CVE-2026-43248

In the Linux kernel, the following vulnerability has been resolved: vhost: move vdpa group bound check to vhost_vdpa Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them. While we're at it, fix a bug in vdpa_sim where a valid ASID can be assigned to a group equal to ngroups, causing an out of bound write.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9	Patch
https://git.kernel.org/stable/c/566899af053246406f2faf931044d2b0af8f34d2
https://git.kernel.org/stable/c/69ec8dd6696069c2f18430d0e05f81d604484ee8
https://git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454	Patch
https://git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede	Patch
https://git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0	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::::::::

History

11 Nov 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: vhost: mover la verificación de límites del grupo vdpa a vhost_vdpa Eliminar la duplicación al consolidarlos aquí. Esto reduce la posibilidad de que un controlador padre los omita. Ya que estamos en ello, corregir un error en vdpa_sim donde un ASID válido puede ser asignado a un grupo igual a ngroups, causando una escritura fuera de límites.

30 Oct 2026, 13:18

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/69ec8dd6696069c2f18430d0e05f81d604484ee8 -

21 Oct 2026, 13:18

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/566899af053246406f2faf931044d2b0af8f34d2 -

Information

Published : 2026-05-06 12:16

Updated : 2026-11-11 20:10

NVD link : CVE-2026-43248

Mitre link : CVE-2026-43248

CVE.ORG link : CVE-2026-43248

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

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