Warning: Permanently added '10.128.1.65' (ECDSA) to the list of known hosts. 2021/05/06 10:40:33 parsed 1 programs 2021/05/06 10:40:41 executed programs: 0 syzkaller login: [ 324.783393][ T8408] chnl_net:caif_netlink_parms(): no params data found [ 324.833713][ T8408] bridge0: port 1(bridge_slave_0) entered blocking state [ 324.841516][ T8408] bridge0: port 1(bridge_slave_0) entered disabled state [ 324.851707][ T8408] device bridge_slave_0 entered promiscuous mode [ 324.858781][ T8408] bridge0: port 2(bridge_slave_1) entered blocking state [ 324.866014][ T8408] bridge0: port 2(bridge_slave_1) entered disabled state [ 324.873477][ T8408] device bridge_slave_1 entered promiscuous mode [ 324.884212][ T8408] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 324.894288][ T8408] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 324.907207][ T8408] team0: Port device team_slave_0 added [ 324.913582][ T8408] team0: Port device team_slave_1 added [ 324.922825][ T8408] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 324.929929][ T8408] 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. [ 324.956012][ T8408] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 324.967287][ T8408] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 324.974259][ T8408] 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. [ 325.000543][ T8408] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 325.016330][ T8408] device hsr_slave_0 entered promiscuous mode [ 325.022697][ T8408] device hsr_slave_1 entered promiscuous mode [ 325.052298][ T8408] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 325.060436][ T8408] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 325.068276][ T8408] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 325.076450][ T8408] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 325.088160][ T8408] bridge0: port 2(bridge_slave_1) entered blocking state [ 325.095267][ T8408] bridge0: port 2(bridge_slave_1) entered forwarding state [ 325.102750][ T8408] bridge0: port 1(bridge_slave_0) entered blocking state [ 325.109867][ T8408] bridge0: port 1(bridge_slave_0) entered forwarding state [ 325.130893][ T8408] 8021q: adding VLAN 0 to HW filter on device bond0 [ 325.140610][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 325.148344][ T58] bridge0: port 1(bridge_slave_0) entered disabled state [ 325.156173][ T58] bridge0: port 2(bridge_slave_1) entered disabled state [ 325.164164][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 325.173528][ T8408] 8021q: adding VLAN 0 to HW filter on device team0 [ 325.181864][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 325.190296][ T8630] bridge0: port 1(bridge_slave_0) entered blocking state [ 325.197330][ T8630] bridge0: port 1(bridge_slave_0) entered forwarding state [ 325.206456][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 325.214883][ T8548] bridge0: port 2(bridge_slave_1) entered blocking state [ 325.221951][ T8548] bridge0: port 2(bridge_slave_1) entered forwarding state [ 325.237814][ T8408] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 325.248350][ T8408] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 325.260051][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 325.268418][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 325.277114][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 325.285317][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 325.293558][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 325.300985][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 325.314974][ T8408] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 325.322389][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 325.330078][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 325.342314][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 325.355674][ T8408] device veth0_vlan entered promiscuous mode [ 325.362103][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 325.370333][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 325.377827][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 325.388264][ T8408] device veth1_vlan entered promiscuous mode [ 325.401253][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 325.410510][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 325.418672][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 325.429058][ T8408] device veth0_macvtap entered promiscuous mode [ 325.437541][ T8408] device veth1_macvtap entered promiscuous mode [ 325.449811][ T8408] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 325.457197][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 325.466396][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 325.477077][ T8408] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 325.485198][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 325.496871][ T8408] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 325.506458][ T8408] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 325.516009][ T8408] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 325.525237][ T8408] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 325.560003][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 325.568441][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 325.576203][ T3163] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 325.585888][ T3163] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 325.588516][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 