CVE-2025-38258
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7ee161f18b5da5170b5d6a51aace49d312099128 < 490a43d07f1663d827e802720d30cbc0494e4f81 | affected |
| Linux | Linux | 7ee161f18b5da5170b5d6a51aace49d312099128 < c5d5b0047b0c0f304608f3824139f7bd34c48413 | affected |
| Linux | Linux | 7ee161f18b5da5170b5d6a51aace49d312099128 < 4a158ac0538dd5695eeaa00aa0720d711f3e4ef1 | affected |
| Linux | Linux | 7ee161f18b5da5170b5d6a51aace49d312099128 < 4f489fe6afb395dbc79840efa3c05440b760d883 | affected |
| Linux | Linux | 6.3 | affected |
| Linux | Linux | 0 < 6.3 | unaffected |
| Linux | Linux | 6.6.96 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.36 <= 6.12.* | unaffected |
| Linux | Linux | 6.15.5 <= 6.15.* | unaffected |
| Linux | Linux | 6.16 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/490a43d07f1663d827e802720d30cbc0494e4f81
- https://git.kernel.org/stable/c/c5d5b0047b0c0f304608f3824139f7bd34c48413
- https://git.kernel.org/stable/c/4a158ac0538dd5695eeaa00aa0720d711f3e4ef1
- https://git.kernel.org/stable/c/4f489fe6afb395dbc79840efa3c05440b760d883
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