Kernel panic in selinux_socket_sock_rcv_skb+0x3e

Issue

• Kernel panic with log as follows:

IPv4: Attempt to release TCP socket in state 10 000000005911e463
BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 9 Comm: ksoftirqd/0 Kdump: loaded Tainted: G        W        --------- -  - 4.18.0-147.32.1.el8_1.x86_64 #1
Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090008  12/07/2018
RIP: 0010:selinux_socket_sock_rcv_skb+0x3e/0x210
RSP: 0018:ffffba3dc18e79b0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000007
RDX: 0000000000000028 RSI: ffff9ddcca39ae00 RDI: ffffba3dc18e79e8
RBP: ffffba3dc18e79e8 R08: 0000000000000000 R09: 000000001108b90a
R10: 0000000000000000 R11: 0000000000000002 R12: ffff9dde3de5b900
R13: 0000000000000028 R14: ffff9ddcb5d58262 R15: ffff9ddcb5d5824e
FS:  0000000000000000(0000) GS:ffff9dde6fa00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 00000001c5e0a001 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ? fib_validate_source+0x9b/0xf0
 ? ip_route_input_slow+0x9cf/0xb10
 security_sock_rcv_skb+0x2a/0x40
 sk_filter_trim_cap+0x47/0x1d0
 tcp_v4_rcv+0xa2e/0xc00
 ip_local_deliver_finish+0x69/0x210
 ip_local_deliver+0x6b/0xe0
 ? ip_rcv_finish+0x410/0x410
 ip_rcv+0x273/0x362
 ? inet_add_protocol.cold.1+0x1e/0x1e
 __netif_receive_skb_core+0xada/0xbd0
 ? inet_gro_receive+0x22a/0x2d0
 netif_receive_skb_internal+0x42/0xf0
 napi_gro_receive+0xba/0xe0
 netvsc_recv_callback+0x182/0x220 [hv_netvsc]
 rndis_filter_receive+0x2ec/0x5c0 [hv_netvsc]
 netvsc_poll+0x375/0x830 [hv_netvsc]
 ? __next_timer_interrupt+0x97/0xc0
 net_rx_action+0x149/0x3b0
 __do_softirq+0xe3/0x30a
 ? sort_range+0x20/0x20
 run_ksoftirqd+0x26/0x40
 smpboot_thread_fn+0xc5/0x160
 kthread+0x112/0x130
 ? kthread_flush_work_fn+0x10/0x10
 ret_from_fork+0x35/0x40