SB20251216115 - Improper locking in Linux kernel net driver
Published: December 16, 2025
Security Bulletin ID
SB20251216115
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) Improper locking (CVE-ID: CVE-2025-68319)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the userdatum_value_store(), sysdata_msgid_enabled_store(), sysdata_release_enabled_store(), sysdata_taskname_enabled_store() and sysdata_cpu_nr_enabled_store() functions in drivers/net/netconsole.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.