Answer in brief
CVE-2025-38258 records a Medium severity (CVSS 5.5) vulnerability in mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7ee161f18b5da5170b5d6a51aace49d312099128 <490a43d07f1663d827e802720d30cbc0494e4f81 || >=7ee161f18b5da5170b5d6a51aace49d312099128 <c5d5b0047b0c0f304608f3824139f7bd34c48413 || >=7ee161f18b5da5170b5d6a51aace49d312099128 <4a158ac0538dd5695eeaa00aa0720d711f3e4ef1 || >=7ee161f18b5da5170b5d6a51aace49d312099128 <4f489fe6afb395dbc79840efa3c05440b760d883 | 490a43d07f1663d827e802720d30cbc0494e4f81, c5d5b0047b0c0f304608f3824139f7bd34c48413, 4a158ac0538dd5695eeaa00aa0720d711f3e4ef1, 4f489fe6afb395dbc79840efa3c05440b760d883 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Jul 9, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.