6.9-stable review patch. If anyone has any objections, please let me know.
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From: Cezary Rojewski cezary.rojewski@intel.com
[ Upstream commit c7e832cabe635df47c2bf6df7801e97bf3045b1e ]
While stream_tag for CLDMA on SKL-based platforms is always 1, function hda_cldma_setup() uses AZX_SD_CTL_STRM() macro which does: stream_tag << 20
what combined with stream_tag type of 'unsigned int' generates a potential overflow issue. Update the field type to fix that.
Fixes: 45864e49a05a ("ASoC: Intel: avs: Implement CLDMA transfer") Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com Link: https://msgid.link/r/20240405090929.1184068-8-cezary.rojewski@intel.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/intel/avs/cldma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/avs/cldma.c b/sound/soc/intel/avs/cldma.c index d7a9390b5e483..585579840b646 100644 --- a/sound/soc/intel/avs/cldma.c +++ b/sound/soc/intel/avs/cldma.c @@ -35,7 +35,7 @@ struct hda_cldma {
unsigned int buffer_size; unsigned int num_periods; - unsigned int stream_tag; + unsigned char stream_tag; void __iomem *sd_addr;
struct snd_dma_buffer dmab_data;