#VU106121 Improper locking in Linux kernel - CVE-2025-21892
Published: March 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106121
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21892
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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