{
  "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-2025-68299",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-68299",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-16T15:06:18.246Z",
    "updatedAt": "2026-08-03T09:32:28.315Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "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": "afs: Fix delayed allocation of a cell's anonymous key",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix delayed allocation of a cell's anonymous key\n\nThe allocation of a cell's anonymous key is done in a background thread\nalong with other cell setup such as doing a DNS upcall.  In the reported\nbug, this is triggered by afs_parse_source() parsing the device name given\nto mount() and calling afs_lookup_cell() with the name of the cell.\n\nThe normal key lookup then tries to use the key description on the\nanonymous authentication key as the reference for request_key() - but it\nmay not yet be set and so an oops can happen.\n\nThis has been made more likely to happen by the fix for dynamic lookup\nfailure.\n\nFix this by firstly allocating a reference name and attaching it to the\nafs_cell record when the record is created.  It can share the memory\nallocation with the cell name (unfortunately it can't just overlap the cell\nname by prepending it with \"afs@\" as the cell name already has a '.'\nprepended for other purposes).  This reference name is then passed to\nrequest_key().\n\nSecondly, the anon key is now allocated on demand at the point a key is\nrequested in afs_request_key() if it is not already allocated.  A mutex is\nused to prevent multiple allocation for a cell.\n\nThirdly, make afs_request_key_rcu() return NULL if the anonymous key isn't\nyet allocated (if we need it) and then the caller can return -ECHILD to\ndrop out of RCU-mode and afs_request_key() can be called.\n\nNote that the anonymous key is kind of necessary to make the key lookup\ncache work as that doesn't currently cache a negative lookup, but it's\nprobably worth some investigation to see if NULL can be used instead.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fa4ccdccf1489a6dac4369a8c69f11b455b3355c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bd18d2cbc9377c6b270c0b7ea44b0e6ed1d99c07"
            },
            {
              "version": "7e33b15d5a6578a99ebf189cea34983270ae92dd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5613bde937dfac6725e9c3fc766b9d6b8481e55b"
            },
            {
              "version": "330e2c514823008b22e6afd2055715bc46dd8d55",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d27c71257825dced46104eefe42e4d9964bd032e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6.17.9",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.17.11"
            }
          ]
        }
      ]
    }
  }
}