CVE-2025-38258

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-07-09 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

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.

Weakness Classification (1)

CWE-401

Affected Software (9)

Vendor	Product	Version
Linux	Linux	7ee161f18b5da5170b5d6a51aace49d312099128 < 490a43d07f1663d827e802720d30cbc0494e4f81
Linux	Linux	7ee161f18b5da5170b5d6a51aace49d312099128 < c5d5b0047b0c0f304608f3824139f7bd34c48413
Linux	Linux	7ee161f18b5da5170b5d6a51aace49d312099128 < 4a158ac0538dd5695eeaa00aa0720d711f3e4ef1
Linux	Linux	7ee161f18b5da5170b5d6a51aace49d312099128 < 4f489fe6afb395dbc79840efa3c05440b760d883
Linux	Linux	6.3
linux	linux_kernel	6.3 – 6.6.96
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16