CVE-2021-47659

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

26/02/2025

Last modified:

14/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: drm/plane: Move range check for format_count earlier While the check for format_count > 64 in __drm_universal_plane_init() shouldn&#39;t be hit (it&#39;s a WARN_ON), in its current position it will then leak the plane->format_types array and fail to call drm_mode_object_unregister() leaking the modeset identifier. Move it to the start of the function to avoid allocating those resources in the first place.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.14 (including)	4.19.247 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.198 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.121 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.46 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.17.14 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.18 (including)	5.18.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-47659

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools