[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.24' (ECDSA) to the list of known hosts. 2021/05/05 05:37:21 parsed 1 programs 2021/05/05 05:37:28 executed programs: 0 syzkaller login: [ 304.306911][ T8429] chnl_net:caif_netlink_parms(): no params data found [ 304.326127][ T8429] bridge0: port 1(bridge_slave_0) entered blocking state [ 304.333242][ T8429] bridge0: port 1(bridge_slave_0) entered disabled state [ 304.340823][ T8429] device bridge_slave_0 entered promiscuous mode [ 304.347714][ T8429] bridge0: port 2(bridge_slave_1) entered blocking state [ 304.355105][ T8429] bridge0: port 2(bridge_slave_1) entered disabled state [ 304.362588][ T8429] device bridge_slave_1 entered promiscuous mode [ 304.373112][ T8429] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 304.382902][ T8429] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 304.395623][ T8429] team0: Port device team_slave_0 added [ 304.401886][ T8429] team0: Port device team_slave_1 added [ 304.410926][ T8429] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 304.417862][ T8429] 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. [ 304.443921][ T8429] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 304.455092][ T8429] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 304.462070][ T8429] 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. [ 304.487963][ T8429] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 304.503407][ T8429] device hsr_slave_0 entered promiscuous mode [ 304.509655][ T8429] device hsr_slave_1 entered promiscuous mode [ 304.540398][ T8429] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 304.547820][ T8429] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 304.555533][ T8429] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 304.563149][ T8429] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 304.575025][ T8429] bridge0: port 2(bridge_slave_1) entered blocking state [ 304.582144][ T8429] bridge0: port 2(bridge_slave_1) entered forwarding state [ 304.589369][ T8429] bridge0: port 1(bridge_slave_0) entered blocking state [ 304.596409][ T8429] bridge0: port 1(bridge_slave_0) entered forwarding state [ 304.615788][ T8429] 8021q: adding VLAN 0 to HW filter on device bond0 [ 304.624749][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 304.632656][ T4536] bridge0: port 1(bridge_slave_0) entered disabled state [ 304.640447][ T4536] bridge0: port 2(bridge_slave_1) entered disabled state [ 304.647827][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 304.656932][ T8429] 8021q: adding VLAN 0 to HW filter on device team0 [ 304.665281][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 304.673636][ T4536] bridge0: port 1(bridge_slave_0) entered blocking state [ 304.680712][ T4536] bridge0: port 1(bridge_slave_0) entered forwarding state [ 304.689572][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 304.697730][ T3186] bridge0: port 2(bridge_slave_1) entered blocking state [ 304.704781][ T3186] bridge0: port 2(bridge_slave_1) entered forwarding state [ 304.720155][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 304.728413][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 304.736670][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 304.744670][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 304.752881][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 304.761405][ T8429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 304.773065][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 304.780551][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 304.790022][ T8429] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 304.801771][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 304.814642][ T8429] device veth0_vlan entered promiscuous mode [ 304.820972][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 304.828863][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 304.836544][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 304.846314][ T8429] device veth1_vlan entered promiscuous mode [ 304.858151][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 304.865941][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 304.873963][ T3186] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 304.883907][ T8429] device veth0_macvtap entered promiscuous mode [ 304.891771][ T8429] device veth1_macvtap entered promiscuous mode [ 304.902266][ T8429] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 304.909518][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 304.917997][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 304.927475][ T8429] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 304.935106][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 304.944612][ T8429] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 304.953414][ T8429] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 304.962239][ T8429] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 304.971083][ T8429] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 305.001915][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 305.016813][ T1366] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 305.019164][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 305.027839][ T1366] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 305.035987][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 305.054249][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 305.136000][ T3176] ------------[ cut here ]------------ [ 305.144022][ T3176] hook