CVE-2025-38258 (GCVE-0-2025-38258)

Vulnerability from cvelistv5 – Published: 2025-07-09 10:42 – Updated: 2026-05-11 21:24
VLAI
Title
mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7ee161f18b5da5170b5d6a51aace49d312099128 , < 490a43d07f1663d827e802720d30cbc0494e4f81 (git)
Affected: 7ee161f18b5da5170b5d6a51aace49d312099128 , < c5d5b0047b0c0f304608f3824139f7bd34c48413 (git)
Affected: 7ee161f18b5da5170b5d6a51aace49d312099128 , < 4a158ac0538dd5695eeaa00aa0720d711f3e4ef1 (git)
Affected: 7ee161f18b5da5170b5d6a51aace49d312099128 , < 4f489fe6afb395dbc79840efa3c05440b760d883 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.96 , ≤ 6.6.* (semver)
Unaffected: 6.12.36 , ≤ 6.12.* (semver)
Unaffected: 6.15.5 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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      "cve": "CVE-2025-38258",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter-\u003ememcg_path on write",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38258.json",
      "version": "3"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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