{"id":"CVE-2026-64220","summary":"device property: set fwnode-\u003esecondary to NULL in fwnode_init()","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.","modified":"2026-07-27T04:03:13.331399224Z","published":"2026-07-24T15:23:06.931Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64220.json","cna_assigner":"Linux"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"01bb86b380a306bd937c96da36f66429f3362137"},{"fixed":"f0e211d6539fae800217c10797993b7592d6ab01"},{"fixed":"3f1024deeab3b5443c29b3de4fe475e87309b8fa"},{"fixed":"371f53925a6714d0aa35f1aefdffc3e8cd62f480"},{"fixed":"34bf74b1fd2e4a44e27821a329204caf09df2976"},{"fixed":"508fd8ab158abd04b7f7d0f707cd6d6c405df4ea"},{"fixed":"f59e686c778cb41b8f7aa8fab2afd6a01afb3d47"},{"fixed":"215c90ee656114f5e8c32408228d97082f8e0eef"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64220.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","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"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64220.json"}}],"schema_version":"1.7.5"}