Bug 2419954 (CVE-2025-40277) - CVE-2025-40277 kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE
Summary: CVE-2025-40277 kernel: drm/vmwgfx: Validate command header size against SVGA_...
Keywords:
Status: NEW
Alias: CVE-2025-40277
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-08 07:11 UTC by OSIDB Bzimport
Modified: 2025-12-08 14:27 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-12-08 07:11:33 UTC 
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.
Comment 1 TEJ RATHI 2025-12-08 13:13:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120717-CVE-2025-40277-d511@gregkh/T
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