{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c3228747107705d47c7e9a03598a434a0380cb73"
            },
            {
              "fixed": "06c69c64686a31783c8bec6495dc22822d38c4ce"
            },
            {
              "fixed": "64ca4cdd1031206424e6455f0ae4fb0560d8f46a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98518.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/dmem: pin VRAM for the whole registered range\n\nCommit c32287471077 (\"gpu/drm/nouveau: enable THP support for GPU memory\nmigration\") grew the device-private region that\nnouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to\nDMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that\nregion at DMEM_CHUNK_SIZE.\n\nnouveau_dmem_page_addr() returns chunk-\u003ebo-\u003eoffset plus the page's offset\nwithin the registered region, so every page past the first chunk resolves\nto VRAM outside the buffer object.\n\nSize the buffer object to the region it backs.",
  "id": "CVE-2026-98518",
  "modified": "2026-10-20T02:30:31.274683478Z",
  "published": "2026-10-18T15:17:36.371Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/06c69c64686a31783c8bec6495dc22822d38c4ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64ca4cdd1031206424e6455f0ae4fb0560d8f46a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98518.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98518"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/nouveau/dmem: pin VRAM for the whole registered range"
}