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avcodec/tiff: Perform multiply in tiff_unpack_lzma() as 64bit

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This should make no difference as the value should not be able to be that large
but its more correct this way

Fixes CID1348138

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f48b6b8b91d63148ef50d096688ed7226cd6ddf4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-01-08 16:37:56 +01:00
parent 0a13449b28
commit cc4a13b8a7
1 changed files with 1 additions and 1 deletions
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libavcodec/tiff.c
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@ -408,7 +408,7 @@ static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride
const uint8_t *src, int size, int width, int lines,
int strip_start, int is_yuv)
{
uint64_t outlen = width * lines;
uint64_t outlen = width * (uint64_t)lines;
int ret, line;
uint8_t *buf = av_malloc(outlen);
if (!buf)