{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c"
            },
            {
              "fixed": "893db20383800cfe92e638705984eebb13bc81a5"
            },
            {
              "fixed": "a07430abd556de3707adfcadcc60db3fa64e4b2b"
            },
            {
              "fixed": "a6d7065b91a14790980ce6f4960db0ca8c3c9940"
            },
            {
              "fixed": "7eebef042c12dfe0568593ee6a8926d16505925e"
            },
            {
              "fixed": "00c311a13d225266800c712f2b7db2711c6897de"
            },
            {
              "fixed": "186bfdc4e26d019b2e7570cb121964a1d89b2e5b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "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-2026-68108.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vce: fix integer overflow in image size\n\nFix a security vulnerability where malicious VCE command streams\nwith oversized dimensions (e.g. 65536×65536) cause 32-bit integer\noverflow, wrapping the calculated buffer size to 0. This bypasses\nvalidation and allows GPU firmware to perform out-of-bound memory\naccess.\n\nThe fix uses 64-bit arithmetic to detect overflow and rejects\ninvalid dimensions before they reach the hardware.\n\nV2: remove redundant check\nV3: modify max height value\nV4: remove size64\n\n(cherry picked from commit cbe408dba581755ad1279a487ec786d8927d778d)",
  "id": "CVE-2026-68108",
  "modified": "2026-08-21T03:30:21.432466113Z",
  "published": "2026-08-10T11:58:25.241Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00c311a13d225266800c712f2b7db2711c6897de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/186bfdc4e26d019b2e7570cb121964a1d89b2e5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7eebef042c12dfe0568593ee6a8926d16505925e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/893db20383800cfe92e638705984eebb13bc81a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a07430abd556de3707adfcadcc60db3fa64e4b2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6d7065b91a14790980ce6f4960db0ca8c3c9940"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68108.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68108"
    },
    {
      "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:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/amdgpu/vce: fix integer overflow in image size"
}