/core.c:480 __nf_unregister_net_hook+0xef/0x280 [ 298.749566][ T8] Modules linked in: [ 298.755045][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 298.763346][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 298.773990][ T8] Workqueue: netns cleanup_net [ 298.779087][ T8] RIP: 0010:__nf_unregister_net_hook+0xef/0x280 [ 298.785392][ T8] Code: 54 b3 fd 84 db 0f 85 9b 00 00 00 e8 4b 4d b3 fd 41 8b 54 24 1c 89 ee 48 c7 c7 f1 75 50 85 c6 05 5b 17 c7 02 01 e8 b3 5a 93 00 <0f> 0b eb 78 e8 28 4d b3 fd 48 8b 04 24 48 c1 e3 04 89 ee 4c 01 f3 [ 298.805957][ T8] RSP: 0018:ffffc90000cabd80 EFLAGS: 00010282 [ 298.812265][ T8] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 298.820643][ T8] RDX: ffff888100fd4000 RSI: ffffffff812adfd3 RDI: 0000000000000003 [ 298.829890][ T8] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 298.838228][ T8] R10: ffffffff812ad430 R11: 0000000000000000 R12: ffff8881460dc200 [ 298.846390][ T8] R13: ffff8881104a4a40 R14: ffff8881121f6a80 R15: 0000000000000001 [ 298.855604][ T8] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 298.865112][ T8] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 298.872643][ T8] CR2: 0000563e1abb8750 CR3: 0000000109adc000 CR4: 00000000001506f0 [ 298.881100][ T8] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 298.889622][ T8] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 298.898091][ T8] Call Trace: [ 298.901383][ T8] nf_unregister_net_hooks+0xb8/0xe0 [ 298.906836][ T8] arpt_unregister_table_pre_exit+0x46/0x60 [ 298.913992][ T8] ? arptable_filter_net_exit+0x20/0x20 [ 298.920037][ T8] cleanup_net+0x277/0x4d0 [ 298.924481][ T8] process_one_work+0x2c9/0x600 [ 298.930721][ T8] worker_thread+0x59/0x5d0 [ 298.935249][ T8] ? rescuer_thread+0x560/0x560 [ 298.941268][ T8] kthread+0x178/0x1b0 [ 298.946142][ T8] ? __kthread_bind_mask+0x90/0x90 [ 298.952012][ T8] ret_from_fork+0x1f/0x30 [ 298.956478][ T8] ---[ end trace 35f91d04d45fb383 ]--- [ 298.968010][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 301.560838][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 303.822847][ T8] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 303.863205][ T8] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2021/04/30 10:53:09 executed programs: 1 [ 304.759564][ T8] device hsr_slave_0 left promiscuous mode [ 304.766260][ T8] device hsr_slave_1 left promiscuous mode [ 304.772904][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 304.781226][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 304.788842][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 304.796456][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 304.804402][ T8] device bridge_slave_1 left promiscuous mode [ 304.811067][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 304.818803][ T8] device bridge_slave_0 left promiscuous mode [ 304.825047][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 304.833166][ T8] device veth1_macvtap left promiscuous mode [ 304.839531][ T8] device veth0_macvtap left promiscuous mode [ 304.845528][ T8] device veth1_vlan left promiscuous mode [ 304.851474][ T8] device veth0_vlan left promiscuous mode [ 305.020563][ T8] team0 (unregistering): Port device team_slave_1 removed [ 305.029652][ T8] team0 (unregistering): Port device team_slave_0 removed [ 305.038480][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 305.048779][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 305.062926][ T8] bond0 (unregistering): Released all slaves [ 306.541156][ T8708] chnl_net:caif_netlink_parms(): no params data found [ 306.562073][ T8708] bridge0: port 1(bridge_slave_0) entered blocking state [ 306.569817][ T8708] bridge0: port 1(bridge_slave_0) entered disabled state [ 306.578163][ T8708] device bridge_slave_0 entered promiscuous mode [ 306.585661][ T8708] bridge0: port 2(bridge_slave_1) entered blocking state [ 306.592895][ T8708] bridge0: port 2(bridge_slave_1) entered disabled state [ 306.601249][ T8708] device bridge_slave_1 entered promiscuous mode [ 306.612444][ T8708] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 306.623491][ T8708] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 306.637402][ T8708] team0: Port device team_slave_0 added [ 306.644163][ T8708] team0: Port device team_slave_1 added [ 306.654165][ T8708] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 306.661183][ T8708] 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. [ 306.687362][ T8708] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 306.699031][ T8708] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 306.705964][ T8708] 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. [ 306.732036][ T8708] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 306.749682][ T8708] device hsr_slave_0 entered promiscuous mode [ 306.757109][ T8708] device hsr_slave_1 entered promiscuous mode [ 306.800984][ T8708] 8021q: adding VLAN 0 to HW filter on device bond0 [ 306.811529][ T3785] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 306.819672][ T3785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 306.828845][ T8708] 8021q: adding VLAN 0 to HW filter on device team0 [ 306.837909][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 306.846331][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 306.855184][ T4814] bridge0: port 1(bridge_slave_0) entered blocking state [ 306.862370][ T4814] bridge0: port 1(bridge_slave_0) entered forwarding state [ 306.871722][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 306.887257][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 306.896310][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 306.904941][ T19] bridge0: port 2(bridge_slave_1) entered blocking state [ 306.912240][ T19] bridge0: port 2(bridge_slave_1) entered forwarding state [ 306.920052][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 306.928500][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 306.936740][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 