SB2026061032 - NULL pointer dereference in Linux kernel renesas vsp1 driver
Published: June 10, 2026
Security Bulletin ID
SB2026061032
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-46310)
CWE-ID: CWE-476 - NULL Pointer Dereference
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.
The vulnerability exists due to a NULL pointer dereference in the vsp1 module cleanup logic when unloading the module on gen 4 systems. A local user can trigger module unload to cause a denial of service.
The issue occurs because the cleanup path calls the wrong cleanup function for gen 4 hardware.
Remediation
Install update from vendor's website.