CVE-2025-38717

{"id": "CVE-2025-38717", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.0}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3", "lessThan": "c0bffbc92a1ca3960fb9cdb8e9f75a68468eb308", "versionType": "git"}, {"status": "affected", "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3", "lessThan": "7275dc3bb8f91b23125ff3f47b6529935cf46152", "versionType": "git"}, {"status": "affected", "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3", "lessThan": "798733ee5d5788b12e8a52db1519abc17e826f69", "versionType": "git"}, {"status": "affected", "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3", "lessThan": "52565a935213cd6a8662ddb8efe5b4219343a25d", "versionType": "git"}], "programFiles": ["include/net/kcm.h", "net/kcm/kcmsock.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.6"}, {"status": "unaffected", "version": "0", "lessThan": "4.6", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.43", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.15.11", "versionType": "semver", "lessThanOrEqual": "6.15.*"}, {"status": "unaffected", "version": "6.16.2", "versionType": "semver", "lessThanOrEqual": "6.16.*"}, {"status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/net/kcm.h", "net/kcm/kcmsock.c"], "defaultStatus": "affected"}]}], "published": "2025-09-04T16:15:41.257", "references": [{"url": "https://git.kernel.org/stable/c/52565a935213cd6a8662ddb8efe5b4219343a25d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7275dc3bb8f91b23125ff3f47b6529935cf46152", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/798733ee5d5788b12e8a52db1519abc17e826f69", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c0bffbc92a1ca3960fb9cdb8e9f75a68468eb308", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: kcm: Fix race condition in kcm_unattach()\n\nsyzbot found a race condition when kcm_unattach(psock)\nand kcm_release(kcm) are executed at the same time.\n\nkcm_unattach() is missing a check of the flag\nkcm->tx_stopped before calling queue_work().\n\nIf the kcm has a reserved psock, kcm_unattach() might get executed\nbetween cancel_work_sync() and unreserve_psock() in kcm_release(),\nrequeuing kcm->tx_work right before kcm gets freed in kcm_done().\n\nRemove kcm->tx_stopped and replace it by the less\nerror-prone disable_work_sync()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: kcm: Corrige condici\u00f3n de carrera en kcm_unattach()\n\nsyzbot encontr\u00f3 una condici\u00f3n de carrera cuando kcm_unattach(psock) y kcm_release(kcm) se ejecutan al mismo tiempo.\n\nA kcm_unattach() le falta una comprobaci\u00f3n del flag kcm->tx_stopped antes de llamar a queue_work().\n\nSi el kcm tiene un psock reservado, kcm_unattach() podr\u00eda ejecutarse entre cancel_work_sync() y unreserve_psock() en kcm_release(), volviendo a encolar kcm->tx_work justo antes de que kcm sea liberado en kcm_done().\n\nEliminar kcm->tx_stopped y reemplazarlo por el menos propenso a errores disable_work_sync()."}], "lastModified": "2026-10-19T21:10:00.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE88E291-C7FB-45C2-9252-DC1DCF606A9F", "versionEndExcluding": "6.12.43", "versionStartIncluding": "4.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BC242347-F722-43AE-B910-BE0B22386977", "versionEndExcluding": "6.15.11", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD7C087D-2415-4521-B624-30003352F899", "versionEndExcluding": "6.16.2", "versionStartIncluding": "6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}