325.609795][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 325.700282][ T3163] ------------[ cut here ]------------ [ 325.705760][ T3163] hook not found, pf 3 num 0 [ 325.706033][ T3163] WARNING: CPU: 0 PID: 3163 at net/netfilter/core.c:480 __nf_unregister_net_hook+0xef/0x280 [ 325.724971][ T3163] Modules linked in: [ 325.728875][ T3163] CPU: 0 PID: 3163 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 325.737270][ T3163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 325.747945][ T3163] Workqueue: netns cleanup_net [ 325.752842][ T3163] RIP: 0010:__nf_unregister_net_hook+0xef/0x280 [ 325.759105][ T3163] Code: 59 b2 fd 84 db 0f 85 9b 00 00 00 e8 5b 52 b2 fd 41 8b 54 24 1c 89 ee 48 c7 c7 e1 e5 50 85 c6 05 ff 09 c6 02 01 e8 bc 51 93 00 <0f> 0b eb 78 e8 38 52 b2 fd 48 8b 04 24 48 c1 e3 04 89 ee 4c 01 f3 [ 325.779582][ T3163] RSP: 0018:ffffc9000623bd80 EFLAGS: 00010282 [ 325.785679][ T3163] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 325.793853][ T3163] RDX: ffff888104c3e000 RSI: ffffffff812af0f3 RDI: 0000000000000003 [ 325.802100][ T3163] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 325.810240][ T3163] R10: ffffffff812ae550 R11: 0000000000000000 R12: ffff88810b370080 [ 325.818301][ T3163] R13: ffff888112106a40 R14: ffff888118e70880 R15: 0000000000000001 [ 325.826391][ T3163] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 325.835469][ T3163] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 325.842385][ T3163] CR2: 000055b7f7560160 CR3: 0000000006029000 CR4: 00000000001506f0 [ 325.850434][ T3163] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 325.858429][ T3163] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 325.866744][ T3163] Call Trace: [ 325.870096][ T3163] nf_unregister_net_hooks+0xb8/0xe0 [ 325.875393][ T3163] arpt_unregister_table_pre_exit+0x46/0x60 [ 325.881619][ T3163] ? arptable_filter_net_exit+0x20/0x20 [ 325.887279][ T3163] cleanup_net+0x277/0x4d0 [ 325.891801][ T3163] process_one_work+0x2c9/0x600 [ 325.896660][ T3163] worker_thread+0x59/0x5d0 [ 325.901223][ T3163] ? rescuer_thread+0x560/0x560 [ 325.906092][ T3163] kthread+0x178/0x1b0 [ 325.910501][ T3163] ? __kthread_bind_mask+0x90/0x90 [ 325.915634][ T3163] ret_from_fork+0x1f/0x30 [ 325.920141][ T3163] ---[ end trace 8d338cc2ffce1494 ]--- [ 325.935207][ T3163] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 328.543181][ T3163] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 331.115268][ T3163] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 331.175567][ T3163] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2021/05/06 10:40:49 executed programs: 1 [ 332.251156][ T3163] device hsr_slave_0 left promiscuous mode [ 332.257189][ T3163] device hsr_slave_1 left promiscuous mode [ 332.263534][ T3163] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 332.271217][ T3163] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 332.278544][ T3163] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 332.286695][ T3163] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 332.294090][ T3163] device bridge_slave_1 left promiscuous mode [ 332.300205][ T3163] bridge0: port 2(bridge_slave_1) entered disabled state [ 332.307525][ T3163] device bridge_slave_0 left promiscuous mode [ 332.314720][ T3163] bridge0: port 1(bridge_slave_0) entered disabled state [ 332.322618][ T3163] device veth1_macvtap left promiscuous mode [ 332.328587][ T3163] device veth0_macvtap left promiscuous mode [ 332.334663][ T3163] device veth1_vlan left promiscuous mode [ 332.340721][ T3163] device veth0_vlan left promiscuous mode [ 332.509428][ T3163] team0 (unregistering): Port device team_slave_1 removed [ 332.517356][ T3163] team0 (unregistering): Port device team_slave_0 removed [ 332.526098][ T3163] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 332.535824][ T3163] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 332.549962][ T3163] bond0 (unregistering): Released all slaves [ 333.679525][ T8711] chnl_net:caif_netlink_parms(): no params data found [ 333.699192][ T8711] bridge0: port 1(bridge_slave_0) entered blocking state [ 333.706349][ T8711] bridge0: port 1(bridge_slave_0) entered disabled state [ 333.714400][ T8711] device bridge_slave_0 entered promiscuous mode [ 333.721988][ T8711] bridge0: port 2(bridge_slave_1) entered blocking state [ 333.729052][ T8711] bridge0: port 2(bridge_slave_1) entered disabled state [ 333.736556][ T8711] device bridge_slave_1 entered promiscuous mode [ 333.747368][ T8711] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 333.757766][ T8711] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 333.771209][ T8711] team0: Port device team_slave_0 added [ 333.777655][ T8711] team0: Port device team_slave_1 added [ 333.787204][ T8711] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 333.794285][ T8711] 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. [ 333.821102][ T8711] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 333.832786][ T8711] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 333.839765][ T8711] 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. [ 333.866786][ T8711] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 333.882973][ T8711] device hsr_slave_0 entered promiscuous mode [ 333.890128][ T8711] device hsr_slave_1 entered promiscuous mode [ 333.919135][ T8711] bridge0: port 2(bridge_slave_1) entered blocking state [ 333.926839][ T8711] bridge0: port 2(bridge_slave_1) entered forwarding