Memory leak in Linux kernel - CVE-2022-49636
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104321
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-2022-49636
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 vlan_newlink() function in net/8021q/vlan_netlink.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49636
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/4c43069bb1097dd6cc1cf0f7c43a36d1f7b3910b
- https://git.kernel.org/stable/c/72a0b329114b1caa8e69dfa7cdad1dd3c69b8602
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.236
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.180
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.292