I am running ubuntu 20.04 fully patched along with Asterisk 18.8.0
This is a VM environment with VMWare.

I found this in the logs today.

[1768362.083207] CPU: 2 PID: 1939739 Comm: asterisk Tainted: G
OEL 5.15.0-52-generic #58~20.04.1-Ubuntu
[1768362.083209] call_cpuidle+0x23/0x50
[1768362.083217] do_idle+0x1f4/0x270
[1768362.083222] Hardware name: VMware, Inc. VMware Virtual Platform/440BX
Desktop Reference Platform, BIOS 6.00 11/12/2020
[1768362.083227] cpu_startup_entry+0x20/0x30
[1768362.083230] RIP: 0010:dev_watchdog+0x27a/0x290
[1768362.083234] start_secondary+0x12a/0x180
[1768362.083245] secondary_startup_64_no_verify+0xc2/0xcb
[1768362.083248] Code: eb 97 48 8b 5d d0 c6 05 01 49 6c 01 01 48 89 df e8
6b 78 f9 ff 44 89 e1 48 89 de 48 c7 c7 38 e2 ad a1 48 89 c2 e8 fe 54 19 00
<0f> 0b eb 80 e9 a
[1768362.083259] RSP: 0018:ffffabcb00524e80 EFLAGS: 00010282
[1768362.083262]

[1768362.083550] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[1768362.083558] RIP: 0010:___slab_alloc+0x564/0x860
[1768362.083577] Code: 74 24 48 4c 89 f7 4c 01 e8 48 89 c2 48 0f ca 49 33
96 b8 00 00 00 48 33 10 e8 e8 ef ff ff e9 97 fe ff ff fb 66 0f 1f 44 00 00
8b fe ff ff 65 8b 05 c8 75 8e 5f 48 98 49 8b b4 c6 d8 00 00 00
[1768362.083586] RSP: 0018:ffffabcb053db740 EFLAGS: 00000206
[1768362.083594] RAX: ffff8a5935eb5180 RBX: 0000000000000000 RCX:
00000000034de982
[1768362.083600] RDX: ffff8a58542bda00 RSI: ffffe2f3c550ae00 RDI:
0000000000000200
[1768362.083605] RBP: ffffabcb053db810 R08: 0000000000082cc0 R09:
0000000000000002
[1768362.083610] R10: 00000000ffffffff R11: ffff8a58254eb200 R12:
ffff8a5935eb5160
[1768362.083615] R13: ffff8a58542bd800 R14: ffff8a5800042b00 R15:
0000000000000002
[1768362.083630] ? e1000_xmit_frame+0xa14/0x1180 [e1000]
[1768362.083655] ? __alloc_skb+0x92/0x1e0
[1768362.083668] ? __kmalloc_node_track_caller+0x1d0/0x4e0
[1768362.083676] ? __alloc_skb+0x16c/0x1e0
[1768362.083687] __kmalloc_node_track_caller+0x112/0x4e0
[1768362.083694] ? __alloc_skb+0x92/0x1e0
[1768362.083704] kmalloc_reserve+0x31/0x90
[1768362.083715] __alloc_skb+0x92/0x1e0
[1768362.083725] alloc_skb_with_frags+0x4e/0x1e0
[1768362.083739] sock_alloc_send_pskb+0x207/0x230
[1768362.083751] sock_alloc_send_skb+0x18/0x20
[1768362.083758] __ip_append_data.isra.0+0x7ed/0xe60
[1768362.083774] ? ip_reply_glue_bits+0x50/0x50
[1768362.083787] ? ip_reply_glue_bits+0x50/0x50
[1768362.083799] ip_make_skb+0xd4/0x110
[1768362.083815] udp_sendmsg+0xb74/0xe50
[1768362.083826] ? ip_reply_glue_bits+0x50/0x50
[1768362.083843] ? copyout+0x20/0x40
[1768362.083853] ? __cond_resched+0x19/0x40
[1768362.083863] ? aa_sk_perm+0x43/0x1c0
[1768362.083895] inet_sendmsg+0x6d/0x80
[1768362.083908] ? inet_sendmsg+0x6d/0x80
[1768362.083919] sock_sendmsg+0x62/0x70
[1768362.083929] __sys_sendto+0x113/0x1a0
[1768362.083944] ? exit_to_user_mode_prepare+0x3d/0x1c0
[1768362.083955] ? syscall_exit_to_user_mode+0x27/0x50
[1768362.083967] ? __do_sys_gettid+0x1b/0x30
[1768362.083980] __x64_sys_sendto+0x29/0x40
[1768362.083990] do_syscall_64+0x59/0xc0
[1768362.084000] ? syscall_exit_to_user_mode+0x27/0x50
[1768362.084011] ? __x64_sys_read+0x1a/0x20
[1768362.084020] ? do_syscall_64+0x69/0xc0
[1768362.084027] ? do_syscall_64+0x69/0xc0
[1768362.084035] ? do_syscall_64+0x69/0xc0
[1768362.084042] ? do_syscall_64+0x69/0xc0
[1768362.084050] ? do_syscall_64+0x69/0xc0
[1768362.084057] ? sysvec_apic_timer_interrupt+0x4e/0x90
[1768362.084069] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[1768362.084082] RIP: 0033:0x7fd5ca0028a4
[1768362.084091] Code: c2 f7 ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44
8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05
<48> 3d 00 f0 ff ff 77 30 89 ef 48 89 44 24 08 e8 e8 f7 ff ff 48 8b
[1768362.084098] RSP: 002b:00007fd55ce74b50 EFLAGS: 00000293 ORIG_RAX:
000000000000002c
[1768362.084107] RAX: ffffffffffffffda RBX: 00000000000000ac RCX:
00007fd5ca0028a4
[1768362.084112] RDX: 00000000000000ac RSI: 00007fd54006a36c RDI:
0000000000000104
[1768362.084117] RBP: 0000000000000000 R08: 00007fd55ce74c40 R09:
0000000000000010
[1768362.084130] R10: 0000000000000000 R11: 0000000000000293 R12:
0000000000000000
[1768362.084135] R13: 00007fd4e00287c0 R14: 00007fd4e00287c0 R15:
00007fd55ce74c40
[1768362.084146]
[1768362.084150] —[ end trace 72a16d2ead475475 ]-