SB20261022391 - Missing Release of Resource after Effective Lifetime in Linux kernel drm mediatek driver

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Main Vulnerability Database SB20261022391

SB20261022391 - Missing Release of Resource after Effective Lifetime in Linux kernel drm mediatek driver

Published: October 22, 2026

Security Bulletin ID SB20261022391
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-98781)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a local privileged user to cause a device-reference leak that may lead to resource exhaustion.

The vulnerability exists due to a missing release of a device reference in the Linux kernel MediaTek DRM driver's mtk_drm_bind() function when binding a device that is not the mmsys master. A local privileged user can trigger the affected binding path to leave a reference acquired through of_find_device_by_node() unreleased, potentially exhausting resources through repeated triggering.


Remediation

Install update from vendor's website.

References