{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4e4ddd47774313accc86b233d6ca2c6a9037a671"
            },
            {
              "fixed": "036e16ada95389bdc30f41068af04c1d0872fad0"
            },
            {
              "fixed": "d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7"
            },
            {
              "fixed": "7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6"
            },
            {
              "fixed": "9759da60e38d7b9db44dc92713e4e0391883d221"
            },
            {
              "fixed": "f4f1db96bfd68b81053693ba53405b6f510ac16c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.33"
            },
            {
              "fixed": "6.6.151"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "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-2026-74443.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: bound DMA command body size against suffix pointer\n\nvmw_cmd_dma() locates the DMA suffix at\n\n\t(unsigned long) \u0026cmd-\u003ebody + header-\u003esize - sizeof(*suffix)\n\nwithout checking that header-\u003esize is large enough to contain both\ncmd-\u003ebody and the suffix.  An undersized header makes the suffix\npointer underflow back into the previous command in the bounce\nbuffer.  The verifier later writes suffix-\u003emaximumOffset, clobbering\nverified fields of an already-relocated earlier command -- a TOCTOU\non the device-visible command stream that lets one command rewrite\nanother's GMR id, surface id, or other authenticated fields.\n\nReject the command if the body is too small for the suffix to fit.",
  "id": "CVE-2026-74443",
  "modified": "2026-08-17T03:36:15.769376092Z",
  "published": "2026-08-15T12:26:50.826Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/036e16ada95389bdc30f41068af04c1d0872fad0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9759da60e38d7b9db44dc92713e4e0391883d221"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4f1db96bfd68b81053693ba53405b6f510ac16c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74443.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74443"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/vmwgfx: bound DMA command body size against suffix pointer"
}