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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 7ee161f18b5da5170b5d6a51aace49d312099128, < 490a43d07f1663d827e802720d30cbc0494e4f81; >= 7ee161f18b5da5170b5d6a51aace49d312099128, < c5d5b0047b0c0f304608f3824139f7bd34c48413; >= 7ee161f18b5da5170b5d6a51aace49d312099128, < 4a158ac0538dd5695eeaa00aa0720d711f3e4ef1; >= 7ee161f18b5da5170b5d6a51aace49d312099128, < 4f489fe6afb395dbc79840efa3c05440b760d883 |
| Linux | Linux | 6.3 |
References
- https://git.kernel.org/stable/c/490a43d07f1663d827e802720d30cbc0494e4f81Patch
- https://git.kernel.org/stable/c/4a158ac0538dd5695eeaa00aa0720d711f3e4ef1Patch
- https://git.kernel.org/stable/c/4f489fe6afb395dbc79840efa3c05440b760d883Patch
- https://git.kernel.org/stable/c/c5d5b0047b0c0f304608f3824139f7bd34c48413Patch
Timeline
- Published
- Jul 9, 2025
- Last modified
- Nov 5, 2026
- NVD status
- Analyzed