not found, pf 3 num 0 [ 305.144285][ T3176] WARNING: CPU: 0 PID: 3176 at net/netfilter/core.c:480 __nf_unregister_net_hook+0xef/0x280 [ 305.161160][ T3176] Modules linked in: [ 305.165069][ T3176] CPU: 0 PID: 3176 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 305.173794][ T3176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 305.184553][ T3176] Workqueue: netns cleanup_net [ 305.189339][ T3176] RIP: 0010:__nf_unregister_net_hook+0xef/0x280 [ 305.196279][ T3176] Code: b0 b2 fd 84 db 0f 85 9b 00 00 00 e8 6b a8 b2 fd 41 8b 54 24 1c 89 ee 48 c7 c7 a9 d9 50 85 c6 05 1e 56 c6 02 01 e8 5c 58 93 00 <0f> 0b eb 78 e8 48 a8 b2 fd 48 8b 04 24 48 c1 e3 04 89 ee 4c 01 f3 [ 305.216475][ T3176] RSP: 0018:ffffc900064ffd80 EFLAGS: 00010282 [ 305.223066][ T3176] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 305.231477][ T3176] RDX: ffff888101eae000 RSI: ffffffff812af093 RDI: 0000000000000003 [ 305.239886][ T3176] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 305.247865][ T3176] R10: ffffffff812ae4f0 R11: 0000000000000000 R12: ffff88814325db80 [ 305.256507][ T3176] R13: ffff888110eeca40 R14: ffff8881188ab900 R15: 0000000000000001 [ 305.266409][ T3176] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 305.275829][ T3176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 305.282784][ T3176] CR2: 00007f9e9af14000 CR3: 0000000110fd2000 CR4: 00000000001506f0 [ 305.291168][ T3176] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 305.299270][ T3176] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 305.308596][ T3176] Call Trace: [ 305.312202][ T3176] nf_unregister_net_hooks+0xb8/0xe0 [ 305.317502][ T3176] arpt_unregister_table_pre_exit+0x46/0x60 [ 305.323959][ T3176] ? arptable_filter_net_exit+0x20/0x20 [ 305.330115][ T3176] cleanup_net+0x277/0x4d0 [ 305.334554][ T3176] process_one_work+0x2c9/0x600 [ 305.340708][ T3176] worker_thread+0x59/0x5d0 [ 305.345230][ T3176] ? rescuer_thread+0x560/0x560 [ 305.350594][ T3176] kthread+0x178/0x1b0 [ 305.354690][ T3176] ? __kthread_bind_mask+0x90/0x90 [ 305.361225][ T3176] ret_from_fork+0x1f/0x30 [ 305.365653][ T3176] ---[ end trace 55f582bc519473f6 ]--- [ 305.377799][ T3176] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 307.973007][ T3176] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 310.225209][ T3176] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 310.275368][ T3176] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2021/05/05 05:37:36 executed programs: 1 [ 311.161642][ T3176] device hsr_slave_0 left promiscuous mode [ 311.167662][ T3176] device hsr_slave_1 left promiscuous mode [ 311.174078][ T3176] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 311.181496][ T3176] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 311.188861][ T3176] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 311.197459][ T3176] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 311.205009][ T3176] device bridge_slave_1 left promiscuous mode [ 311.211281][ T3176] bridge0: port 2(bridge_slave_1) entered disabled state [ 311.218617][ T3176] device bridge_slave_0 left promiscuous mode [ 311.224778][ T3176] bridge0: port 1(bridge_slave_0) entered disabled state [ 311.232670][ T3176] device veth1_macvtap left promiscuous mode [ 311.238680][ T3176] device veth0_macvtap left promiscuous mode [ 311.244727][ T3176] device veth1_vlan left promiscuous mode [ 311.244744][ T3176] device veth0_vlan left promiscuous mode [ 311.407340][ T3176] team0 (unregistering): Port device team_slave_1 removed [ 311.415681][ T3176] team0 (unregistering): Port device team_slave_0 removed [ 311.423943][ T3176] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 311.433620][ T3176] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 311.447843][ T3176] bond0 (unregistering): Released all slaves [ 312.917588][ T8727] chnl_net:caif_netlink_parms(): no params data found [ 312.937763][ T8727] bridge0: port 1(bridge_slave_0) entered blocking state [ 312.945171][ T8727] bridge0: port 1(bridge_slave_0) entered disabled state [ 312.954711][ T8727] device bridge_slave_0 entered promiscuous mode [ 312.962288][ T8727] bridge0: port 2(bridge_slave_1) entered blocking state [ 312.969358][ T8727] bridge0: port 2(bridge_slave_1) entered disabled state [ 312.977150][ T8727] device bridge_slave_1 entered promiscuous mode [ 312.988288][ T8727] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 313.000422][ T8727] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 313.014542][ T8727] team0: Port device team_slave_0 added [ 313.021172][ T8727] team0: Port device team_slave_1 added [ 313.030666][ T8727] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 313.037616][ T8727] 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. [ 313.063764][ T8727] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 313.075547][ T8727] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 313.082540][ T8727] 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. [ 313.108444][ T8727] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 313.124458][ T8727] device hsr_slave_0 entered promiscuous mode [ 313.130860][ T8727] device hsr_slave_1 entered promiscuous mode [ 313.174161][ T8727] 8021q: adding VLAN 0 to HW filter on device bond0 [ 313.183934][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 313.191886][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 313.200938][ T8727] 8021q: adding VLAN 0 to HW filter on device team0 [ 313.209918][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 