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xvag: prevent overflow during block alignment calculation 

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun 2017-01-06 20:31:26 +01:00
parent 74bd17d316
commit cba4f0e97e
1 changed files with 2 additions and 1 deletions
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3
libavformat/xvag.c
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@ -20,6 +20,7 @@
*/
#include "libavutil/bswap.h"
#include "libavcodec/internal.h"
#include "avformat.h"
#include "internal.h"
@ -68,7 +69,7 @@ static int xvag_read_header(AVFormatContext *s)
if (st->codecpar->sample_rate <= 0)
return AVERROR_INVALIDDATA;
if (st->codecpar->channels <= 0)
if (st->codecpar->channels <= 0 || st->codecpar->channels > FF_SANE_NB_CHANNELS)
return AVERROR_INVALIDDATA;
switch (codec) {