CVE-2024-40968

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So it is\nnecessary to add PCIe link status check for system protection.\nWhen the PCIe link is down or in training, assigning a value\nof 0 to the configuration address can prevent read-write behavior\nto the configuration space of peripheral PCIe devices, thereby\npreventing kernel panic."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: MIPS: Octeon: agregar verificaci\u00f3n de estado del enlace PCIe La interfaz de lectura y escritura de configuraci\u00f3n PCIe est\u00e1ndar se utiliza para acceder al espacio de configuraci\u00f3n de los dispositivos PCIe perif\u00e9ricos del procesador mips despu\u00e9s de la sorpresa del enlace PCIe. inactivo, puede generar p\u00e1nico en el kernel causado por un \"Error del bus de datos\". Por lo tanto, es necesario agregar una verificaci\u00f3n del estado del enlace PCIe para proteger el sistema. Cuando el enlace PCIe est\u00e1 inactivo o en entrenamiento, asignar un valor de 0 a la direcci\u00f3n de configuraci\u00f3n puede evitar el comportamiento de lectura y escritura en el espacio de configuraci\u00f3n de los dispositivos PCIe perif\u00e9ricos, evitando as\u00ed el p\u00e1nico del kernel."}], "id": "CVE-2024-40968", "lastModified": "2026-06-17T07:46:58.997", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-40968", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T17:03:03.974651Z", "version": "2.0.3"}}]}, "published": "2024-07-12T13:15:18.553", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c33fd17383f48f679186c54df78542106deeaa0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/25998f5613159fe35920dbd484fcac7ea3ad0799"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/29b83a64df3b42c88c0338696feb6fdcd7f1f3b7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/38d647d509543e9434b3cc470b914348be271fe9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/64845ac64819683ad5e51b668b2ed56ee3386aee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6bff05aaa32c2f7e1f6e68e890876642159db419"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6c1b9fe148a4e03bbfa234267ebb89f35285814a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d996deb80398a90dd3c03590e68dad543da87d62"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c33fd17383f48f679186c54df78542106deeaa0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/25998f5613159fe35920dbd484fcac7ea3ad0799"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/29b83a64df3b42c88c0338696feb6fdcd7f1f3b7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/38d647d509543e9434b3cc470b914348be271fe9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/64845ac64819683ad5e51b668b2ed56ee3386aee"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6bff05aaa32c2f7e1f6e68e890876642159db419"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6c1b9fe148a4e03bbfa234267ebb89f35285814a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d996deb80398a90dd3c03590e68dad543da87d62"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: MIPS: Octeon: Add PCIe link status check", "id": "2297552", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2297552"}, "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-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nMIPS: Octeon: Add PCIe link status check\nThe standard PCIe configuration read-write interface is used to\naccess the configuration space of the peripheral PCIe devices\nof the mips processor after the PCIe link surprise down, it can\ngenerate kernel panic caused by \"Data bus error\". So it is\nnecessary to add PCIe link status check for system protection.\nWhen the PCIe link is down or in training, assigning a value\nof 0 to the configuration address can prevent read-write behavior\nto the configuration space of peripheral PCIe devices, thereby\npreventing kernel panic."], "name": "CVE-2024-40968", "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": "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": "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": "2024-07-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-40968\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-40968\nhttps://lore.kernel.org/linux-cve-announce/2024071228-CVE-2024-40968-5127@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-12T16:01:25.076283+00:00", "updated": "2025-07-12T16:01:25.076357+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}