{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2718d91816eeed03c09c8abe872e45f59078768c"
            },
            {
              "fixed": "0e57165ca025a67d8dfd17efd2765fdd4925fdab"
            },
            {
              "fixed": "2a761b9be5863e1d26a584f0c2d1e114a684ed9a"
            },
            {
              "fixed": "7f4674d986c15c74327cb6ac6e2e2afecf061e04"
            },
            {
              "fixed": "a3caaa06809248b996254be5b47e10804a3494e2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74452.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: reject firmware sections with oversized data\n\nIn panthor_fw_load_section_entry(), the data size to copy is calculated\nwithout validating it against the allocated section_size:\n\n    section-\u003edata.size = hdr.data.end - hdr.data.start;\n\nIf a crafted firmware sets data.size larger than the allocated memory,\nthis could cause a heap buffer overflow in panthor_fw_init_section_mem()\n\n    memcpy(section-\u003emem-\u003ekmap, section-\u003edata.buf, section-\u003edata.size);\n\nAdditionally, if the section-\u003edata.size exceeds the BO size, could this\nmemset underflow the size calculation, leading to a massive out-of-bounds\nzeroing of kernel memory?\n\n    memset(section-\u003emem-\u003ekmap + section-\u003edata.size, 0,\n           panthor_kernel_bo_size(section-\u003emem) - section-\u003edata.size);\n\nReject section entries whose initial data is larger than the section size.",
  "id": "CVE-2026-74452",
  "modified": "2026-08-18T03:31:20.892981721Z",
  "published": "2026-08-15T12:26:56.331Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e57165ca025a67d8dfd17efd2765fdd4925fdab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a761b9be5863e1d26a584f0c2d1e114a684ed9a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f4674d986c15c74327cb6ac6e2e2afecf061e04"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3caaa06809248b996254be5b47e10804a3494e2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74452.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74452"
    },
    {
      "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:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/panthor: reject firmware sections with oversized data"
}