#VU123542 Out-of-bounds read in Linux kernel - CVE-2026-23235
Published: March 4, 2026
Vulnerability identifier: #VU123542
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-2026-23235
CWE-ID: CWE-125
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 an out-of-bounds read error within the main_blkaddr_show(), f2fs_sbi_show() and __sbi_store() functions in fs/f2fs/sysfs.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/3a905e183c047577b154f08a78ac3039e9454703
- https://git.kernel.org/stable/c/438a405fbad6882df0e34b3e1a16839a71f04240
- https://git.kernel.org/stable/c/4ef30b9f1641c9e877792df6b049f1cf507d002d
- https://git.kernel.org/stable/c/6a6c07a9b49e43f0df42d7118fc76aa555c73d98
- https://git.kernel.org/stable/c/98ea0039dbfdd00e5cc1b9a8afa40434476c0955
- https://git.kernel.org/stable/c/d4a594dd952df123cbdcdee9b9640d9d55e4a954
- https://git.kernel.org/stable/c/e85a99db9ab85dfc30d93b0ca0e9156f3127f55a
- https://git.kernel.org/stable/c/eebd72cff518ac87e660aefb8a41224bd88c32ce