#VU111586 Improper locking in Linux kernel - CVE-2022-49957
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111586
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-2022-49957
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 kcm_attach() function in net/kcm/kcmsock.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0946ff31d1a8778787bf6708beb20f38715267cc
- https://git.kernel.org/stable/c/1b6666964ca1de93a7bf06e122bcf3616dbd33a9
- https://git.kernel.org/stable/c/473f394953216614087f4179e55cdf0cf616a13b
- https://git.kernel.org/stable/c/55fb8c3baa8071c5d533a9ad48624e44e2a04ef5
- https://git.kernel.org/stable/c/8fc29ff3910f3af08a7c40a75d436b5720efe2bf
- https://git.kernel.org/stable/c/a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8
- https://git.kernel.org/stable/c/f865976baa85915c7672f351b74d5974b93215f6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.8