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99293be855
commit 47825b1646a6a9eca0f90baa3d4f98947c2add96 upstream.
Fix the Hantro G2 HEVC decoder so that we use DPB index 0 whenever a
ninvalid index is received from user space. This protects the hardware
from doing faulty memory access which then leads to bus errors.
To be noted that when a reference is missing, userspace such as GStreamer
passes an invalid DPB index of 255. This issue was found by seeking to a
CRA picture using GStreamer. The framework is currently missing the code
to skip over RASL pictures placed after the CRA. This situation can also
occur while doing live streaming over lossy transport.
Fixes: cb5dd5a0fa ("media: hantro: Introduce G2/HEVC decoder")
Cc: stable@vger.kernel.org
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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 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.