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Ian Forbes 0403cec2af drm/vmwgfx: Validate vmw_surface_metadata::array_size
commit a4f55260f7 upstream.

This field comes from userspace and should be validated against specific
limits depending on which Shader Model (SM) is available.

Fixes: 504901dbb0 ("drm/vmwgfx: Refactor surface_define to use vmw_surface_metadata")
Reported-by: Zero Day Initiative <zdi-disclosures@trendmicro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Reviewed-by: Maaz Mombasawala <maaz.mombasawala@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patch.msgid.link/20260623193314.506257-1-ian.forbes@broadcom.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-08-19 17:14:00 +02:00
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README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.