{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-97554",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-97554",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-25T10:21:45.851Z",
    "updatedAt": "2026-10-21T12:53:14.914Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "smb: client: avoid using uninitialized SIDs in cifs_posix_to_fattr()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: avoid using uninitialized SIDs in cifs_posix_to_fattr()\n\ncifs_posix_to_fattr() ignores the return value of posix_info_parse().\nWhen a malformed POSIX directory entry is encountered (e.g. invalid\nSID lengths from an untrusted server), posix_info_parse() returns -1\nwithout populating the 'parsed' struct.  The uninitialized stack\nmemory in parsed.owner and parsed.group is then passed to\nsid_to_id(), which processes the garbage bytes and passes them to\nrequest_key() to construct a SID string, potentially leaking kernel\nstack contents to the userspace idmap daemon.\n\nFix this by checking the return value and skipping the SID-to-id\nmapping when parsing fails.  The remaining fattr fields (timestamps,\nmode, etc.) are populated directly from the 'info' pointer so they\nare unaffected.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9934430e2178d5164eb1ac91a9b092f9e7e64745",
              "status": "affected",
              "versionType": "git",
              "lessThan": "604feb3e8141bf11f5afd48d36d401fee5af9536"
            },
            {
              "version": "9934430e2178d5164eb1ac91a9b092f9e7e64745",
              "status": "affected",
              "versionType": "git",
              "lessThan": "33106019c3be57b5fc6411cfaad6d98214a51265"
            },
            {
              "version": "9934430e2178d5164eb1ac91a9b092f9e7e64745",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2be31f252ade791b84f7164991f14436aed1d4b9"
            },
            {
              "version": "9934430e2178d5164eb1ac91a9b092f9e7e64745",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c9a8b60ce140a68d172452f418137fc7ddbae7db"
            },
            {
              "version": "9934430e2178d5164eb1ac91a9b092f9e7e64745",
              "status": "affected",
              "versionType": "git",
              "lessThan": "da6e25842431982d5a53cf00d925b98c690f4467"
            },
            {
              "version": "dd80b98bdf0a4b3206739f3513b0518f27a7b4ef",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "d8e39c11f66125f49de55537a6efc8ecadf4a0f7",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.8.17",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.9"
            },
            {
              "version": "5.9.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.10"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.114",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.57",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}