CVE-2026-43398

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: add upper bound check on user inputs in wait ioctl Huge input values in amdgpu_userq_wait_ioctl can lead to a OOM and could be exploited. So check these input value against AMDGPU_USERQ_MAX_HANDLES which is big enough value for genuine use cases and could potentially avoid OOM. v2: squash in Srini's fix (cherry picked from commit fcec012c664247531aed3e662f4280ff804d1476)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

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/3cd93bc695b3456f26f5ed52753d9071da26202a	Patch
https://git.kernel.org/stable/c/64ac7c09fc44985ec9bb6a9db740899fa40ca613	Patch
https://git.kernel.org/stable/c/b1d10508da559da2e0ca9cca6505094a7df948e1	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:7.0:rc1::::::

History

11 Nov 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: drm/amdgpu: añadir una comprobación de límite superior en las entradas de usuario en el ioctl de espera Valores de entrada muy grandes en amdgpu_userq_wait_ioctl pueden llevar a un OOM y podrían ser explotados. Así que compruebe este valor de entrada contra AMDGPU_USERQ_MAX_HANDLES, que es un valor lo suficientemente grande para casos de uso genuinos y podría potencialmente evitar OOM. v2: integrar la corrección de Srini (seleccionado del commit fcec012c664247531aed3e662f4280ff804d1476)

Information

Published : 2026-05-08 15:16

Updated : 2026-11-11 20:10

NVD link : CVE-2026-43398

Mitre link : CVE-2026-43398

CVE.ORG link : CVE-2026-43398

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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