fkie_cve-2025-38258
Vulnerability from fkie_nvd
Published
2025-07-09 11:15
Modified
2025-07-10 13:17
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/490a43d07f1663d827e802720d30cbc0494e4f81
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a158ac0538dd5695eeaa00aa0720d711f3e4ef1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f489fe6afb395dbc79840efa3c05440b760d883
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5d5b0047b0c0f304608f3824139f7bd34c48413
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter-\u003ememcg_path on write\n\nmemcg_path_store() assigns a newly allocated memory buffer to\nfilter-\u003ememcg_path, without deallocating the previously allocated and\nassigned memory buffer.  As a result, users can leak kernel memory by\ncontinuously writing a data to memcg_path DAMOS sysfs file.  Fix the leak\nby deallocating the previously set memory buffer."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/damon/sysfs-schemes: la liberaci\u00f3n de la antigua ruta damon_sysfs_scheme_filter-\u0026gt;memcg_path al escribir en memcg_path_store() asigna un b\u00fafer de memoria reci\u00e9n asignado a filter-\u0026gt;memcg_path, sin liberar el b\u00fafer de memoria previamente asignado. Como resultado, los usuarios pueden perder memoria del kernel escribiendo continuamente datos en el archivo sysfs de DAMOS, memcg_path. Para solucionar la p\u00e9rdida, libere el b\u00fafer de memoria previamente asignado."
    }
  ],
  "id": "CVE-2025-38258",
  "lastModified": "2025-07-10T13:17:30.017",
  "metrics": {},
  "published": "2025-07-09T11:15:28.110",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/490a43d07f1663d827e802720d30cbc0494e4f81"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4a158ac0538dd5695eeaa00aa0720d711f3e4ef1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4f489fe6afb395dbc79840efa3c05440b760d883"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c5d5b0047b0c0f304608f3824139f7bd34c48413"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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