Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-43400

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
08/05/2026
Last modified:
21/05/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amdgpu: add upper bound check on user inputs in signal ioctl<br /> <br /> Huge input values in amdgpu_userq_signal_ioctl can lead to a OOM and<br /> could be exploited.<br /> <br /> So check these input value against AMDGPU_USERQ_MAX_HANDLES<br /> which is big enough value for genuine use cases and could<br /> potentially avoid OOM.<br /> <br /> (cherry picked from commit be267e15f99bc97cbe202cd556717797cdcf79a5)

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.16 (including) 6.18.19 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.19 (including) 6.19.9 (excluding)
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools