#VU88213 Memory leak in Linux kernel - CVE-2021-46923
Published: April 8, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU88213
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-2021-46923
CWE-ID: CWE-401
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 DoS attack on the target system.
The vulnerability exists due memory leak within the SYSCALL_DEFINE5() function in fs/namespace.c. A local user can perform a denial of service attack.
Remediation
Install updates from vendor's website.