#VU104235 Memory leak in Linux kernel - CVE-2022-49256
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104235
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49256
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 free_watch() function in kernel/watch_queue.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/31824613a42aacdcbeb325bf07a1c8247a11ebe2
- https://git.kernel.org/stable/c/3d8dcf278b1ee1eff1e90be848fa2237db4c07a7
- https://git.kernel.org/stable/c/7e8c9b0df07a77f0d072603b8ced2677e30e1893
- https://git.kernel.org/stable/c/9d92be1a09fbb3dd65600dbfe7eedb40e7228e4b
- https://git.kernel.org/stable/c/f69aecb49968e14196366bbe896eab0a904229f5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.33