d80ffd4823
[ Upstream commit 37882100cd0629d830db430a8cee0b724fe1fea3 ] When KASAN is enabled, below log might be dumped with Intel EHL hardware: [ 48.583597] ================================================================== [ 48.585921] BUG: KASAN: slab-out-of-bounds in hdac_hda_dai_hw_params+0x20a/0x22b [snd_soc_hdac_hda] [ 48.587995] Write of size 4 at addr ffff888103489708 by task pulseaudio/759 [ 48.589237] CPU: 2 PID: 759 Comm: pulseaudio Tainted: G U E 5.15.71-intel-ese-standard-lts #9 [ 48.591272] Hardware name: Intel Corporation Elkhart Lake Embedded Platform/ElkhartLake LPDDR4x T3 CRB, BIOS EHLSFWI1.R00.4251.A01.2206130432 06/13/2022 [ 48.593010] Call Trace: [ 48.593648] <TASK> [ 48.593852] dump_stack_lvl+0x34/0x48 [ 48.594404] print_address_description.constprop.0+0x1f/0x140 [ 48.595174] ? hdac_hda_dai_hw_params+0x20a/0x22b [snd_soc_hdac_hda] [ 48.595868] ? hdac_hda_dai_hw_params+0x20a/0x22b [snd_soc_hdac_hda] [ 48.596519] kasan_report.cold+0x7f/0x11b [ 48.597003] ? hdac_hda_dai_hw_params+0x20a/0x22b [snd_soc_hdac_hda] [ 48.597885] hdac_hda_dai_hw_params+0x20a/0x22b [snd_soc_hdac_hda] HDAC_LAST_DAI_ID is last index id, pcm buffer array size should be +1 to avoid out of bound access. Fixes: 608b8c36c371 ("ASoC: hdac_hda: add support for HDMI/DP as a HDA codec") Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Junxiao Chang <junxiao.chang@intel.com> Signed-off-by: Furong Zhou <furong.zhou@intel.com> Link: https://lore.kernel.org/r/20221109234023.3111035-1-junxiao.chang@intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.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.