{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "65981f7681abdf92b25942222b629b9c512d0705"
            },
            {
              "fixed": "619c3cfa88e09603a13d918f754808db2dda7057"
            },
            {
              "fixed": "c1c22fca0a0896a452a7cb92422d67babd65b4be"
            },
            {
              "fixed": "a1e972fa94c3a8069e022c67b9d97c7aa7b05293"
            },
            {
              "fixed": "a8434b145b1e467940334c58c00af241e9494c5f"
            },
            {
              "fixed": "4df39eb99bb47d1f24d1952c23b21b10988356bf"
            },
            {
              "fixed": "f739416dc555fa205a785e5135d73fa39b26f35d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.13.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "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/2026/80xxx/CVE-2026-80888.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: drop dma_buf reference on foreign-fd prime import\n\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd's\ndma_buf-\u003eops do not match the ttm_object_device's ops, but does so\nwithout releasing the reference acquired by dma_buf_get().  Any\nunprivileged renderD client passing a non-vmwgfx prime fd through the\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\ncall and indefinitely pins the foreign exporter's GEM resources.\n\nFunnel the error path through the existing dma_buf_put() so the\nreference is always dropped.",
  "id": "CVE-2026-80888",
  "modified": "2026-09-06T03:30:53.440008693Z",
  "published": "2026-09-04T17:11:04.975Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80888.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80888"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/vmwgfx: drop dma_buf reference on foreign-fd prime import"
}