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CVE-2026-23231

🗓️ 04 Mar 2026 12:58:42Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 85 Views🌐 WEB

Fix use-after-free in nf_tables_addchain by synchronizing read copy update before chain destruction.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange3.166.1.165
linuxlinux_kernelRange6.26.6.128
linuxlinux_kernelRange6.76.12.75
linuxlinux_kernelRange6.136.18.14
linuxlinux_kernelRange6.196.19.4
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nf_tables_api.c"
    ],
    "versions": [
      {
        "version": "91c7b38dc9f0de4f7f444b796d14476bc12df7bc",
        "lessThan": "2a6586ecfa4ce1413daaafee250d2590e05f1a33",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "91c7b38dc9f0de4f7f444b796d14476bc12df7bc",
        "lessThan": "7017745068a9068904e1e7a1b170a5785647cc81",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "91c7b38dc9f0de4f7f444b796d14476bc12df7bc",
        "lessThan": "f3fe58ce37926a10115ede527d59b91bcc05400a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "91c7b38dc9f0de4f7f444b796d14476bc12df7bc",
        "lessThan": "dbd0af8083dd201f07c49110b2ee93710abdff28",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "91c7b38dc9f0de4f7f444b796d14476bc12df7bc",
        "lessThan": "2f9a4ffeb763aec822f8ff3d1e82202d27d46d4b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "91c7b38dc9f0de4f7f444b796d14476bc12df7bc",
        "lessThan": "71e99ee20fc3f662555118cf1159443250647533",
        "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_tables_api.c"
    ],
    "versions": [
      {
        "version": "3.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.165",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.14",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.4",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
71e99ee20fc3f662555118cf1159443250647533pathgit.kernel.org/stable/c/71e99ee20fc3f662555118cf1159443250647533Linux nf_tables use-after-free in nf_tables_addchain() due to missing synchronize_rcu between delete and destroy paths; patch adds synchronize_rcu to prevent UAF.CWE-416

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05 Aug 2026 12:20Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.8
EPSS0.00788
SSVC
85