SB2025032747 - Improper locking in Linux kernel hw mlx5 driver
Published: March 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025032747
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-2025-21892)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the mlx5r_umr_cleanup(), mlx5r_umr_recover() and mlx5r_umr_post_send_wait() functions in drivers/infiniband/hw/mlx5/umr.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1d2b84d8d054313deed2b2fcafe1168bbcb9e99f
- https://git.kernel.org/stable/c/3e3bf255992cc02404e9d209b127c1c9944239cf
- https://git.kernel.org/stable/c/d97505baea64d93538b16baf14ce7b8c1fbad746
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14