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avcodec/bmp: fix integer overflow in checking header sizes

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-07-04 14:37:01 +02:00
parent c277ab6b78
commit bd8b6ed96d
1 changed files with 1 additions and 1 deletions
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libavcodec/bmp.c
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@ -70,7 +70,7 @@ static int bmp_decode_frame(AVCodecContext *avctx,
hsize = bytestream_get_le32(&buf); /* header size */
ihsize = bytestream_get_le32(&buf); /* more header size */
if (ihsize + 14 > hsize) {
if (ihsize + 14LL > hsize) {
av_log(avctx, AV_LOG_ERROR, "invalid header size %u\n", hsize);
return AVERROR_INVALIDDATA;
}