{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a"
            },
            {
              "fixed": "074db6db03a0aaa78f05ca9d4838053713796665"
            },
            {
              "fixed": "7b03312491f9fe6ba4d60c4023e7e61d2d1fed96"
            },
            {
              "fixed": "75597e8774f319152744d24e0683d9393540a951"
            },
            {
              "fixed": "cc42fb40171c249bb859071d81b4eb007398a0bc"
            },
            {
              "fixed": "bbbac12083eff489b35d848332f0dff311131344"
            },
            {
              "fixed": "23b8b188cb32e5531d0f8d3af9506f8959cb369e"
            },
            {
              "fixed": "a9e886f73dd717027028bb7e3bbca93601ecdfc7"
            },
            {
              "fixed": "39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "f60b0fa8bbddde66f1d197be07120264b555c84a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3.12.44"
            },
            {
              "fixed": "3.13"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64306.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: drbg - Fix returning success on failure in CTR_DRBG\n\ndrbg_ctr_generate() sometimes returns success when it fails, leaving the\noutput buffer uninitialized.  Fix it.",
  "id": "CVE-2026-64306",
  "modified": "2026-07-27T03:56:20.284322438Z",
  "published": "2026-07-25T08:49:40.153Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/074db6db03a0aaa78f05ca9d4838053713796665"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23b8b188cb32e5531d0f8d3af9506f8959cb369e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75597e8774f319152744d24e0683d9393540a951"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b03312491f9fe6ba4d60c4023e7e61d2d1fed96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9e886f73dd717027028bb7e3bbca93601ecdfc7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbbac12083eff489b35d848332f0dff311131344"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc42fb40171c249bb859071d81b4eb007398a0bc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64306.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64306"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "crypto: drbg - Fix returning success on failure in CTR_DRBG"
}