Description
In the Linux kernel, the following vulnerability has been resolved: device property: initialize the remaining fields of fwnode_handle in fwnode_init() If a firmware node is allocated on the stack (for instance: temporary software node whose life-time we control) or on the heap - but using a non-zeroing allocation function - and initialized using fwnode_init(), its secondary pointer will contain uninitialized memory which likely will be neither NULL nor IS_ERR() and so may end up being dereferenced (for example: in dev_to_swnode()). Set fwnode->secondary to NULL on initialization. While at it: initialize the remaining fields of struct fwnode_handle too just to be sure. [ Fix typo in commit message. - Danilo ]
References7
- git.kernel.org/stable/c/0198d579948322cda5178b9672d448375a32f947
- git.kernel.org/stable/c/173b61c9276c7b3a5fbcc63ae7aafc897fee1e18
- git.kernel.org/stable/c/7eba000621fff223dd7bab484d48918c7c77a307
- git.kernel.org/stable/c/9c86a1f930bb2ddb85f867b4736716e82a4a4683
- git.kernel.org/stable/c/c81e2af41de6a159837c7129a4fc444ac6e48046
- git.kernel.org/stable/c/c8542b68ba6ef4f61072098893a3f5b71c569b6c
- git.kernel.org/stable/c/f0b4e1cc8ad76baf49d898727eb52e91a4ef0544
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 12 November 2026
- CWE
- CWE-665
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