#VU106768 Improper locking in Linux kernel - CVE-2025-21943
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106768
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-2025-21943
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 new_device_store(), kfree() and delete_device_store() functions in drivers/gpio/gpio-aggregator.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/12f65d1203507f7db3ba59930fe29a3b8eee9945
- https://git.kernel.org/stable/c/56281a76b805b5ac61feb5d580139695a22f87f0
- https://git.kernel.org/stable/c/807789018186cf508ceb3a1f8f02935cd195717b
- https://git.kernel.org/stable/c/8fb07fb1bba91d45846ed8605c3097fe67a7d54c
- https://git.kernel.org/stable/c/9334c88fc2fbc6836b307d269fcc1744c69701c0
- https://git.kernel.org/stable/c/d99dc8f7ea01ee1b21306e0eda8eb18a4af80db6
- https://git.kernel.org/stable/c/fd6aa1f8cbe0979eb66ac32ebc231bf0b10a2117
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.235