SB20251226211 - NULL pointer dereference in Linux kernel x86 events
Published: December 26, 2025
Security Bulletin ID
SB20251226211
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 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2025-68375)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the x86_pmu_enable(), x86_pmu_start(), x86_pmu_stop() and x86_pmu_del() functions in arch/x86/events/core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.