{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38258", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.997Z", "datePublished": "2025-07-09T10:42:35.000Z", "dateUpdated": "2025-07-09T10:42:35.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-09T10:42:35.000Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/sysfs-schemes.c"], "versions": [{"version": "7ee161f18b5da5170b5d6a51aace49d312099128", "lessThan": "490a43d07f1663d827e802720d30cbc0494e4f81", "status": "affected", "versionType": "git"}, {"version": "7ee161f18b5da5170b5d6a51aace49d312099128", "lessThan": "c5d5b0047b0c0f304608f3824139f7bd34c48413", "status": "affected", "versionType": "git"}, {"version": "7ee161f18b5da5170b5d6a51aace49d312099128", "lessThan": "4a158ac0538dd5695eeaa00aa0720d711f3e4ef1", "status": "affected", "versionType": "git"}, {"version": "7ee161f18b5da5170b5d6a51aace49d312099128", "lessThan": "4f489fe6afb395dbc79840efa3c05440b760d883", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/sysfs-schemes.c"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.96", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.36", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.5", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16-rc4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.6.96"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.15.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.16-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/490a43d07f1663d827e802720d30cbc0494e4f81"}, {"url": "https://git.kernel.org/stable/c/c5d5b0047b0c0f304608f3824139f7bd34c48413"}, {"url": "https://git.kernel.org/stable/c/4a158ac0538dd5695eeaa00aa0720d711f3e4ef1"}, {"url": "https://git.kernel.org/stable/c/4f489fe6afb395dbc79840efa3c05440b760d883"}], "title": "mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"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->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."}], "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"}

{"bugzilla": {"description": "kernel: mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write", "id": "2378979", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2378979"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-38258", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38258\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38258\nhttps://lore.kernel.org/linux-cve-announce/2025070936-CVE-2025-38258-4e00@gregkh/T"], "threat_severity": "Moderate"}