SB20260918368 - Missing Release of Resource after Effective Lifetime in Linux kernel drm sun4i driver

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Main Vulnerability Database SB20260918368

SB20260918368 - Missing Release of Resource after Effective Lifetime in Linux kernel drm sun4i driver

Published: September 18, 2026

Security Bulletin ID SB20260918368
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-2026-90298)

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

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a local user to leak device references.

The vulnerability exists due to improper resource release in the sun8i_r40_tcon_tv_set_mux function when configuring the TCON TV multiplexer. A local user can trigger TCON TV multiplexer configuration to leak device references.


Remediation

Install update from vendor's website.

References