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

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CVE-2026-43206

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
06/05/2026
Last modified:
08/05/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()<br /> <br /> The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8<br /> bytes via memset without checking the buffer size parameter. This allows<br /> unprivileged userspace to trigger an out-of bounds kernel memory write<br /> by passing a small buffer, leading to potential privilege<br /> escalation.

Impact

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
7.80
Severity 3.x
HIGH

References to Advisories, Solutions, and Tools