SB2026030460 - Out-of-bounds read in Linux kernel f2fs
Published: March 4, 2026
Security Bulletin ID
SB2026030460
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-23235)
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 website.
References
- 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