CVE-2026-72320

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_lookup: fix catchall element handling with inverted lookups

nft_lookup_eval() decides whether a lookup matched (`found`) from the

direct set lookup and priv->invert before falling back to the

catchall element used by interval sets (e.g. nft_set_rbtree) for the

open-ended default range. Since `found` is never recomputed after

`ext` is replaced by the catchall lookup, inverted lookups

(NFT_LOOKUP_F_INV, "!= @set") can wrongly match or wrongly skip the

catchall element, producing the wrong verdict. Fold the catchall

lookup into `ext` before computing `found`, matching the order

already used by nft_objref_map_eval().