medium5.5
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_…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.3 before 6.6.96 from 6.7 before 6.12.36 from 6.13 before 6.15.5 Version 6.16 |
Weakness classification
References
- NVD record
- CVE.org record
- 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