SB2025092373 - NULL pointer dereference in Linux kernel trace
Published: September 23, 2025
Security Bulletin ID
SB2025092373
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-2025-39887)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the osnoise_cpus_write() function in kernel/trace/trace_osnoise.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.