{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a"
            },
            {
              "fixed": "029571d51140650783be4fb98fe7cb4754752086"
            },
            {
              "fixed": "5f8b39452fb16f507c9e4d8b4a83ce27e893307c"
            },
            {
              "fixed": "4d1c3c26c2ab1842e139e61983395d64bd2e518b"
            },
            {
              "fixed": "d6be8e59af412623e3d874be3a048406c0edfe60"
            },
            {
              "fixed": "3f32d52ec604c659725d865cf8cc6a17a33f9c6a"
            },
            {
              "fixed": "8aaa7e317fbd4beb9c6a9f77aa4cf52fae78b117"
            },
            {
              "fixed": "fb0707ce00eef4e2d60c3020e1c0432739703e4a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.15.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.94"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.36"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53136.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Clamp VBIOS HDMI retimer register count to array size\n\n[Why \u0026 How]\nThe VBIOS integrated info tables (v1_11 and v2_1) contain HdmiRegNum and\nHdmi6GRegNum fields that are used as loop bounds when copying retimer I2C\nregister settings into fixed-size arrays (dp*_ext_hdmi_reg_settings[9]\nand dp*_ext_hdmi_6g_reg_settings[3]). These u8 fields are not validated\nbefore use, so a malformed VBIOS can specify values up to 255, causing an\nout-of-bounds heap write during driver probe.\n\nClamp each register count to the destination array size using min_t()\nbefore the copy loops, in both get_integrated_info_v11() and\nget_integrated_info_v2_1().\n\n(cherry picked from commit 5a7f0ef90195940c54b0f5bb85b87da55f038c69)",
  "id": "CVE-2026-53136",
  "modified": "2026-08-12T03:51:32.678649335Z",
  "published": "2026-06-25T08:38:25.097Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/029571d51140650783be4fb98fe7cb4754752086"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f32d52ec604c659725d865cf8cc6a17a33f9c6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d1c3c26c2ab1842e139e61983395d64bd2e518b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f8b39452fb16f507c9e4d8b4a83ce27e893307c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8aaa7e317fbd4beb9c6a9f77aa4cf52fae78b117"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6be8e59af412623e3d874be3a048406c0edfe60"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb0707ce00eef4e2d60c3020e1c0432739703e4a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53136.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53136"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/amd/display: Clamp VBIOS HDMI retimer register count to array size"
}