CVE-2025-38258

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write memcg_path_store() assigns a newly allocated memory buffer to filter->memcg_path, without deallocating the previously allocated and assigned memory buffer. As a result, users can leak kernel memory by continuously writing a data to memcg_path DAMOS sysfs file. Fix the leak by deallocating the previously set memory buffer.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/490a43d07f1663d827e802720d30cbc0494e4f81	Patch
https://git.kernel.org/stable/c/4a158ac0538dd5695eeaa00aa0720d711f3e4ef1	Patch
https://git.kernel.org/stable/c/4f489fe6afb395dbc79840efa3c05440b760d883	Patch
https://git.kernel.org/stable/c/c5d5b0047b0c0f304608f3824139f7bd34c48413	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.16:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.16:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.16:rc3::::::

History

No history.

Information

Published : 2025-07-09 11:15

Updated : 2025-11-19 20:52

NVD link : CVE-2025-38258

Mitre link : CVE-2025-38258

CVE.ORG link : CVE-2025-38258

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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