VULNERABILITY INTELLIGENCE

CVE-2026-64220

CVSS score5.5 MEDIUM
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-07-24
Last modified2026-08-11
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: device property: set fwnode->secondary to NULL 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 uninitalized 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.

Weakness classification

  • nvd@nist.gov: CWE-908

Primary references