Riskcovery

CVE-2025-38258

mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write

State
Published
Severity
Not scored
Published
Jul 9, 2025
Updated
May 11, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 7ee161f18b5da5170b5d6a51aace49d312099128 to before 490a43d07f1663d827e802720d30cbc0494e4f81Affected
  • 7ee161f18b5da5170b5d6a51aace49d312099128 to before c5d5b0047b0c0f304608f3824139f7bd34c48413Affected
  • 7ee161f18b5da5170b5d6a51aace49d312099128 to before 4a158ac0538dd5695eeaa00aa0720d711f3e4ef1Affected
  • 7ee161f18b5da5170b5d6a51aace49d312099128 to before 4f489fe6afb395dbc79840efa3c05440b760d883Affected
LinuxLinux
  • 6.3Affected
  • before 6.3Not affected
  • 6.6.96 through 6.6.*Not affected
  • 6.12.36 through 6.12.*Not affected
  • 6.15.5 through 6.15.*Not affected
  • 6.16 and laterNot affected

References

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