mindspore/third_party/patch/libtiff/CVE-2022-0908.patch002

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diff -Npur libtiff-v4.2.0/libtiff/tif_dirread.c libtiff-v4.2.0-change/libtiff/tif_dirread.c
--- libtiff-v4.2.0/libtiff/tif_dirread.c 2020-12-20 02:44:58.000000000 +0800
+++ libtiff-v4.2.0-change/libtiff/tif_dirread.c 2022-03-21 19:27:48.016570736 +0800
@@ -5079,7 +5079,10 @@ TIFFFetchNormalTag(TIFF* tif, TIFFDirEnt
_TIFFfree(data);
return(0);
}
- _TIFFmemcpy(o,data,(uint32)dp->tdir_count);
+ if (dp->tdir_count > 0 )
+ {
+ _TIFFmemcpy(o,data,(uint32)dp->tdir_count);
+ }
o[(uint32)dp->tdir_count]=0;
if (data!=0)
_TIFFfree(data);