CVE-2026-89693 (GCVE-0-2026-89693)
Vulnerability from cvelistv5
Published
2026-09-11 19:46
Modified
2026-10-21 12:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: nfsd: check nfsd4_acl_to_attr() return value in nfsd4_create() nfsd4_create() stores the return value of nfsd4_acl_to_attr() in status, but the switch(create->cr_type) block unconditionally overwrites it in every branch. ACL translation errors are silently discarded, and the CREATE proceeds without the requested ACL. Add an early exit check after nfsd4_acl_to_attr(), matching the pattern already used in nfsd4_setattr(). [ cel: prefer NFS4ERR_BADTYPE over NFS4ERR_ATTRNOTSUPP ]
References
Impacted products
Vendor Product Version
Linux Linux Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b
Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b
Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b
Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b
Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b
Version: c5409ce523af40d5c3019717bc5b4f72038d48be
Version: d52acd23a327cada5fb597591267cfc09f08bb1d
Version: 5.10.220   ≤
Version: 5.15.154   ≤
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{
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              "version": "7.3",
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: check nfsd4_acl_to_attr() return value in nfsd4_create()\n\nnfsd4_create() stores the return value of nfsd4_acl_to_attr() in\nstatus, but the switch(create-\u003ecr_type) block unconditionally\noverwrites it in every branch. ACL translation errors are silently\ndiscarded, and the CREATE proceeds without the requested ACL.\n\nAdd an early exit check after nfsd4_acl_to_attr(), matching the\npattern already used in nfsd4_setattr().\n\n[ cel: prefer NFS4ERR_BADTYPE over NFS4ERR_ATTRNOTSUPP ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:48:22.277Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2d8a8ed4f9d8637ef0f18d47d19193e7b780e90e"
        },
        {
          "url": "https://git.kernel.org/stable/c/26877d3a09afb3838a053867a655ca30c46a1f81"
        },
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          "url": "https://git.kernel.org/stable/c/430ed49a16cf9ca249d0fb51490582090bc4848b"
        },
        {
          "url": "https://git.kernel.org/stable/c/80cebb0e8a8d1e758f0d671f5e047279c5c3e528"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c7912732184773dbd371a411da87af1cc080b86"
        }
      ],
      "title": "nfsd: check nfsd4_acl_to_attr() return value in nfsd4_create()",
      "x_generator": {
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      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89693",
    "datePublished": "2026-09-11T19:46:12.775Z",
    "dateReserved": "2026-09-11T19:38:34.749Z",
    "dateUpdated": "2026-10-21T12:48:22.277Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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