{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.14"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "135cbff90af2ba97d88f1472be595ce78721972c"
            }
          ],
          "repo": "https://github.com/cryptodev-linux/cryptodev-linux",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28529.json"
  },
  "details": "cryptodev-linux version 1.14 and prior contain a page reference handling flaw in the get_userbuf function of the /dev/crypto device driver that allows local users to trigger use-after-free conditions. Attackers with access to the /dev/crypto interface can repeatedly decrement reference counts of controlled pages to achieve local privilege escalation.",
  "id": "CVE-2026-28529",
  "modified": "2026-07-16T03:31:12.590417938Z",
  "published": "2026-03-25T13:00:58.783Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28529.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28529"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/cryptodev-linux-get-userbuf-use-after-free-lpe"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cryptodev-linux/cryptodev-linux/pull/104"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cryptodev-linux/cryptodev-linux"
    },
    {
      "type": "EVIDENCE",
      "url": "https://gist.github.com/n4sm/0fd2479e0c23e0fa2f192cd8fda45750"
    },
    {
      "type": "EVIDENCE",
      "url": "https://nasm.re/posts/cryptodev-linux-vuln/"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "cryptodev-linux \u003c= 1.14 get_userbuf Use After Free LPE"
}