CVE-2025-38258 Information

Jul 10, 2025 cve

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.

Reference

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

CNNVD-202507-1299 (Published: 2025-07-09)

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