SB20260528117 - Use-after-free in Linux kernel drm exynos driver

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Main Vulnerability Database SB20260528117

SB20260528117 - Use-after-free in Linux kernel drm exynos driver

Published: May 28, 2026

Security Bulletin ID SB20260528117
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) Use-after-free (CVE-ID: CVE-2026-45956)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service or potentially execute arbitrary code.

The vulnerability exists due to use-after-free in vidi_connection_ioctl() when handling ioctl requests and looking up the vidi context from incorrect driver data. A local user can trigger the vulnerable ioctl path to cause a denial of service or potentially execute arbitrary code.

The issue stems from using the exynos-drm master device driver data instead of the vidi component device context.


Remediation

Install update from vendor's website.

References