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CVE-2026-89714 NFS: fix delegation_hash_table leak when nfs4_server_common_setup() fails

🗓️ 11 Sep 2026 19:46:28Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 48 Views

Linux NFSv4 client leaks delegation hash table on failed mount, causing unbounded memory leak.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfs/nfs4client.c"
    ],
    "versions": [
      {
        "version": "f5b3108e6a14418b120a3c38ca589b8d6cf87627",
        "lessThan": "f3adf1643517357221422c05986d6de5df7b9913",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f5b3108e6a14418b120a3c38ca589b8d6cf87627",
        "lessThan": "0fd2b9687dae36be5b84eab39b4c627bb7ab33b3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f5b3108e6a14418b120a3c38ca589b8d6cf87627",
        "lessThan": "2092f5b38f88be306140c77aeeeb43fc1adacacc",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfs/nfs4client.c"
    ],
    "versions": [
      {
        "version": "6.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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