CVE-2026-43400

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: add upper bound check on user inputs in signal ioctl Huge input values in amdgpu_userq_signal_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. (cherry picked from commit be267e15f99bc97cbe202cd556717797cdcf79a5)

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/46630d966b99b0fc6cb01fef4110587f3375a0c0	Patch
https://git.kernel.org/stable/c/6fff5204d8aa26b1be50b6427f833bd3e8899c4f	Patch
https://git.kernel.org/stable/c/ea78f8c68f4f6211c557df49174c54d167821962	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 comprobación de límite superior en las entradas de usuario en ioctl de señal Valores de entrada muy grandes en amdgpu_userq_signal_ioctl pueden llevar a un OOM y podrían ser explotados. Así que comprueba estos valores de entrada contra AMDGPU_USERQ_MAX_HANDLES, que es un valor lo suficientemente grande para casos de uso genuinos y podría potencialmente evitar OOM. (seleccionado del commit be267e15f99bc97cbe202cd556717797cdcf79a5)

Information

Published : 2026-05-08 15:16

Updated : 2026-11-11 20:10

NVD link : CVE-2026-43400

Mitre link : CVE-2026-43400

CVE.ORG link : CVE-2026-43400

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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