{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1a148af06000e545e714fe3210af3d77ff903c11"
            },
            {
              "fixed": "291a77604858a8b47cf6640a12b76e97f99e00ed"
            },
            {
              "fixed": "6d496e9569983a0d7a05be6661126d0702cf94f7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.15.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38669.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"drm/gem-shmem: Use dma_buf from GEM object instance\"\n\nThis reverts commit 1a148af06000e545e714fe3210af3d77ff903c11.\n\nThe dma_buf field in struct drm_gem_object is not stable over the\nobject instance's lifetime. The field becomes NULL when user space\nreleases the final GEM handle on the buffer object. This resulted\nin a NULL-pointer deref.\n\nWorkarounds in commit 5307dce878d4 (\"drm/gem: Acquire references on\nGEM handles for framebuffers\") and commit f6bfc9afc751 (\"drm/framebuffer:\nAcquire internal references on GEM handles\") only solved the problem\npartially. They especially don't work for buffer objects without a DRM\nframebuffer associated.\n\nHence, this revert to going back to using .import_attach-\u003edmabuf.\n\nv3:\n- cc stable",
  "id": "CVE-2025-38669",
  "modified": "2026-07-08T05:38:22.292739013Z",
  "published": "2025-08-22T16:03:00.399Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/291a77604858a8b47cf6640a12b76e97f99e00ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d496e9569983a0d7a05be6661126d0702cf94f7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38669.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38669"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Revert \"drm/gem-shmem: Use dma_buf from GEM object instance\""
}