[PATCH v2] ASoC: Intel: sof_rt5682: fix out-of-bounds array access
Starting from ADL platform we have four HDMI PCM devices which exceeds the size of sof_hdmi array. Since each sof_hdmi_pcm structure represents one HDMI PCM device, we remove the sof_hdmi array and add a new member hdmi_jack to the sof_hdmi_pcm structure to fix the out-of-bounds problem.
Signed-off-by: Brent Lu brent.lu@intel.com Reviewed-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com --- sound/soc/intel/boards/sof_rt5682.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/sound/soc/intel/boards/sof_rt5682.c b/sound/soc/intel/boards/sof_rt5682.c index a24fb71d5ff3..1384716c6360 100644 --- a/sound/soc/intel/boards/sof_rt5682.c +++ b/sound/soc/intel/boards/sof_rt5682.c @@ -69,11 +69,10 @@ static unsigned long sof_rt5682_quirk = SOF_RT5682_MCLK_EN |
static int is_legacy_cpu;
-static struct snd_soc_jack sof_hdmi[3]; - struct sof_hdmi_pcm { struct list_head head; struct snd_soc_dai *codec_dai; + struct snd_soc_jack hdmi_jack; int device; };
@@ -447,7 +446,6 @@ static int sof_card_late_probe(struct snd_soc_card *card) char jack_name[NAME_SIZE]; struct sof_hdmi_pcm *pcm; int err; - int i = 0;
/* HDMI is not supported by SOF on Baytrail/CherryTrail */ if (is_legacy_cpu || !ctx->idisp_codec) @@ -468,17 +466,15 @@ static int sof_card_late_probe(struct snd_soc_card *card) snprintf(jack_name, sizeof(jack_name), "HDMI/DP, pcm=%d Jack", pcm->device); err = snd_soc_card_jack_new(card, jack_name, - SND_JACK_AVOUT, &sof_hdmi[i]); + SND_JACK_AVOUT, &pcm->hdmi_jack);
if (err) return err;
err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, - &sof_hdmi[i]); + &pcm->hdmi_jack); if (err < 0) return err; - - i++; }
if (sof_rt5682_quirk & SOF_MAX98373_SPEAKER_AMP_PRESENT) {
On Fri, 1 Jul 2022 22:15:17 +0800, Brent Lu wrote:
Starting from ADL platform we have four HDMI PCM devices which exceeds the size of sof_hdmi array. Since each sof_hdmi_pcm structure represents one HDMI PCM device, we remove the sof_hdmi array and add a new member hdmi_jack to the sof_hdmi_pcm structure to fix the out-of-bounds problem.
[...]
Applied to
broonie/sound.git for-linus
Thanks!
[1/1] ASoC: Intel: sof_rt5682: fix out-of-bounds array access commit: fba5a02a4c028dad32299aa723716349f93845eb
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.
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Thanks, Mark
participants (2)
-
Brent Lu
-
Mark Brown