SB2025122699 - Memory leak in Linux kernel mlx5 core driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025122699
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) Memory leak (CVE-ID: CVE-2023-53999)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mlx5e_tc_del_fdb_flow() and mlx5_free_flow_attr_actions() functions in drivers/net/ethernet/mellanox/mlx5/core/en_tc.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.