{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "01bb86b380a306bd937c96da36f66429f3362137"
            },
            {
              "fixed": "f0e211d6539fae800217c10797993b7592d6ab01"
            },
            {
              "fixed": "3f1024deeab3b5443c29b3de4fe475e87309b8fa"
            },
            {
              "fixed": "371f53925a6714d0aa35f1aefdffc3e8cd62f480"
            },
            {
              "fixed": "34bf74b1fd2e4a44e27821a329204caf09df2976"
            },
            {
              "fixed": "508fd8ab158abd04b7f7d0f707cd6d6c405df4ea"
            },
            {
              "fixed": "f59e686c778cb41b8f7aa8fab2afd6a01afb3d47"
            },
            {
              "fixed": "215c90ee656114f5e8c32408228d97082f8e0eef"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.142"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.92"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64220.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: set fwnode-\u003esecondary to NULL in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node whose life-time we control) or on the heap - but using a\nnon-zeroing allocation function - and initialized using fwnode_init(),\nits secondary pointer will contain uninitalized memory which likely will\nbe neither NULL nor IS_ERR() and so may end up being dereferenced (for\nexample: in dev_to_swnode()). Set fwnode-\u003esecondary to NULL on\ninitialization.",
  "id": "CVE-2026-64220",
  "modified": "2026-07-27T03:56:24.582461748Z",
  "published": "2026-07-24T15:23:06.931Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/215c90ee656114f5e8c32408228d97082f8e0eef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34bf74b1fd2e4a44e27821a329204caf09df2976"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/371f53925a6714d0aa35f1aefdffc3e8cd62f480"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f1024deeab3b5443c29b3de4fe475e87309b8fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/508fd8ab158abd04b7f7d0f707cd6d6c405df4ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f0e211d6539fae800217c10797993b7592d6ab01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f59e686c778cb41b8f7aa8fab2afd6a01afb3d47"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64220.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64220"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "device property: set fwnode-\u003esecondary to NULL in fwnode_init()"
}