CVE-2026-72320
CRITICAL
INFO
Priority: 0.05
BB Relevance:
78/100
Published: 2026-08-15
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
None
Description
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().
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | aaa31047a6d25da0fa101da1ed544e1247949b40 < 87ff022a58788ff4a25cf2c609b9abae418c9323 |
| Linux | Linux | aaa31047a6d25da0fa101da1ed544e1247949b40 < 65d35cb555f40529a9edc6bf4beaa3bee917f015 |
| Linux | Linux | aaa31047a6d25da0fa101da1ed544e1247949b40 < 0ab8880865f9678eb6174e72c1fc4712e44c745c |
| Linux | Linux | aaa31047a6d25da0fa101da1ed544e1247949b40 < 238c612357b5a25f03eacf356f95034f8551f218 |
| Linux | Linux | aaa31047a6d25da0fa101da1ed544e1247949b40 < ef0c7d4b04a0e6ad175323c24bc84e11470dd79d |
| Linux | Linux | aaa31047a6d25da0fa101da1ed544e1247949b40 < e6107a4c74b54cb33e3bce162a63048ae5a6b198 |
| Linux | Linux | 5.13 |