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avcodec/utils: Check that the video data[] arrays are NULL on the input to get_buffer_internal()

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This should return an error to the decoder if the struct it tried to getbuffer is dirty

Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-02-26 12:59:08 +01:00
parent bdf7093bd0
commit d39b770aa2
1 changed files with 5 additions and 0 deletions
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5
libavcodec/utils.c
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@ -870,6 +870,11 @@ static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
override_dimensions = 0;
}
if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
return AVERROR(EINVAL);
}
}
ret = ff_decode_frame_props(avctx, frame);
if (ret < 0)