{
  "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-2025-40103",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40103",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-30T09:48:08.421Z",
    "updatedAt": "2026-05-11T21:42:34.498Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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: Fix refcount leak for cifs_sb_tlink",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Fix refcount leak for cifs_sb_tlink\n\nFix three refcount inconsistency issues related to `cifs_sb_tlink`.\n\nComments for `cifs_sb_tlink` state that `cifs_put_tlink()` needs to be\ncalled after successful calls to `cifs_sb_tlink()`. Three calls fail to\nupdate refcount accordingly, leading to possible resource leaks.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8ceb984379462f94bdebef3288d569c6e1f912ea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d3c8ea197055c260119a13360e8202a27e53e1e4"
            },
            {
              "version": "8ceb984379462f94bdebef3288d569c6e1f912ea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "790282abe9d805f08618c1c24ea2529e7259b692"
            },
            {
              "version": "8ceb984379462f94bdebef3288d569c6e1f912ea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d7dd034c14928306db1b46be277ae439b84dacf9"
            },
            {
              "version": "8ceb984379462f94bdebef3288d569c6e1f912ea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e15605b68b490186da2ad8029c0351a9cfb0b9af"
            },
            {
              "version": "8ceb984379462f94bdebef3288d569c6e1f912ea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "896bb31e1416f582503db1350cf1bd10dc64e5a6"
            },
            {
              "version": "8ceb984379462f94bdebef3288d569c6e1f912ea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c2b77f42205ef485a647f62082c442c1cd69d3fc"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.7"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.114",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.55",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}