SB20251216114 - Improper locking in Linux kernel microchip lan966x driver
Published: December 16, 2025
Security Bulletin ID
SB20251216114
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-2025-68320)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the lan966x_es0_read_esdx_counter() and lan966x_es0_write_esdx_counter() functions in drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.