Out-of-bounds read in Linux kernel - CVE-2026-31449

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Main Vulnerability Database Vulnerabilities #VU127704

Out-of-bounds read in Linux kernel - CVE-2026-31449

Published: April 24, 2026


Vulnerability identifier: #VU127704
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-31449
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in ext4_ext_correct_indexes when processing a corrupted or crafted on-disk extent header. A local user can supply a crafted filesystem image to disclose sensitive information.


Remediation

Install security update from vendor's repository.

External links