[PATCH] ASoC: hdac_hda: fix hda pcm buffer overflow issue

[Mark Brown]

On Thu, 10 Nov 2022 07:40:23 +0800, Junxiao Chang wrote:
> 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]
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: hdac_hda: fix hda pcm buffer overflow issue
      commit: 37882100cd0629d830db430a8cee0b724fe1fea3

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark