#VU93451 Improper error handling in Linux kernel - CVE-2021-47264
Published: June 27, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93451
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-2021-47264
CWE-ID: CWE-388
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 error handling within the fmt_single_name() function in sound/soc/soc-core.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/0e2c9aeb00289f279b8181fbd4c20765127d8943
- https://git.kernel.org/stable/c/047fd16015a79180771650aa6ce71f68b2c23368
- https://git.kernel.org/stable/c/41daf6ba594d55f201c50280ebcd430590441da1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13