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avfilter/af_stereowiden: Check length 

Fixes: out of array access
Fixes: tickets/10746/poc13ffmpeg

Found-by: Zeng Yunxiang
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 50f0f8c53c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-12-23 04:03:01 +01:00
parent e65bae8a19
commit cfcc45920e
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1 changed files with 2 additions and 0 deletions
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2
libavfilter/af_stereowiden.c
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@ -74,6 +74,8 @@ static int config_input(AVFilterLink *inlink)
s->length = s->delay * inlink->sample_rate / 1000; s->length = s->delay * inlink->sample_rate / 1000;
s->length *= 2; s->length *= 2;
if (s->length == 0)
return AVERROR(EINVAL);
s->buffer = av_calloc(s->length, sizeof(*s->buffer)); s->buffer = av_calloc(s->length, sizeof(*s->buffer));
if (!s->buffer) if (!s->buffer)
return AVERROR(ENOMEM); return AVERROR(ENOMEM);