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CVE-2026-52927 netfilter: ebtables: fix OOB read in compat_mtw_from_user

🗓️ 24 Jun 2026 07:14:20Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 45 Views

Fixes out-of-bounds read in compat_mtw_from_user when converting ebtables extensions from user space.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bridge/netfilter/ebtables.c"
    ],
    "versions": [
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "d7a8fb6f10d55a1c37b0bf8c20cca24dffd76e00",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "21af4c030567d2e6c89bb927bc18b51fba52a400",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "dad9ebf8107955bb54bd3f9cf22591b6ff37bac1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "a27cb7325a6c69970041c7f8541fafed5a1ea3ec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "7ad0e463fc7eafae2141cc38054264636f8b3e94",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "bf8e8eac7ede51dc318e06acef5a896dcbba7595",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "fcc4c043d137e7f1de4673dba1f3116e45377c67",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81e675c227ec60a0bdcbb547dc530ebee23ff931",
        "lessThan": "f438d1786d657d57790c5d138d6db3fc9fdac392",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bridge/netfilter/ebtables.c"
    ],
    "versions": [
      {
        "version": "2.6.34",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.34",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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