BaseFortify

Publication date: 2025-10-01

Last updated on: 2025-10-02

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix leaking uninitialized memory in fast-commit journal When space at the end of fast-commit journal blocks is unused, make sure to zero it out so that uninitialized memory is not leaked to disk.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-01

Last Modified

2025-10-02

Generated

2026-07-06

AI Q&A

2025-10-01

EPSS Evaluated

2026-07-05

NVD

CVE-2022-50465

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 5.15.160 (inc) to 5.16 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability in the Linux kernel's ext4 filesystem involves leaking uninitialized memory in the fast-commit journal. Specifically, when there is unused space at the end of fast-commit journal blocks, that memory was not properly zeroed out, causing potentially sensitive uninitialized memory to be written to disk.

Impact Analysis

The impact of this vulnerability is that uninitialized memory, which may contain sensitive or residual data, could be leaked to disk. This could potentially expose sensitive information stored in memory to unauthorized parties who have access to the disk.

Compliance Impact

This vulnerability could negatively affect compliance with data protection standards and regulations such as GDPR and HIPAA because leaking uninitialized memory to disk may result in unauthorized exposure of sensitive personal or protected health information.

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