SB2025072764 - Improper locking in Linux kernel hw mlx5 driver
Published: July 27, 2025
Security Bulletin ID
SB2025072764
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-2025-38373)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the mlx5_ib_revoke_data_direct_mrs(), mlx5_revoke_mr() and __mlx5_ib_dereg_mr() functions in drivers/infiniband/hw/mlx5/mr.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.