Medium severity5.5NVD Advisory· Published Jun 24, 2026· Updated Jul 14, 2026
CVE-2026-53001
CVE-2026-53001
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: xtables: restrict several matches to inet family
This is a partial revert of:
commit ab4f21e6fb1c ("netfilter: xtables: use NFPROTO_UNSPEC in more extensions")
to allow ipv4 and ipv6 only.
- xt_mac
- xt_owner
- xt_physdev
These extensions are not used by ebtables in userspace.
Moreover, xt_realm is only for ipv4, since dst->tclassid is ipv4 specific.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/14203f9edf944b3fb63faadd62f38452421ecdfcnvdPatch
- git.kernel.org/stable/c/689a91ff18d6448d94c1ab7c076fecdb2b668befnvdPatch
- git.kernel.org/stable/c/76160e04440c9698b989dbd9492a7ec4f520c9eenvdPatch
- git.kernel.org/stable/c/7eaf9c740f33230cb224dc265f3c69f8531ff57bnvdPatch
- git.kernel.org/stable/c/9a109751b297b0f2135495749ef5a18ba31ec7d4nvdPatch
- git.kernel.org/stable/c/b6fe26f86a1649f84e057f3f15605b08eda15497nvdPatch
- git.kernel.org/stable/c/cbeb259f31382de70a70a59ffd0e66f5e80d9818nvdPatch
- git.kernel.org/stable/c/fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9nvdPatch
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