Searching in the forum posts for “kfence use after free” came up with this thread from beginning of this year.
https://community.ipfire.org/t/bug-kfence-use-after-free-read-in-ipt-do-t/6888
where a kernel update gave an increased number of driver issues. For many people that was solved with the upgrade to kernel 5.15.35 in Core Update 167 but some people still reported problems with their NICs so likely that kernel update did not fix all the driver issues.
The plan is to squeeze a kernel update into Core Update 171 to hopefully fix the ASIX USB issue.
Maybe that new kernel will also have further fixes for the KFENCE use after free bug.