vulnerability

Red Hat: CVE-2025-40277: kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE (Multiple Advisories)

Name: Red Hat: CVE-2025-40277: kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE (Multiple Advisories)
Creator: Red Hat
Published: 2025-12-06T00:00:00.000Z
Keywords: CVE, Red Hat, 2025, 40277, kernel, redhat-upgrade-kernel, redhat-upgrade-kernel-rt, Severity 7

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Severity

CVSS

(AV:L/AC:L/Au:S/C:C/I:C/A:C)

Published

Dec 6, 2025

Added

Jan 15, 2026

Modified

Jun 18, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

This data originates from userspace and is used in buffer offset
calculations which could potentially overflow causing an out-of-bounds
access.

Solutions

redhat-upgrade-kernelredhat-upgrade-kernel-rt

References

Rapid7 Labs

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