Improper locking in Linux kernel - CVE-2023-52770
Published: June 8, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91443
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-2023-52770
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 __set_extent_info() and __may_extent_tree() functions in fs/f2fs/extent_cache.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/9de787139b0258a5dd1f498780c26d76b61d2958
- https://git.kernel.org/stable/c/d83309e7e006cee8afca83523559017c824fbf7a
- https://git.kernel.org/stable/c/f803982190f0265fd36cf84670aa6daefc2b0768
- 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