{"id":"CVE-2026-68461","title":"device property: initialize the remaining fields of fwnode_handle in fwnode_init()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: initialize the remaining fields of fwnode_handle in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 0198d579948322cda5178b9672d448375a32f947","Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 173b61c9276c7b3a5fbcc63ae7aafc897fee1e18","Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < f0b4e1cc8ad76baf49d898727eb52e91a4ef0544","Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < c8542b68ba6ef4f61072098893a3f5b71c569b6c","Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 9c86a1f930bb2ddb85f867b4736716e82a4a4683","Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < c81e2af41de6a159837c7129a4fc444ac6e48046","Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 7eba000621fff223dd7bab484d48918c7c77a307","Linux 5.11"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:49:26.630961Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:53:14.716Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68461","references":[{"url":"https://git.kernel.org/stable/c/0198d579948322cda5178b9672d448375a32f947"},{"url":"https://git.kernel.org/stable/c/173b61c9276c7b3a5fbcc63ae7aafc897fee1e18"},{"url":"https://git.kernel.org/stable/c/f0b4e1cc8ad76baf49d898727eb52e91a4ef0544"},{"url":"https://git.kernel.org/stable/c/c8542b68ba6ef4f61072098893a3f5b71c569b6c"},{"url":"https://git.kernel.org/stable/c/9c86a1f930bb2ddb85f867b4736716e82a4a4683"},{"url":"https://git.kernel.org/stable/c/c81e2af41de6a159837c7129a4fc444ac6e48046"},{"url":"https://git.kernel.org/stable/c/7eba000621fff223dd7bab484d48918c7c77a307"}],"tags":["cve.org"],"epss":0.00176,"epssPercentile":0.06639,"ingestedAt":"2026-10-16T17:24:46.869Z","slug":"CVE-2026-68461","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: initialize the remaining fields of fwnode_handle 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 uninitialized memory which likely\nwill be neither NULL nor IS_ERR() and so may end up being dereferenced\n(for example: in dev_to_swnode()). Set fwnode->secondary to NULL on\ninitialization. While at it: initialize the remaining fields of struct\nfwnode_handle too just to be sure.\n\n[ Fix typo in commit message. - Danilo ]\n\n## Affected\n\n- `Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 0198d579948322cda5178b9672d448375a32f947`\n- `Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 173b61c9276c7b3a5fbcc63ae7aafc897fee1e18`\n- `Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < f0b4e1cc8ad76baf49d898727eb52e91a4ef0544`\n- `Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < c8542b68ba6ef4f61072098893a3f5b71c569b6c`\n- `Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 9c86a1f930bb2ddb85f867b4736716e82a4a4683`\n- `Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < c81e2af41de6a159837c7129a4fc444ac6e48046`\n- `Linux >= 01bb86b380a306bd937c96da36f66429f3362137 < 7eba000621fff223dd7bab484d48918c7c77a307`\n- `Linux 5.11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}