[ 44.520105] xdummy0: entered promiscuous mode [ 44.523757] BUG: kernel NULL pointer dereference, address: 0000000000000858 [ 44.523807] #PF: supervisor read access in kernel mode [ 44.523837] #PF: error_code(0x0000) - not-present page [ 44.523868] PGD 74de067 P4D 4cbb067 PUD 61a8067 PMD 0 [ 44.523899] Oops: Oops: 0000 [#1] SMP [ 44.523924] CPU: 3 UID: 0 PID: 7369 Comm: tap Not tainted 7.2.0-rc1-virtme #1 PREEMPT(lazy) [ 44.523972] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 44.524003] RIP: 0010:macvlan_port_release_mac+0x23/0x220 [ 44.524036] Code: 10 eb d9 0f 1f 40 00 0f 1f 44 00 00 48 81 ec 88 00 00 00 65 48 8b 05 4c a1 6b 01 48 89 84 24 80 00 00 00 48 8b 87 00 01 00 00 80 58 08 00 00 01 74 24 48 8b 10 48 8b 92 58 04 00 00 8b 0a 0f [ 44.524110] RSP: 0018:ff327a93002cf7c0 EFLAGS: 00010286 [ 44.524139] RAX: 0000000000000000 RBX: ff13e985c78a6000 RCX: 0000000000000000 [ 44.524181] RDX: 0000000000000000 RSI: ff13e985c78a6818 RDI: ff13e985c6c2d000 [ 44.524222] RBP: ff13e985c78a6818 R08: ff13e985fed9a338 R09: 0000000000000000 [ 44.524260] R10: 0000000a5cf05dd7 R11: 0000000a5cf05dd7 R12: ff13e985c6c2d000 [ 44.524299] R13: ff13e985c3278400 R14: ff13e985c1e95d00 R15: 0000000000000003 [ 44.524341] FS: 00007f60096d3740(0000) GS:ff13e986707b7000(0000) knlGS:0000000000000000 [ 44.524383] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.524411] CR2: 0000000000000858 CR3: 0000000006c74005 CR4: 0000000000771ef0 [ 44.524452] PKRU: 55555554 [ 44.524467] Call Trace: [ 44.524480] [ 44.524499] ? enable_work+0x3a/0x100 [ 44.524524] ? cancel_work_sync+0x62/0x70 [ 44.524553] macvlan_port_destroy+0xa1/0xb0 [ 44.524573] unregister_netdevice_many_notify+0x685/0xa30 [ 44.524597] rtnl_dellink+0x257/0x430 [ 44.524616] ? rtnl_dellinkprop+0x20/0x20 [ 44.524667] rtnetlink_rcv_msg+0x39f/0x460 [ 44.524688] ? pick_eevdf+0x93/0x220 [ 44.524712] ? rtnl_calcit.isra.0+0x160/0x160 [ 44.524738] netlink_rcv_skb+0xca/0x140 [ 44.524758] netlink_unicast+0x26b/0x3a0 [ 44.524781] netlink_sendmsg+0x1e2/0x430 [ 44.524801] __sys_sendto+0x188/0x210 [ 44.524819] ? __d_alloc+0x40/0x210 [ 44.524843] __x64_sys_sendto+0x24/0x30 [ 44.524866] do_syscall_64+0x104/0x520 [ 44.524894] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 44.524923] RIP: 0033:0x7f600974554e [ 44.524945] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 44.525030] RSP: 002b:00007ffd9c4e3e40 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 44.525069] RAX: ffffffffffffffda RBX: 0000000000000030 RCX: 00007f600974554e [ 44.525100] RDX: 0000000000000030 RSI: 00007ffd9c4e3ea0 RDI: 0000000000000005 [ 44.525138] RBP: 00007ffd9c4e3e50 R08: 0000000000000000 R09: 0000000000000000 [ 44.525176] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000404360 [ 44.525214] R13: 0000000000406160 R14: 0000000000000001 R15: 00007f60096d2000 [ 44.525253] [ 44.525266] Modules linked in: unix_diag netdevsim psample ipt_rpfilter nft_compat nf_tables act_gact cls_flower vxlan cls_bpf sch_ingress xfrm_user l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core sch_fq sctp [last unloaded: psample] [ 44.525355] CR2: 0000000000000858 [ 44.525377] ---[ end trace 0000000000000000 ]--- [ 44.525406] RIP: 0010:macvlan_port_release_mac+0x23/0x220 [ 44.525430] Code: 10 eb d9 0f 1f 40 00 0f 1f 44 00 00 48 81 ec 88 00 00 00 65 48 8b 05 4c a1 6b 01 48 89 84 24 80 00 00 00 48 8b 87 00 01 00 00 80 58 08 00 00 01 74 24 48 8b 10 48 8b 92 58 04 00 00 8b 0a 0f [ 44.525525] RSP: 0018:ff327a93002cf7c0 EFLAGS: 00010286 [ 44.525547] RAX: 0000000000000000 RBX: ff13e985c78a6000 RCX: 0000000000000000 [ 44.525584] RDX: 0000000000000000 RSI: ff13e985c78a6818 RDI: ff13e985c6c2d000 [ 44.525624] RBP: ff13e985c78a6818 R08: ff13e985fed9a338 R09: 0000000000000000 [ 44.525662] R10: 0000000a5cf05dd7 R11: 0000000a5cf05dd7 R12: ff13e985c6c2d000 [ 44.525693] R13: ff13e985c3278400 R14: ff13e985c1e95d00 R15: 0000000000000003 [ 44.525756] FS: 00007f60096d3740(0000) GS:ff13e986707b7000(0000) knlGS:0000000000000000 [ 44.525799] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.525826] CR2: 0000000000000858 CR3: 0000000006c74005 CR4: 0000000000771ef0 [ 44.525884] PKRU: 55555554 [ 44.525915] note: tap[7369] exited with irqs disabled [ 44.526013] tap (7369) used greatest stack depth: 11752 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr