#VU123547 Buffer overflow in Linux kernel - CVE-2026-23233
Published: March 4, 2026
Vulnerability identifier: #VU123547
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-2026-23233
CWE-ID: CWE-119
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 memory corruption within the check_swap_activate() function in fs/f2fs/data.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/1ff415eef513bf12deb058fc50d57788c46c48e6
- https://git.kernel.org/stable/c/5c145c03188bc9ba1c29e0bc4d527a5978fc47f9
- https://git.kernel.org/stable/c/607cb9d83838d2cd9f0406c2403ed61aadf0edff
- https://git.kernel.org/stable/c/d4534a7f6c92baaf7e12a45fc6e37332cafafc33
- https://git.kernel.org/stable/c/fee27b69dde1a05908b350eea42937af2387c4fe