SB20261022393 - Unchecked Return Value in Linux kernel drm mediatek driver

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Main Vulnerability Database SB20261022393

SB20261022393 - Unchecked Return Value in Linux kernel drm mediatek driver

Published: October 22, 2026

Security Bulletin ID SB20261022393
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Unchecked Return Value (CVE-ID: CVE-2026-98783)

CWE-ID: CWE-252 - Unchecked Return Value

CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to potentially cause a denial of service through a kernel crash.

The vulnerability exists due to an unchecked error return in the MediaTek DRM driver's mtk_drm_probe() function when registering the ovl_adaptor platform device. A local user can potentially trigger a kernel crash if able to induce a platform_device_register_data() failure, because the returned error pointer is used without validation and an invalid pointer is passed to subsequent component operations.


Remediation

Install update from vendor's website.

References