#VU95507 Improper locking in Linux kernel - CVE-2024-42239
Published: August 7, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU95507
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-2024-42239
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 __bpf_async_init(), drop_prog_refcnt(), BPF_CALL_1() and hrtimer_cancel() functions in kernel/bpf/helpers.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/9369830518688ecd5b08ffc08ab3302ce2b5d0f7
- https://git.kernel.org/stable/c/3e4e8178a8666c56813bd167b848fca0f4c9af0a
- https://git.kernel.org/stable/c/d4523831f07a267a943f0dde844bf8ead7495f13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.41