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exr: make sure that data_size is not bigger than expected
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@ -270,7 +270,8 @@ static int decode_block(AVCodecContext *avctx, void *tdata,
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uncompressed_size = s->scan_line_size * FFMIN(s->scan_lines_per_block, s->ymax - line + 1);
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if ((s->compr == EXR_RAW && (data_size != uncompressed_size ||
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line_offset > buf_size - uncompressed_size)) ||
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(s->compr != EXR_RAW && line_offset > buf_size - data_size)) {
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(s->compr != EXR_RAW && (data_size > uncompressed_size ||
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line_offset > buf_size - data_size))) {
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return AVERROR_INVALIDDATA;
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}
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