CVE-2026-23144
Unknown Unknown - Not Provided

Memory Leak in Linux Kernel DAMON sysfs on Setup Failure

Publication date: 2026-02-14

Last updated on: 2026-03-17

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure When a context DAMON sysfs directory setup is failed after setup of attrs/ directory, subdirectories of attrs/ directory are not cleaned up. As a result, DAMON sysfs interface is nearly broken until the system reboots, and the memory for the unremoved directory is leaked. Cleanup the directories under such failures.

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Meta Information

Published
2026-02-14
Last Modified
2026-03-17
Generated
2026-07-06
AI Q&A
2026-02-14
EPSS Evaluated
2026-07-04
NVD
CVE-2026-23144
EUVD
EUVD-2026-5893

Affected Vendors & Products

Showing 9 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.13 (inc) to 6.18.7 (exc)
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 6.2 (inc) to 6.6.122 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.67 (exc)
linux linux_kernel From 5.18 (inc) to 6.1.162 (exc)

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability exists in the Linux kernel's DAMON sysfs interface. When the system attempts to set up a context DAMON sysfs directory and the setup fails after creating the attrs/ directory, the subdirectories inside attrs/ are not properly cleaned up.

As a result, the DAMON sysfs interface becomes nearly broken until the system is rebooted, and memory allocated for the unremoved directories is leaked.

The fix involves cleaning up these directories properly when such setup failures occur.

Impact Analysis

This vulnerability can cause the DAMON sysfs interface to become nearly unusable until the system is rebooted.

Additionally, it causes a memory leak due to unremoved directories, which could degrade system performance or stability over time if the issue occurs repeatedly without rebooting.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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