CVE-2023-53664

In the Linux kernel, the following vulnerability has been resolved: OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate() "opp" pointer is dereferenced before the IS_ERR_OR_NULL() check. Fix it by removing the dereference to cache opp_table and dereference it directly where opp_table is used. This fixes the following smatch warning: drivers/opp/core.c:232 dev_pm_opp_get_required_pstate() warn: variable dereferenced before IS_ERR check 'opp' (see line 230)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/25130b27e0352acb83e91c467853eb9afad3b644	Patch
https://git.kernel.org/stable/c/7ddd8deb1c3c0363a7e14fafb5df26e2089a69a5	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

28 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: OPP: Corrige una posible desreferencia de puntero nulo en dev_pm_opp_get_required_pstate() El puntero ’opp’ es desreferenciado antes de la comprobación IS_ERR_OR_NULL(). Corrígelo al eliminar la desreferencia para almacenar en caché opp_table y desreferenciarlo directamente donde se usa opp_table. Esto corrige la siguiente advertencia de smatch: drivers/opp/core.c:232 dev_pm_opp_get_required_pstate() advertencia: variable desreferenciada antes de la comprobación IS_ERR ’opp’ (ver línea 230)

Information

Published : 2025-10-07 16:15

Updated : 2026-10-28 20:10

NVD link : CVE-2023-53664

Mitre link : CVE-2023-53664

CVE.ORG link : CVE-2023-53664

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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