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CVE-2025-38721 netfilter: ctnetlink: fix refcount leak on table dump

🗓️ 04 Sep 2025 15:33:14Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

CVE-2025-38721 fixes a refcount leak in netfilter ctnetlink during table dump, preventing conntrack cleanup.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nf_conntrack_netlink.c"
    ],
    "versions": [
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "586892e341fbf698e7cbaca293e1353957db725a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "962518c6ca9f9a13df099cafa429f72f68ad61f0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "19b909a4b1452fb97e477d2f08b97f8d04095619",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "41462f4cfc583513833f87f9ee55d12da651a7e3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "30cf811058552b8cd0e98dff677ef3f89d6d34ce",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "a2cb4df7872de069f809de2f076ec8e54d649fe3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "e14f72aa66c029db106921d621edcedef68e065b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "a62d6aa3f31f216b637a4c71b7a8bfc7c57f049b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d205dc40798d97d63ad348bfaf7394f445d152d4",
        "lessThan": "de788b2e6227462b6dcd0e07474e72c089008f74",
        "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/netfilter/nf_conntrack_netlink.c"
    ],
    "versions": [
      {
        "version": "2.6.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.297",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.241",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.190",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.149",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.103",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.43",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.15.11",
        "lessThanOrEqual": "6.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.2",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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