CVE-2024-38384

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued __blkcg_rstat_flush() can be run anytime, especially when blk_cgroup_bio_start is being executed. If WRITE of `->lqueued` is re-ordered with READ of 'bisc->lnode.next' in the loop of __blkcg_rstat_flush(), `next_bisc` can be assigned with one stat instance being added in blk_cgroup_bio_start(), then the local list in __blkcg_rstat_flush() could be corrupted. Fix the issue by adding one barrier.

CVSS v3 8.4 HIGH

8.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/714e59b5456e4d6e4295a9968c564abe193f461c
https://git.kernel.org/stable/c/785298ab6b802afa75089239266b6bbea590809c
https://git.kernel.org/stable/c/d0aac2363549e12cc79b8e285f13d5a9f42fd08e

Configurations

No configuration.

History

No history.

Information

Published : 2024-06-24 14:15

Updated : 2024-07-03 02:04

NVD link : CVE-2024-38384

Mitre link : CVE-2024-38384

CVE.ORG link : CVE-2024-38384

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2024-38384", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.5}]}, "published": "2024-06-24T14:15:12.547", "references": [{"url": "https://git.kernel.org/stable/c/714e59b5456e4d6e4295a9968c564abe193f461c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/785298ab6b802afa75089239266b6bbea590809c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d0aac2363549e12cc79b8e285f13d5a9f42fd08e", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: fix list corruption from reorder of WRITE ->lqueued\n\n__blkcg_rstat_flush() can be run anytime, especially when blk_cgroup_bio_start\nis being executed.\n\nIf WRITE of `->lqueued` is re-ordered with READ of 'bisc->lnode.next' in\nthe loop of __blkcg_rstat_flush(), `next_bisc` can be assigned with one\nstat instance being added in blk_cgroup_bio_start(), then the local\nlist in __blkcg_rstat_flush() could be corrupted.\n\nFix the issue by adding one barrier."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: blk-cgroup: corrupci\u00f3n de la lista de arreglos debido al reordenamiento de WRITE ->lqueued __blkcg_rstat_flush() se puede ejecutar en cualquier momento, especialmente cuando se est\u00e1 ejecutando blk_cgroup_bio_start. Si la ESCRITURA de `->lqueued` se reordena con la READ de 'bisc->lnode.next' en el bucle de __blkcg_rstat_flush(), se puede asignar `next_bisc` agregando una instancia de estad\u00edstica en blk_cgroup_bio_start(), entonces el La lista local en __blkcg_rstat_flush() podr\u00eda estar da\u00f1ada. Solucione el problema agregando una barrera."}], "lastModified": "2024-07-03T02:04:57.820", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}