state [ 333.934373][ T8711] bridge0: port 1(bridge_slave_0) entered blocking state [ 333.945912][ T8711] bridge0: port 1(bridge_slave_0) entered forwarding state [ 333.968975][ T8711] 8021q: adding VLAN 0 to HW filter on device bond0 [ 333.979014][ T3597] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 333.987484][ T3597] bridge0: port 1(bridge_slave_0) entered disabled state [ 333.997545][ T3597] bridge0: port 2(bridge_slave_1) entered disabled state [ 334.007502][ T8711] 8021q: adding VLAN 0 to HW filter on device team0 [ 334.018499][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 334.026997][ T58] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.034179][ T58] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.049685][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 334.057886][ T58] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.065623][ T58] bridge0: port 2(bridge_slave_1) entered forwarding state [ 334.073626][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 334.081960][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 334.090376][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 334.098956][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 334.109253][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 334.120169][ T8711] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 334.132755][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 334.140968][ T58] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 334.151605][ T8711] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 334.209508][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 334.217937][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 334.226253][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 334.234153][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 334.243071][ T8711] device veth0_vlan entered promiscuous mode [ 334.252388][ T8711] device veth1_vlan entered promiscuous mode [ 334.266336][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 334.274969][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 334.284424][ T8711] device veth0_macvtap entered promiscuous mode [ 334.293112][ T8711] device veth1_macvtap entered promiscuous mode [ 334.305056][ T8711] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 334.313767][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 334.321684][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 334.329303][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 334.338288][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 334.348366][ T8711] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 334.356618][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 334.364899][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 334.403712][ T3163] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 334.412260][ T3163] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 334.434689][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 334.438808][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 334.458636][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 334.469086][ T8548] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 335.165397][ T8] device hsr_slave_0 left promiscuous mode [ 335.172535][ T8] device hsr_slave_1 left promiscuous mode [ 335.186165][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 335.195712][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 335.203651][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 335.211455][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 335.218857][ T8] device bridge_slave_1 left promiscuous mode [ 335.225325][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 335.233231][ T8] device bridge_slave_0 left promiscuous mode [ 335.239557][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 335.248701][ T8] device veth1_macvtap left promiscuous mode [ 335.255282][ T8] device veth0_macvtap left promiscuous mode [ 335.261982][ T8] device veth1_vlan left promiscuous mode [ 335.267707][ T8] device veth0_vlan left promiscuous mode [ 335.552879][ T8] team0 (unregistering): Port device team_slave_1 removed [ 335.570075][ T8] team0 (unregistering): Port device team_slave_0 removed [ 335.583467][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 335.599722][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 335.625569][ T8] bond0 (unregistering): Released all slaves [ 340.011641][ T8952] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 342.171504][ T8952] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888118e70880 (size 64): comm "syz-executor.0", pid 8408, jiffies 4294969832 (age 16.610s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 f0 05 a6 83 ff ff ff ff ................ 00 3c f9 18 81 88 ff ff 80 e2 e1 18 81 88 ff ff .<.............. 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 0xffff888118e70840 (size 64): comm "syz-executor.0", pid 8408, jiffies 4294969832 (age 16.610s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 f0 05 a6 83 ff ff ff ff ................ 00 3c f9 18 81 88 ff ff d0 e2 e1 18 81 88 ff ff .<.............. 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 0xffff888113c2e600 (size 64): comm "kworker/u4:4", pid 3163, jiffies 4294970565 (age 9.280s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 f0 05 a6 83 ff ff ff ff ................ 00 3c f9 18 81 88 ff ff a8 e2 e1 18 81 88 ff ff .<.............. 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