SB20260912184 - Improper resource shutdown or release in Linux kernel video fbdev driver
Published: September 12, 2026
Security Bulletin ID
SB20260912184
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper resource shutdown or release (CVE-ID: CVE-2026-89597)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local privileged user to leave a v86d connector callback registered after initialization fails.
The vulnerability exists due to improper resource shutdown or release in uvesafb_init() when platform driver registration fails after registering the v86d connector callback. A local privileged user can initialize uvesafb to leave the callback registered.
Remediation
Install update from vendor's website.