commit 4ecc24a84d7e0254efd150ec23e0b89638386516 upstream. If userspace provides an unknown or invalid handle anywhere in the handle array the rest of the driver will not handle that well. Fix it by checking handle was looked up successfully or otherwise fail the extension by jumping into the existing unwind. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Fixes: bae7cb5d6800 ("drm/v3d: Create a CPU job extension for the reset performance query job") Cc: Maíra Canal <mcanal@igalia.com> Cc: Iago Toral Quiroga <itoral@igalia.com> Cc: stable@vger.kernel.org # v6.8+ Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240711135340.84617-6-tursulin@igalia.com (cherry picked from commit a546b7e4d73c23838d7e4d2c92882b3ca902d213) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 reStructuredText 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.
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