#VU99018 Improper locking in Linux kernel - CVE-2024-49946
Published: October 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU99018
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-2024-49946
CWE-ID: CWE-667
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 locking within the ppp_channel_bridge_input() function in drivers/net/ppp/ppp_generic.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/176dd41e8c2bd997ed3d66568a3362e69ecce99b
- https://git.kernel.org/stable/c/635deca1800a68624f185dc1e04a8495b48cf185
- https://git.kernel.org/stable/c/f9620e2a665aa642625bd2501282bbddff556bd7
- https://git.kernel.org/stable/c/efe9cc0f7c0279216a5522271ec675b8288602e4
- https://git.kernel.org/stable/c/c837f8583535f094a39386308c2ccfd92c8596cd
- https://git.kernel.org/stable/c/aec7291003df78cb71fd461d7b672912bde55807
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.168
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.113
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55