netfilter: xtables: restrict several matches to inet family

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Summary

CVECVE-2026-53001
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-24 17:17:11 UTC
Updated2026-07-14 20:09:09 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001760000 probability, percentile 0.073330000 (date 2026-07-13)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd 14203f9edf944b3fb63faadd62f38452421ecdfc git Not specified
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd 7eaf9c740f33230cb224dc265f3c69f8531ff57b git Not specified
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd 9a109751b297b0f2135495749ef5a18ba31ec7d4 git Not specified
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd cbeb259f31382de70a70a59ffd0e66f5e80d9818 git Not specified
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd 689a91ff18d6448d94c1ab7c076fecdb2b668bef git Not specified
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd 76160e04440c9698b989dbd9492a7ec4f520c9ee git Not specified
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9 git Not specified
CNA Linux Linux affected ab4f21e6fb1c09b13c4c3cb8357babe8223471bd b6fe26f86a1649f84e057f3f15605b08eda15497 git Not specified
CNA Linux Linux affected 2.6.28 Not specified
CNA Linux Linux unaffected 2.6.28 semver Not specified
CNA Linux Linux unaffected 5.10.258 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.209 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.175 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.141 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.91 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7eaf9c740f33230cb224dc265f3c69f8531ff57b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/76160e04440c9698b989dbd9492a7ec4f520c9ee 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/cbeb259f31382de70a70a59ffd0e66f5e80d9818 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b6fe26f86a1649f84e057f3f15605b08eda15497 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/14203f9edf944b3fb63faadd62f38452421ecdfc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9a109751b297b0f2135495749ef5a18ba31ec7d4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/689a91ff18d6448d94c1ab7c076fecdb2b668bef 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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