{
  "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-2026-74750",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74750",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-26T14:36:58.355Z",
    "updatedAt": "2026-10-15T10:09:31.165Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "ovpn: defer key slot crypto freeing to workqueue",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\novpn: defer key slot crypto freeing to workqueue\n\nKey slots are released through a kref and the existing release path\nfrees the AEAD transforms from an RCU callback. That is not safe for all\ncrypto implementations: crypto_free_aead can sleep, for example when an\nasync or hardware implementation has teardown work to complete.\n\nUse queue_rcu_work for key-slot release. This keeps the RCU grace period\nneeded by lockless key-slot readers, but runs the actual crypto teardown\nfrom workqueue context where sleeping is allowed. Once the rcu_work\ncallback runs, pre-existing RCU readers are gone, and the final kref put\nalready proves that no transform user remains, so the worker can release\nthe AEAD transforms and free the slot directly.\n\nThe previous patch drains ovpn_wq during module exit, so queued key-slot\nteardown work cannot outlive module text.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8534731dbf2d52a539b94defd06d2a8d3514aacb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5cea365559449f2149ab724d33d406e3ec4c00c9"
            },
            {
              "version": "8534731dbf2d52a539b94defd06d2a8d3514aacb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0f77ed5ee91946ea63e29f2e0ff9dc9e722d8da3"
            },
            {
              "version": "8534731dbf2d52a539b94defd06d2a8d3514aacb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2da3dfa1ddfe55a065f484750c83660e3bd4ac00"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.16"
            },
            {
              "version": "6.18.57",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}