SB2026021654 - Use-after-free in Linux kernel core
Published: February 16, 2026
Security Bulletin ID
SB2026021654
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-23192)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the linkwatch_do_dev(), __linkwatch_run_queue(), __linkwatch_sync_dev() and linkwatch_sync_dev() functions in net/core/link_watch.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.