CVE-2025-38258

{"id": "CVE-2025-38258", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-07-09T11:15:28.110", "references": [{"url": "https://git.kernel.org/stable/c/490a43d07f1663d827e802720d30cbc0494e4f81", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4a158ac0538dd5695eeaa00aa0720d711f3e4ef1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4f489fe6afb395dbc79840efa3c05440b760d883", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c5d5b0047b0c0f304608f3824139f7bd34c48413", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "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->memcg_path on write\n\nmemcg_path_store() assigns a newly allocated memory buffer to\nfilter->memcg_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->memcg_path al escribir en memcg_path_store() asigna un b\u00fafer de memoria reci\u00e9n asignado a filter->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."}], "lastModified": "2025-11-19T20:52:51.900", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8DCA0494-B26F-43F6-BFB1-E9DD81E946FA", "versionEndExcluding": "6.6.96", "versionStartIncluding": "6.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2BD88DEC-018F-4F40-8E29-A2CA89813EBA", "versionEndExcluding": "6.12.36", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0CC768E2-3BBC-4A6E-9C2F-ECB27A703C2D", "versionEndExcluding": "6.15.5", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}