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netfilter: xtables: restrict several matches to inet family

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-53001

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-53001

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "14203f9edf944b3fb63faadd62f38452421ecdfc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "7eaf9c740f33230cb224dc265f3c69f8531ff57b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "9a109751b297b0f2135495749ef5a18ba31ec7d4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "cbeb259f31382de70a70a59ffd0e66f5e80d9818",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "689a91ff18d6448d94c1ab7c076fecdb2b668bef",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "76160e04440c9698b989dbd9492a7ec4f520c9ee",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ab4f21e6fb1c09b13c4c3cb8357babe8223471bd",
        "lessThan": "b6fe26f86a1649f84e057f3f15605b08eda15497",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/netfilter/xt_mac.c",
      "net/netfilter/xt_owner.c",
      "net/netfilter/xt_physdev.c",
      "net/netfilter/xt_realm.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.28"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.28",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.258",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.209",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.175",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.141",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.91",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.33",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.10",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/netfilter/xt_mac.c",
      "net/netfilter/xt_owner.c",
      "net/netfilter/xt_physdev.c",
      "net/netfilter/xt_realm.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-53001

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#28424 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-53001 · Revision 1Source updated