313.218183][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 313.226632][ T4816] bridge0: port 1(bridge_slave_0) entered blocking state [ 313.233682][ T4816] bridge0: port 1(bridge_slave_0) entered forwarding state [ 313.241439][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 313.250414][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 313.258691][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 313.267173][ T4816] bridge0: port 2(bridge_slave_1) entered blocking state [ 313.274267][ T4816] bridge0: port 2(bridge_slave_1) entered forwarding state [ 313.290035][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 313.298561][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 313.307104][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 313.315639][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 313.323958][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 313.332321][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 313.340602][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 313.348512][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 313.356838][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 313.365991][ T8727] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 313.378068][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 313.385616][ T4536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 313.395958][ T8727] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 313.459817][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 313.468273][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 313.476443][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 313.483991][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 313.493444][ T8727] device veth0_vlan entered promiscuous mode [ 313.502500][ T8727] device veth1_vlan entered promiscuous mode [ 313.515777][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 313.523560][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 313.532309][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 313.542053][ T8727] device veth0_macvtap entered promiscuous mode [ 313.550210][ T8727] device veth1_macvtap entered promiscuous mode [ 313.562089][ T8727] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 313.569491][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 313.577279][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 313.585769][ T4816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 313.595768][ T8727] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 313.603123][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 313.611587][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 313.645129][ T1366] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 313.653650][ T1366] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 313.660052][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 313.668753][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 313.674866][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 313.683578][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 314.344095][ T8] device hsr_slave_0 left promiscuous mode [ 314.353698][ T8] device hsr_slave_1 left promiscuous mode [ 314.364102][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 314.371724][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 314.379117][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 314.386996][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 314.395000][ T8] device bridge_slave_1 left promiscuous mode [ 314.401282][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 314.408859][ T8] device bridge_slave_0 left promiscuous mode [ 314.415209][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 314.423749][ T8] device veth1_macvtap left promiscuous mode [ 314.430035][ T8] device veth0_macvtap left promiscuous mode [ 314.436024][ T8] device veth1_vlan left promiscuous mode [ 314.441941][ T8] device veth0_vlan left promiscuous mode [ 314.703756][ T8] team0 (unregistering): Port device team_slave_1 removed [ 314.713764][ T8] team0 (unregistering): Port device team_slave_0 removed [ 314.723568][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 314.735025][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 314.760493][ T8] bond0 (unregistering): Released all slaves [ 315.659974][ T3238] ieee802154 phy0 wpan0: encryption failed: -22 [ 315.666380][ T3238] ieee802154 phy1 wpan1: encryption failed: -22 [ 318.971140][ T8968] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881188ab900 (size 64): comm "syz-executor.0", pid 8429, jiffies 4294967772 (age 16.030s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 50 af a5 83 ff ff ff ff ........P....... 00 34 87 18 81 88 ff ff 00 a0 82 18 81 88 ff ff .4.............. 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 0xffff888118890580 (size 64): comm "syz-executor.0", pid 8429, jiffies 4294967772 (age 16.030s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 50 af a5 83 ff ff ff ff ........P....... 00 34 87 18 81 88 ff ff 50 a0 82 18 81 88 ff ff .4......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 0xffff88810dbd3280 (size 64): comm "kworker/u4:4", pid 3176, jiffies 4294968448 (age 9.270s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 50 af a5 83 ff ff ff ff ........P....... 00 34 87 18 81 88 ff ff 28 a0 82 18 81 88 ff ff .4......(....... 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 [ 321.033651][ T8968] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)