Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-50492

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
04/10/2025
Last modified:
23/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/msm: fix use-after-free on probe deferral<br /> <br /> The bridge counter was never reset when tearing down the DRM device so<br /> that stale pointers to deallocated structures would be accessed on the<br /> next tear down (e.g. after a second late bind deferral).<br /> <br /> Given enough bridges and a few probe deferrals this could currently also<br /> lead to data beyond the bridge array being corrupted.<br /> <br /> Patchwork: https://patchwork.freedesktop.org/patch/502665/

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.12 (including) 6.0.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools