Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts. 2021/05/01 15:50:50 parsed 1 programs 2021/05/01 15:50:58 executed programs: 0 syzkaller login: [ 299.555443][ T8440] chnl_net:caif_netlink_parms(): no params data found [ 299.580730][ T8440] bridge0: port 1(bridge_slave_0) entered blocking state [ 299.587906][ T8440] bridge0: port 1(bridge_slave_0) entered disabled state [ 299.595236][ T8440] device bridge_slave_0 entered promiscuous mode [ 299.602762][ T8440] bridge0: port 2(bridge_slave_1) entered blocking state [ 299.610059][ T8440] bridge0: port 2(bridge_slave_1) entered disabled state [ 299.617530][ T8440] device bridge_slave_1 entered promiscuous mode [ 299.628751][ T8440] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 299.638820][ T8440] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 299.651710][ T8440] team0: Port device team_slave_0 added [ 299.658113][ T8440] team0: Port device team_slave_1 added [ 299.667159][ T8440] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 299.674338][ T8440] 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. [ 299.701053][ T8440] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 299.712312][ T8440] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 299.719266][ T8440] 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. [ 299.745539][ T8440] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 299.761242][ T8440] device hsr_slave_0 entered promiscuous mode [ 299.767605][ T8440] device hsr_slave_1 entered promiscuous mode [ 299.798245][ T8440] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 299.806103][ T8440] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 299.814425][ T8440] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 299.822261][ T8440] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 299.834248][ T8440] bridge0: port 2(bridge_slave_1) entered blocking state [ 299.841335][ T8440] bridge0: port 2(bridge_slave_1) entered forwarding state [ 299.848619][ T8440] bridge0: port 1(bridge_slave_0) entered blocking state [ 299.855663][ T8440] bridge0: port 1(bridge_slave_0) entered forwarding state [ 299.876244][ T8440] 8021q: adding VLAN 0 to HW filter on device bond0 [ 299.885301][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 299.893347][ T2015] bridge0: port 1(bridge_slave_0) entered disabled state [ 299.901316][ T2015] bridge0: port 2(bridge_slave_1) entered disabled state [ 299.909301][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 299.918531][ T8440] 8021q: adding VLAN 0 to HW filter on device team0 [ 299.927437][ T3784] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 299.936019][ T3784] bridge0: port 1(bridge_slave_0) entered blocking state [ 299.943241][ T3784] bridge0: port 1(bridge_slave_0) entered forwarding state [ 299.958108][ T3784] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 299.966367][ T3784] bridge0: port 2(bridge_slave_1) entered blocking state [ 299.973462][ T3784] bridge0: port 2(bridge_slave_1) entered forwarding state [ 299.981545][ T3784] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 299.990066][ T3784] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 299.999368][ T3784] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 300.008271][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 300.016820][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 300.026596][ T8440] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 300.038799][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 300.046539][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 300.056960][ T8440] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 300.070118][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 300.084717][ T8440] device veth0_vlan entered promiscuous mode [ 300.091079][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 300.099599][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 300.107142][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 300.117549][ T8440] device veth1_vlan entered promiscuous mode [ 300.130520][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 300.140069][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 300.148785][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 300.158567][ T8440] device veth0_macvtap entered promiscuous mode [ 300.166614][ T8440] device veth1_macvtap entered promiscuous mode [ 300.178755][ T8440] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 300.186113][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 300.195941][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 300.206639][ T8440] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 300.214909][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 300.224412][ T8440] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 300.233535][ T8440] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 300.242596][ T8440] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 300.251574][ T8440] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 300.278008][ T2989] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 300.286055][ T2989] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 300.294374][ T24] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 300.303034][ T24] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 300.311012][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 300.319293][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 300.398573][ T2989] ------------[ cut here ]------------ [ 300.404060][ T2989] hook not found, pf 3 num 0 [ 300.404333][ T2989] WARNING: CPU: 0 PID: 2989 at net/netfilter/core.c:480 __nf_unregister_net_hook+0xef/0x280 [ 300.424561][ T2989] Modules linked in: [ 300.429107][ T2989] CPU: 0 PID: 2989 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 300.437274][ T2989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 300.448492][ T2989] Workqueue: netns cleanup_net [ 300.453287][ T2989] RIP: 0010:__nf_unregister_net_hook+0xef/0x280 [ 300.460188][ T2989] Code: db b2 fd 84 db 0f 85 9b 00 00 00 e8 bb d3 b2 fd 41 8b 54 24 1c 89 ee 48 c7 c7 99 c4 50 85 c6 05 6c 99 c6 02 01 e8 92 4f 93 00 <0f> 0b eb 78 e8 98 d3 b2 fd 48 8b 04 24 48 c1 e3 04 89 ee 4c 01 f3 [ 300.480521][ T2989] RSP: 0018:ffffc90005f37d80 EFLAGS: 00010282 [ 300.486609][ T2989] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 300.495376][ T2989] RDX: ffff8881049d2000 RSI: ffffffff812adff3 RDI: 0000000000000003 [ 300.504037][ T2989] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 300.512515][ T2989] R10: ffffffff812ad450 R11: 0000000000000000 R12: ffff88814358d200 [ 300.521029][ T2989] R13: ffff888111928a40 R14: ffff888118e1f1c0 R15: 0000000000000001 [ 300.529567][ T2989] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 300.539539][ T2989] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 300.546469][ T2989] CR2: 00007fd3981fc018 CR3: 0000000112335000 CR4: 00000000001506f0 [ 300.555358][ T2989] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 300.564942][ T2989] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 300.573516][ T2989] Call Trace: [ 300.576804][ T2989] nf_unregister_net_hooks+0xb8/0xe0 [ 300.582967][ T2989] arpt_unregister_table_pre_exit+0x46/0x60 [ 300.589655][ T2989] ? arptable_filter_net_exit+0x20/0x20 [ 300.595222][ T2989] cleanup_net+0x277/0x4d0 [ 300.600758][ T2989] process_one_work+0x2c9/0x600 [ 300.605632][ T2989] worker_thread+0x59/0x5d0 [ 300.610961][ T2989] ? rescuer_thread+0x560/0x560 [ 300.615867][ T2989] kthread+0x178/0x1b0 [ 300.620625][ T2989] ? __kthread_bind_mask+0x90/0x90 [ 300.626078][ T2989] ret_from_fork+0x1f/0x30 [ 300.631269][ T2989] ---[ end trace bd70ece4ea345ada ]--- [ 300.642922][ T2989] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 303.211400][ T2989] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 305.783209][ T2989] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2021/05/01 15:51:05 executed programs: 1 [ 305.962816][ T2989] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 306.789711][ T2989] device hsr_slave_0 left promiscuous mode [ 306.795839][ T2989] device hsr_slave_1 left promiscuous mode [ 306.802272][ T2989] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 306.809963][ T2989] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 306.818210][ T2989] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 306.825587][ T2989] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 306.833342][ T2989] device bridge_slave_1 left promiscuous mode [ 306.839546][ T2989] bridge0: port 2(bridge_slave_1) entered disabled state [ 306.846913][ T2989] device bridge_slave_0 left promiscuous mode [ 306.853232][ T2989] bridge0: port 1(bridge_slave_0) entered disabled state [ 306.861172][ T2989] device veth1_macvtap left promiscuous mode [ 306.867288][ T2989] device veth0_macvtap left promiscuous mode [ 306.873462][ T2989] device veth1_vlan left promiscuous mode [ 306.879402][ T2989] device veth0_vlan left promiscuous mode [ 307.059367][ T2989] team0 (unregistering): Port device team_slave_1 removed [ 307.067377][ T2989] team0 (unregistering): Port device team_slave_0 removed [ 307.075756][ T2989] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 307.085377][ T2989] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 307.099426][ T2989] bond0 (unregistering): Released all slaves [ 308.098955][ T8741] chnl_net:caif_netlink_parms(): no params data found [ 308.118995][ T8741] bridge0: port 1(bridge_slave_0) entered blocking state [ 308.126071][ T8741] bridge0: port 1(bridge_slave_0) entered disabled state [ 308.133621][ T8741] device bridge_slave_0 entered promiscuous mode [ 308.141382][ T8741] bridge0: port 2(bridge_slave_1) entered blocking state [ 308.148652][ T8741] bridge0: port 2(bridge_slave_1) entered disabled state [ 308.155983][ T8741] device bridge_slave_1 entered promiscuous mode [ 308.167419][ T8741] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 308.178363][ T8741] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 308.191926][ T8741] team0: Port device team_slave_0 added [ 308.198939][ T8741] team0: Port device team_slave_1 added [ 308.208466][ T8741] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 308.215416][ T8741] 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. [ 308.241367][ T8741] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 308.252751][ T8741] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 308.259982][ T8741] 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. [ 308.285940][ T8741] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 308.301823][ T8741] device hsr_slave_0 entered promiscuous mode [ 308.308224][ T8741] device hsr_slave_1 entered promiscuous mode [ 308.336302][ T8741] bridge0: port 2(bridge_slave_1) entered blocking state [ 308.343363][ T8741] bridge0: port 2(bridge_slave_1) entered forwarding state [ 308.350638][ T8741] bridge0: port 1(bridge_slave_0) entered blocking state [ 308.357773][ T8741] bridge0: port 1(bridge_slave_0) entered forwarding state [ 308.381198][ T8741] 8021q: adding VLAN 0 to HW filter on device bond0 [ 308.391531][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 308.399919][ T4824] bridge0: port 1(bridge_slave_0) entered disabled state [ 308.407181][ T4824] bridge0: port 2(bridge_slave_1) entered disabled state [ 308.416584][ T8741] 8021q: adding VLAN 0 to HW filter on device team0 [ 308.425188][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 308.433674][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 308.440737][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 308.449715][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 308.458383][ T2015] bridge0: port 2(bridge_slave_1) entered blocking state [ 308.465423][ T2015] bridge0: port 2(bridge_slave_1) entered forwarding state [ 308.477935][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 308.486695][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 308.495594][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 308.505355][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 308.514768][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 308.524389][ T8741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 308.536414][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 308.544069][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 308.554322][ T8741] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 308.608912][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 308.619408][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 308.628847][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 308.636495][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 308.645322][ T8741] device veth0_vlan entered promiscuous mode [ 308.654668][ T8741] device veth1_vlan entered promiscuous mode [ 308.668253][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 308.676365][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 308.684491][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 308.694386][ T8741] device veth0_macvtap entered promiscuous mode [ 308.702428][ T8741] device veth1_macvtap entered promiscuous mode [ 308.713946][ T8741] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 308.721457][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 308.729998][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 308.739465][ T8741] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 308.746682][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 308.755357][ T2015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 308.787518][ T2989] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 308.795404][ T2989] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 308.811036][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 308.821237][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 308.829593][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 308.836979][ T8659] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 309.584384][ T8] device hsr_slave_0 left promiscuous mode [ 309.591063][ T8] device hsr_slave_1 left promiscuous mode [ 309.600188][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 309.607573][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 309.615347][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 309.623016][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 309.630688][ T8] device bridge_slave_1 left promiscuous mode [ 309.636847][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 309.644970][ T8] device bridge_slave_0 left promiscuous mode [ 309.651517][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 309.660033][ T8] device veth1_macvtap left promiscuous mode [ 309.666108][ T8] device veth0_macvtap left promiscuous mode [ 309.672436][ T8] device veth1_vlan left promiscuous mode [ 309.678435][ T8] device veth0_vlan left promiscuous mode [ 309.940813][ T8] team0 (unregistering): Port device team_slave_1 removed [ 309.949995][ T8] team0 (unregistering): Port device team_slave_0 removed [ 309.958245][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 309.970018][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 309.990748][ T8] bond0 (unregistering): Released all slaves [ 314.186345][ T8982] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 315.639226][ T3229] ieee802154 phy0 wpan0: encryption failed: -22 [ 315.645634][ T3229] ieee802154 phy1 wpan1: encryption failed: -22 [ 316.303940][ T8982] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888118e1f1c0 (size 64): comm "syz-executor.0", pid 8440, jiffies 4294967301 (age 16.030s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 e0 6d a5 83 ff ff ff ff .........m...... 00 da e1 18 81 88 ff ff 00 9a aa 16 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 0xffff888118f95d40 (size 64): comm "syz-executor.0", pid 8440, jiffies 4294967301 (age 16.030s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 e0 6d a5 83 ff ff ff ff .........m...... 00 da e1 18 81 88 ff ff 50 9a aa 16 81 88 ff ff ........P....... 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 0xffff88810ff82640 (size 64): comm "kworker/u4:4", pid 2989, jiffies 4294968020 (age 8.840s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 e0 6d a5 83 ff ff ff ff .........m...... 00 da e1 18 81 88 ff ff 28 9a aa 16 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