{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "312278b3091912fa56a6a587609f17dcb33465c2"
            },
            {
              "fixed": "9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8"
            },
            {
              "fixed": "65bff26617607c1331283232016c0e89088c5b78"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.42"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68238.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Release VFCT ACPI table reference\n\namdgpu_acpi_vfct_bios() fetches the VFCT table with acpi_get_table()\nbut never releases it. acpi_get_table() takes a reference on the\ntable (incrementing its validation_count and mapping it on the 0-\u003e1\ntransition); without a paired acpi_put_table() the mapping is leaked\non every call, whether or not a matching VBIOS image is found.\n\nRoute all exit paths after the table is acquired through a common\nacpi_put_table(). The VBIOS image is copied out with kmemdup() before\nthe table is released, so it remains valid for the caller.\n\n(cherry picked from commit ca5988682b4cba4cd125a0fa99b2de1239164ae4)",
  "id": "CVE-2026-68238",
  "modified": "2026-08-12T03:51:32.072326730Z",
  "published": "2026-08-10T12:01:03.277Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/312278b3091912fa56a6a587609f17dcb33465c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65bff26617607c1331283232016c0e89088c5b78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68238.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68238"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/amdgpu: Release VFCT ACPI table reference"
}