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setByteArray(): avoid potential signed integer overflow. Pointed by Hendra Gunadi. No actual problem known (which does not mean there wouldn't be any. Particularly on 32bit builds)

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Even Rouault 2019-08-16 19:47:42 +02:00
parent 4bb584a35f
commit 1302ffb350
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GPG Key ID: 33EBBFC47B3DD87D
1 changed files with 2 additions and 2 deletions
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libtiff/tif_dir.c
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@ -46,8 +46,8 @@ setByteArray(void** vpp, void* vp, size_t nmemb, size_t elem_size)
*vpp = 0;
}
if (vp) {
tmsize_t bytes = (tmsize_t)(nmemb * elem_size);
if (elem_size && bytes / elem_size == nmemb)
tmsize_t bytes = _TIFFMultiplySSize(NULL, nmemb, elem_size, NULL);
if (elem_size)
*vpp = (void*) _TIFFmalloc(bytes);
if (*vpp)
_TIFFmemcpy(*vpp, vp, bytes);