{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b"
            },
            {
              "fixed": "430ed49a16cf9ca249d0fb51490582090bc4848b"
            },
            {
              "fixed": "80cebb0e8a8d1e758f0d671f5e047279c5c3e528"
            },
            {
              "fixed": "2c7912732184773dbd371a411da87af1cc080b86"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "c5409ce523af40d5c3019717bc5b4f72038d48be"
            },
            {
              "last_affected": "d52acd23a327cada5fb597591267cfc09f08bb1d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.10.220"
            },
            {
              "fixed": "5.11"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.15.154"
            },
            {
              "fixed": "5.16"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89693.json"
  },
  "details": "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 ]",
  "id": "CVE-2026-89693",
  "modified": "2026-09-13T03:30:53.568392743Z",
  "published": "2026-09-11T19:46:12.775Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c7912732184773dbd371a411da87af1cc080b86"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/430ed49a16cf9ca249d0fb51490582090bc4848b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80cebb0e8a8d1e758f0d671f5e047279c5c3e528"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89693.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89693"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "nfsd: check nfsd4_acl_to_attr() return value in nfsd4_create()"
}