CVE-2025-39882

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: fix potential OF node use-after-free The for_each_child_of_node() helper drops the reference it takes to each node as it iterates over children and an explicit of_node_put() is only needed when exiting the loop early. Drop the recently introduced bogus additional reference count decrement at each iteration that could potentially lead to a use-after-free.

CVSS v3 8.4 HIGH

8.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4de37a48b6b58faaded9eb765047cf0d8785ea18	Patch
https://git.kernel.org/stable/c/b2fbe0f9f80b9cfa1e06ddcf8b863d918394ef1d	Patch
https://git.kernel.org/stable/c/b58a26cdd4795c1ce6a80e38e9348885555dacd6	Patch
https://git.kernel.org/stable/c/c4901802ed1ce859242e10af06e6a7752cba0497	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc5::::::

History

19 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: drm/mediatek: corrige potencial uso después de liberación de nodo OF La función auxiliar for_each_child_of_node() libera la referencia que toma a cada nodo mientras itera sobre los hijos y una llamada explícita a of_node_put() solo es necesaria al salir del bucle prematuramente. Eliminar el recientemente introducido decremento adicional erróneo del contador de referencias en cada iteración que podría conducir potencialmente a un uso después de liberación.

Information

Published : 2025-09-23 06:15

Updated : 2026-10-19 21:10

NVD link : CVE-2025-39882

Mitre link : CVE-2025-39882

CVE.ORG link : CVE-2025-39882

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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