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However, the\nparent device of usb_role_switch may be removed before the user put the\nusb_role_switch. If so, then, NULL pointer issue will be met when the user\nput the parent module's reference.\n\nThis will save the module pointer in structure of usb_role_switch. Then,\nwe don't need to find module by iterating long relations."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: roles: soluciona el problema del puntero NULL al colocar la referencia del m\u00f3dulo. En el dise\u00f1o actual, el controlador de clase de rol usb obtendr\u00e1 la referencia del m\u00f3dulo principal usb_role_switch despu\u00e9s de que el usuario obtenga el dispositivo usb_role_switch y coloque la referencia despu\u00e9s del El usuario puso el dispositivo usb_role_switch. Sin embargo, el dispositivo principal de usb_role_switch se puede eliminar antes de que el usuario coloque usb_role_switch. Si es as\u00ed, entonces, el problema del puntero NULL se solucionar\u00e1 cuando el usuario coloque la referencia del m\u00f3dulo principal. Esto guardar\u00e1 el puntero del m\u00f3dulo en la estructura de usb_role_switch. Entonces, no necesitamos encontrar el m\u00f3dulo iterando relaciones largas."}], "id": "CVE-2024-26747", "lastModified": "2025-04-04T14:32:01.163", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-04-03T17:15:51.680", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: usb: roles: fix NULL pointer issue when put module's reference", "id": "2273072", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273072"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nusb: roles: fix NULL pointer issue when put module's reference\nIn current design, usb role class driver will get usb_role_switch parent's\nmodule reference after the user get usb_role_switch device and put the\nreference after the user put the usb_role_switch device. However, the\nparent device of usb_role_switch may be removed before the user put the\nusb_role_switch. If so, then, NULL pointer issue will be met when the user\nput the parent module's reference.\nThis will save the module pointer in structure of usb_role_switch. Then,\nwe don't need to find module by iterating long relations."], "name": "CVE-2024-26747", "package_state": [{"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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26747\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26747\nhttps://lore.kernel.org/linux-cve-announce/2024040301-CVE-2024-26747-50b0@gregkh/T"], "threat_severity": "Low"}