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ALSA: Compress - add codec parameter checks

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Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Vinod Koul 2012-09-17 11:51:26 +05:30 committed by Takashi Iwai
parent 4dc040a0b3
commit fb4a9779f1
2 changed files with 11 additions and 0 deletions
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1
include/sound/compress_params.h
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@ -72,6 +72,7 @@
#define SND_AUDIOCODEC_IEC61937 ((__u32) 0x0000000B) #define SND_AUDIOCODEC_IEC61937 ((__u32) 0x0000000B)
#define SND_AUDIOCODEC_G723_1 ((__u32) 0x0000000C) #define SND_AUDIOCODEC_G723_1 ((__u32) 0x0000000C)
#define SND_AUDIOCODEC_G729 ((__u32) 0x0000000D) #define SND_AUDIOCODEC_G729 ((__u32) 0x0000000D)
#define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_G729
/* /*
* Profile and modes are listed with bit masks. This allows for a * Profile and modes are listed with bit masks. This allows for a

10
sound/core/compress_offload.c
View file

@ -432,6 +432,16 @@ static int snd_compress_check_input(struct snd_compr_params *params)
params->buffer.fragments > SIZE_MAX / params->buffer.fragment_size) params->buffer.fragments > SIZE_MAX / params->buffer.fragment_size)
return -EINVAL; return -EINVAL;
/* now codec parameters */
if (params->codec.id == 0 || params->codec.id > SND_AUDIOCODEC_MAX)
return -EINVAL;
if (params->codec.ch_in == 0 || params->codec.ch_out == 0)
return -EINVAL;
if (!(params->codec.sample_rate & SNDRV_PCM_RATE_8000_192000))
return -EINVAL;
return 0; return 0;
} }