[PATCH 0/6] ASoC: Sanity checks and soc-topology updates

Cezary Rojewski cezary.rojewski at intel.com
Fri Oct 15 18:12:51 CEST 2021


Couple of soc-topology related changes and a use-after-free fix. Said fix
and two sanity checks for soc-topology lead the way. While the
use-after-free is quite obvious, the sanity checks are here to cover for
cases where user malformed the topology file -or- access to filesystem
somehow got interrupted during copy operation. We shouldn't be reading
outside the file boundary.

Afterward a change to soc_tplg_add_kcontrol(): device being passed to
soc_tplg_add_dcontrol() from comp->dev to tplg->dev which corrects
dev_xxx() invoked later on.
Also, device used for topology memory allocations from component->dev to
component->card->dev so memory gets freed each time card device (usually
platform device) is removed rather than the component device what may
happen less frequently.

Dummy component gets smarter and no longer overrides hw_params if
there are other components accociated with related struct
snd_soc_pcm_runtime instance.

Amadeusz Sławiński (5):
  ASoC: core: Remove invalid snd_soc_component_set_jack call
  ASoC: topology: Check for dapm widget completeness
  ASoC: topology: Use correct device for prints
  ASoC: topology: Change topology device to card device
  ASoC: Stop dummy from overriding hwparams

Cezary Rojewski (1):
  ASoC: topology: Add header payload_size verification

 sound/soc/soc-core.c     |  3 ---
 sound/soc/soc-topology.c | 34 ++++++++++++++++++++++++++++++----
 sound/soc/soc-utils.c    | 13 +++++++++++++
 3 files changed, 43 insertions(+), 7 deletions(-)

-- 
2.25.1



More information about the Alsa-devel mailing list