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diracdec: check return code of get_buffer_with_edge 

If it fails, buffers aren't allocated, causing NULL pointer dereferencing.

Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun 2016-11-04 19:00:17 +01:00
parent 24d20496d2
commit db79dedb1a
1 changed files with 3 additions and 1 deletions
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4
libavcodec/diracdec.c
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@ -1975,7 +1975,9 @@ static int dirac_decode_picture_header(DiracContext *s)
for (j = 0; j < MAX_FRAMES; j++)
if (!s->all_frames[j].avframe->data[0]) {
s->ref_pics[i] = &s->all_frames[j];
get_buffer_with_edge(s->avctx, s->ref_pics[i]->avframe, AV_GET_BUFFER_FLAG_REF);
ret = get_buffer_with_edge(s->avctx, s->ref_pics[i]->avframe, AV_GET_BUFFER_FLAG_REF);
if (ret < 0)
return ret;
break;
}