Memory leak in Linux kernel - CVE-2022-48720
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92891
CSH Severity: Low
CVSS v4.0: 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-2022-48720
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the macsec_common_dellink() and macsec_dellink() functions in drivers/net/macsec.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-48720
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/2e7f5b6ee1a7a2c628253a95b0a95b582901ef1b
- https://git.kernel.org/stable/c/e7a0b3a0806dae3cc81931f0e83055ca2ac6f455
- https://git.kernel.org/stable/c/8299be160aad8548071d080518712dec0df92bd5
- https://git.kernel.org/stable/c/9cef24c8b76c1f6effe499d2f131807c90f7ce9a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17