Comment 2 for bug 2006397

This issue only impacts linux-bluefield/focal because it uniquely included a backport of upstream commit 339706bc21c1 ("netfilter: nft_lookup: update element stateful expression") from v5.7-rc1 without these follow up fixes that also landed in upstream before v5.7 final:

24791b9aa1ab0 netfilter: nft_set_bitmap: initialize set element extension in lookups
a26c1e49c8e97 netfilter: nf_tables: do not update stateful expressions if lookup is inverted

It impacts all linux-bluefield/focal kernels since the initial version, 5.4.0-1001.2 and is resolved in 5.4.0-1058.64.