PT-2026-64335 · Linux+2 · Linux Kernel+2

CVE-2026-64220

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Published

2026-07-24

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Updated

2026-09-07

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the fwnode init() function where the secondary pointer of a firmware node is not properly initialized. When a firmware node is allocated on the stack or on the heap using a non-zeroing allocation function, the secondary pointer contains uninitialized memory. This can lead to the pointer being dereferenced in functions such as dev to swnode(), potentially causing system instability or crashes.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use of Uninitialized Resource

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Weakness Enumeration

Related Identifiers

CVE-2026-64220
OPENSUSE-SU-2026:21555-1
SUSE-SU-2026:23066-1
SUSE-SU-2026:23068-1
SUSE-SU-2026:23193-1
SUSE-SU-2026:23194-1
SUSE-SU-2026:23221-1
SUSE-SU-2026:23231-1
SUSE-SU-2026:23237-1
SUSE-SU-2026:23241-1
SUSE-SU-2026:23244-1
SUSE-SU-2026:3790-1
SUSE-SU-2026:3810-1
USN-8618-1
USN-8620-1
USN-8620-2
USN-8620-3
USN-8620-4
USN-8663-1
USN-8664-1
USN-8668-1
USN-8728-1
USN-8729-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu