SB20251230160 - Use-after-free in Linux kernel mlx5 core driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230160
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-2023-54216)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mlx5e_tc_update_skb_nic() and mlx5e_tc_action_miss_mapping_get() functions in drivers/net/ethernet/mellanox/mlx5/core/en_tc.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.