Improper locking in Linux kernel - CVE-2022-48675
Published: June 3, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90762
CSH Severity: 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-2022-48675
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 mmput_async() function in kernel/fork.c, within the mutex_unlock() function in drivers/infiniband/core/umem_odp.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/e8de6cb5755eae7b793d8c00c8696c8667d44a7f
- https://git.kernel.org/stable/c/819110054b14d7272b4188db997a3d80f75ab785
- https://git.kernel.org/stable/c/83c43fd872e32c8071d5582eb7c40f573a8342f3
- https://git.kernel.org/stable/c/85eaeb5058f0f04dffb124c97c86b4f18db0b833
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.143
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.68
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0