#VU104664 Improper locking in Linux kernel - CVE-2022-49402
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104664
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-2022-49402
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 ftrace_func_mapper_add_ip() and register_ftrace_direct() functions in kernel/trace/ftrace.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/7d54c15cb89a29a5f59e5ffc9ee62e6591769ef1
- https://git.kernel.org/stable/c/805e87af946d8d2954171361e64d143ff37a441b
- https://git.kernel.org/stable/c/82c888e51c2176a06f8b4541cf748ee81aac6e7e
- https://git.kernel.org/stable/c/a0392833a178cf109a57c2a9d4d531bdfc6cd98f
- https://git.kernel.org/stable/c/cae2978d6907ef2c08b9b15f704e783f7c284713
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.46