306.944983][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 306.953190][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 306.961562][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 306.969766][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 306.978646][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 306.989254][ T8708] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 307.000288][ T8708] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 307.008509][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 307.023386][ T8708] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 307.030942][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 307.038682][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 307.087268][ T8708] device veth0_vlan entered promiscuous mode [ 307.093920][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 307.102688][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 307.111571][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 307.120428][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 307.131047][ T8708] device veth1_vlan entered promiscuous mode [ 307.146026][ T8708] device veth0_macvtap entered promiscuous mode [ 307.153662][ T3785] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 307.162282][ T3785] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 307.171574][ T3785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 307.180411][ T3785] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 307.189962][ T8708] device veth1_macvtap entered promiscuous mode [ 307.206222][ T8708] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 307.213806][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 307.222559][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 307.233382][ T8708] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 307.241480][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 307.250132][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 307.283368][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 307.307394][ T297] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 307.307673][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 307.315334][ T297] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 307.324976][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 307.338394][ T4814] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 308.023611][ T8] device hsr_slave_0 left promiscuous mode [ 308.030454][ T8] device hsr_slave_1 left promiscuous mode [ 308.045137][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 308.053402][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 308.061552][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 308.069886][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 308.078498][ T8] device bridge_slave_1 left promiscuous mode [ 308.084766][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 308.094248][ T8] device bridge_slave_0 left promiscuous mode [ 308.101093][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 308.109949][ T8] device veth1_macvtap left promiscuous mode [ 308.115940][ T8] device veth0_macvtap left promiscuous mode [ 308.122747][ T8] device veth1_vlan left promiscuous mode [ 308.130903][ T8] device veth0_vlan left promiscuous mode [ 308.404779][ T8] team0 (unregistering): Port device team_slave_1 removed [ 308.413936][ T8] team0 (unregistering): Port device team_slave_0 removed [ 308.423995][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 308.435810][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 308.460638][ T8] bond0 (unregistering): Released all slaves [ 312.797421][ T8948] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 314.884114][ T8948] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881121f6a80 (size 64): comm "syz-executor.0", pid 8412, jiffies 4294967111 (age 16.300s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 90 f3 a4 83 ff ff ff ff ................ 80 5a 1f 12 81 88 ff ff 80 68 40 16 81 88 ff ff .Z.......h@..... backtrace: [] kvmalloc_node+0x61/0xf0 [] nf_hook_entries_grow+0x31b/0x370 [] __nf_register_net_hook+0x8d/0x290 [] nf_register_net_hook+0xbf/0x100 [] nf_register_net_hooks+0x59/0xc0 [] arpt_register_table+0x152/0x1e0 [] arptable_filter_table_init+0x3d/0x60 [] xt_find_table_lock+0x189/0x290 [] xt_request_find_table_lock+0x27/0xb0 [] get_info+0xd2/0x430 [] do_arpt_get_ctl+0x224/0x520 [] nf_getsockopt+0x57/0x80 [] ip_getsockopt+0xfa/0x140 [] tcp_getsockopt+0x4b/0x80 [] __sys_getsockopt+0x133/0x2f0 [] __x64_sys_getsockopt+0x22/0x30 BUG: memory leak unreferenced object 0xffff8881121f6480 (size 64): comm "syz-executor.0", pid 8412, jiffies 4294967111 (age 16.300s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 90 f3 a4 83 ff ff ff ff ................ 80 5a 1f 12 81 88 ff ff d0 68 40 16 81 88 ff ff .Z.......h@..... backtrace: [] kvmalloc_node+0x61/0xf0 [] nf_hook_entries_grow+0x31b/0x370 [] __nf_register_net_hook+0x8d/0x290 [] nf_register_net_hook+0xbf/0x100 [] nf_register_net_hooks+0x59/0xc0 [] arpt_register_table+0x152/0x1e0 [] arptable_filter_table_init+0x3d/0x60 [] xt_find_table_lock+0x189/0x290 [] xt_request_find_table_lock+0x27/0xb0 [] get_info+0xd2/0x430 [] do_arpt_get_ctl+0x224/0x520 [] nf_getsockopt+0x57/0x80 [] ip_getsockopt+0xfa/0x140 [] tcp_getsockopt+0x4b/0x80 [] __sys_getsockopt+0x133/0x2f0 [] __x64_sys_getsockopt+0x22/0x30 BUG: memory leak unreferenced object 0xffff8881122858c0 (size 64): comm "kworker/u4:0", pid 8, jiffies 4294967793 (age 9.480s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 90 f3 a4 83 ff ff ff ff ................ 80 5a 1f 12 81 88 ff ff a8 68 40 16 81 88 ff ff .Z.......h@..... backtrace: [] kvmalloc_node+0x61/0xf0 [] __nf_hook_entries_try_shrink+0xfd/0x210 [] __nf_unregister_net_hook+0x17b/0x280 [] nf_unregister_net_hook+0x82/0xb0 [] ops_exit_list+0x41/0x80 [] cleanup_net+0x2c1/0x4d0 [] process_one_work+0x2c9/0x600 [] worker_thread+0x59/0x5d0 [] kthread+0x178/0x1b0 [] ret_from_fork+0x1f/0x30