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CVE-2025-38258

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CVE-2025-38258

Published: Jul 9, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
7ee161f18b5da5170b5d6a51aace49d312099128 - < 490a43d07f1663d827e802720d30cbc0494e4f81
affected
7ee161f18b5da5170b5d6a51aace49d312099128 - < c5d5b0047b0c0f304608f3824139f7bd34c48413
affected
7ee161f18b5da5170b5d6a51aace49d312099128 - < 4a158ac0538dd5695eeaa00aa0720d711f3e4ef1
affected
7ee161f18b5da5170b5d6a51aace49d312099128 - < 4f489fe6afb395dbc79840efa3c05440b760d883

Linux

Linux

affected
6.3
unaffected
0 - < 6.3
unaffected
6.6.96 - <= 6.6.*
unaffected
6.12.36 - <= 6.12.*
unaffected
6.15.5 - <= 6.15.*

+1 more versions

References

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