{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b4b01b4995fb15b55a2d067eb405917f5ab32709"
            },
            {
              "fixed": "9fc2a017c5d597937e0c28b9a9669844aa796c42"
            },
            {
              "fixed": "2757e6e803092cf0aeaf4b735e16b5d3bdc705c5"
            },
            {
              "fixed": "35be0e2c6862abcd5e5f5445261f1fd910d4a9b4"
            },
            {
              "fixed": "375c1934ef0196d3b6d3a1eae3232bef8dae7bf7"
            },
            {
              "fixed": "4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68255.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: bound EDID block reads to the response buffer\n\nvirtio_get_edid_block() validates the read offset only against the\ndevice-supplied resp-\u003esize field, never against the fixed-size resp-\u003eedid\narray. The EDID block index is driven by the device-supplied extension\ncount, so a malicious virtio-gpu backend can advertise a large size\ntogether with a high block count and read far past the array into adjacent\nkernel memory, which is then surfaced in the parsed EDID (an out-of-bounds\nread / info leak).\n\nAlso reject any read whose end exceeds the size of the edid array.\nConforming EDID responses stay within the array and are unaffected.",
  "id": "CVE-2026-68255",
  "modified": "2026-08-12T03:51:29.125103927Z",
  "published": "2026-08-10T12:01:24.835Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2757e6e803092cf0aeaf4b735e16b5d3bdc705c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35be0e2c6862abcd5e5f5445261f1fd910d4a9b4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/375c1934ef0196d3b6d3a1eae3232bef8dae7bf7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fc2a017c5d597937e0c28b9a9669844aa796c42"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68255.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68255"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/virtio: bound EDID block reads to the response buffer"
}