CVE-2025-21770

In the Linux kernel, the following vulnerability has been resolved: iommu: Fix potential memory leak in iopf_queue_remove_device() The iopf_queue_remove_device() helper removes a device from the per-iommu iopf queue when PRI is disabled on the device. It responds to all outstanding iopf's with an IOMMU_PAGE_RESP_INVALID code and detaches the device from the queue. However, it fails to release the group structure that represents a group of iopf's awaiting for a response after responding to the hardware. This can cause a memory leak if iopf_queue_remove_device() is called with pending iopf's. Fix it by calling iopf_free_group() after the iopf group is responded.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/90d5429cd2921ca2714684ed525898d431bb9283	Patch
https://git.kernel.org/stable/c/9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08	Patch
https://git.kernel.org/stable/c/db60d2d896a17decd58d143eef92cf22eb0a0176	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc2::::::

History

05 Mar 2025, 18:47

Type	Values Removed	Values Added
CWE		CWE-401
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
First Time		Linux Linux linux Kernel
Summary		(es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu: Se corrige una posible pérdida de memoria en iopf_queue_remove_device() El asistente iopf_queue_remove_device() elimina un dispositivo de la cola de iopf por iommu cuando PRI está deshabilitado en el dispositivo. Responde a todos los iopf pendientes con un código IOMMU_PAGE_RESP_INVALID y separa el dispositivo de la cola. Sin embargo, no libera la estructura de grupo que representa un grupo de iopf que esperan una respuesta después de responder al hardware. Esto puede provocar una pérdida de memoria si se llama a iopf_queue_remove_device() con iopf pendientes. Corríjalo llamando a iopf_free_group() después de que se responda al grupo de iopf.
References	~~() https://git.kernel.org/stable/c/90d5429cd2921ca2714684ed525898d431bb9283 -~~	() https://git.kernel.org/stable/c/90d5429cd2921ca2714684ed525898d431bb9283 - Patch
References	~~() https://git.kernel.org/stable/c/9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08 -~~	() https://git.kernel.org/stable/c/9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08 - Patch
References	~~() https://git.kernel.org/stable/c/db60d2d896a17decd58d143eef92cf22eb0a0176 -~~	() https://git.kernel.org/stable/c/db60d2d896a17decd58d143eef92cf22eb0a0176 - Patch
CPE		cpe:2.3:o:linux:linux_kernel:6.14:rc2:::::: cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.14:rc1::::::

27 Feb 2025, 03:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-02-27 03:15

Updated : 2025-03-05 18:47

NVD link : CVE-2025-21770

Mitre link : CVE-2025-21770

CVE.ORG link : CVE-2025-21770

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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5.5 /10