{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f6226ae7a0cd47aaa9175aca6a1e19600f884cbf"
            },
            {
              "fixed": "61fb3cca40ff938671474f4a16adb908c19032d7"
            },
            {
              "fixed": "43a31142e1d22b3cf5490bd94a94db7196901734"
            },
            {
              "fixed": "59aed1eb60d70678a53acccb0cb337a26ce6680e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.45"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80735.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\novpn: ensure socket is owned by ovpn before deref sk_user_data\n\nSome subsystems, like BPF SOCKMAP, set sk_user_data without\nactually setting the encap_type.\n\nFor this reason, we must make sure that the type is the\none ovpn expects before dereferencing sk_user_data.\n\nFailing to do so may lead to out-of-bounds reads.",
  "id": "CVE-2026-80735",
  "modified": "2026-09-05T03:31:04.487762874Z",
  "published": "2026-09-03T08:21:51.344Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/43a31142e1d22b3cf5490bd94a94db7196901734"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59aed1eb60d70678a53acccb0cb337a26ce6680e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61fb3cca40ff938671474f4a16adb908c19032d7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80735.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80735"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ovpn: ensure socket is owned by ovpn before deref sk_user_data"
}