#VU91619 Memory leak in Linux kernel - CVE-2021-47466
Published: June 10, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91619
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-2021-47466
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 a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the kmem_cache_open() function in mm/slub.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/4f5d1c29cfab5cb0ab885059818751bdef32e2bb
- https://git.kernel.org/stable/c/568f906340b43120abd6fcc67c37396482f85930
- https://git.kernel.org/stable/c/42b81946e3ac9ea0372ba16e05160dc11e02694f
- https://git.kernel.org/stable/c/9037c57681d25e4dcc442d940d6dbe24dd31f461
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.76
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.156