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avformat/adtsenc: return value check for init_get_bits in adts_decode_extradata 

As the second argument for init_get_bits (buf) can be crafted, a return value check for this function call is necessary.
'buf' is  part of  'AVPacket pkt'.
replace init_get_bits with init_get_bits8.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9ffa49496d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
maryam ebrahimzadeh 2021-08-04 16:15:18 -04:00 committed by Michael Niedermayer
parent ad3df92f53
commit db3dd0545c
1 changed files with 4 additions and 2 deletions
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6
libavformat/adtsenc.c
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@ -50,9 +50,11 @@ static int adts_decode_extradata(AVFormatContext *s, ADTSContext *adts, const ui
GetBitContext gb;
PutBitContext pb;
MPEG4AudioConfig m4ac;
int off;
int off, ret;
init_get_bits(&gb, buf, size * 8);
ret = init_get_bits8(&gb, buf, size);
if (ret < 0)
return ret;
off = avpriv_mpeg4audio_get_config(&m4ac, buf, size * 8, 1);
if (off < 0)
return off;