Kernel issues Ubuntu 18.04 LTS

[J Doe]

Hello,

I updated an older Ubuntu 18.04.6 LTS server today (June 1, 2023), via: 
sudo apt upgrade and upon reboot I am seeing crashes in the kernel.  It 
appears to be related to networking (/net/core/stream.c), and yet this 
server is still serving web pages successfully.

Debugging information
=====================

$ uname -ar

Linux server 4.15.0-212-generic #223-Ubuntu SMP Tue May 23 13:09:22 UTC 
2023 x86_64 x86_64 x86_64 GNU/Linux

syslog (abbreviated):

Jun  1 18:25:47 server kernel: [  334.057351] ------------[ cut here 
]------------
Jun  1 18:25:47 server kernel: [  334.057383] WARNING: CPU: 1 PID: 1916 
at /build/linux-Oi1dQn/linux-4.15.0/net/core/stream.c:212 
sk_stream_kill_queues+0xed/0x110
Jun  1 18:25:47 server kernel: [  334.057383] Modules linked in: 
ip6table_filter ip6_tables iptable_filter binfmt_misc nf_log_ipv6 
nf_conntrack_ipv6 nf_defrag_ipv6 intel_rapl_perf input_leds nf_log_ipv4 
nf_log_common joydev nft_log serio_raw qemu_fw_cfg mac_hid 
nf_conntrack_ipv4 nf_defrag_ipv4 nft_ct nf_conntrack nft_meta 
nft_set_bitmap nft_set_hash nft_set_rbtree nf_tables_ipv6 nf_tables_ipv4 
sch_fq_codel ib_iser rdma_cm iw_cm ib_cm nf_tables ib_core iscsi_tcp 
nfnetlink libiscsi_tcp libiscsi scsi_transport_iscsi virtio_rng 
ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg 
dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq 
async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear 
hid_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc 
aesni_intel aes_x86_64 crypto_simd glue_helper
Jun  1 18:25:47 server kernel: [  334.057424]  cryptd psmouse usbhid hid 
cirrus ttm drm_kms_helper virtio_blk syscopyarea sysfillrect sysimgblt 
fb_sys_fops drm i2c_piix4 virtio_net pata_acpi floppy
Jun  1 18:25:47 server kernel: [  334.057433] CPU: 1 PID: 1916 Comm: 
python3 Tainted: G        W        4.15.0-212-generic #223-Ubuntu

I would appreciate any feedback.

Thanks,

- J