BaseFortify

Publication date: 2025-10-04

Last updated on: 2026-03-23

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: initialize damo_filter->list from damos_new_filter() damos_new_filter() is not initializing the list field of newly allocated filter object. However, DAMON sysfs interface and DAMON_RECLAIM are not initializing it after calling damos_new_filter(). As a result, accessing uninitialized memory is possible. Actually, adding multiple DAMOS filters via DAMON sysfs interface caused NULL pointer dereferencing. Initialize the field just after the allocation from damos_new_filter().

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-04

Last Modified

2026-03-23

Generated

2026-07-07

AI Q&A

2025-10-04

EPSS Evaluated

2026-07-05

NVD

CVE-2023-53555

EUVD

EUVD-2025-32312

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	From 6.3 (inc) to 6.4.11 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-908	The product uses or accesses a resource that has not been initialized.

Attack-Flow Graph

Executive Summary

This vulnerability in the Linux kernel involves the damon_filter object's list field not being initialized properly in the function damos_new_filter(). Because the DAMON sysfs interface and DAMON_RECLAIM do not initialize this field after calling damos_new_filter(), it can lead to accessing uninitialized memory. This improper initialization can cause issues such as NULL pointer dereferencing when adding multiple DAMOS filters via the DAMON sysfs interface.

Impact Analysis

The vulnerability can lead to system instability or crashes due to NULL pointer dereferencing when multiple DAMOS filters are added via the DAMON sysfs interface. Accessing uninitialized memory can cause unpredictable behavior, potentially affecting system reliability and security.

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