Improper locking in Linux kernel - CVE-2023-52786
Published: June 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92014
CSH Severity: 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-2023-52786
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 ext4_dio_write_iter() function in fs/ext4/file.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/e3b83d87c93eb6fc96a80b5e8527f7dc9f5a11bc
- https://git.kernel.org/stable/c/7343c23ebcadbedc23a7063d1e24d976eccb0d0d
- https://git.kernel.org/stable/c/ce56d21355cd6f6937aca32f1f44ca749d1e4808
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7