diff -Npur opencv-4.5.2/3rdparty/libtiff/tif_dirread.c opencv-4.5.2-new/3rdparty/libtiff/tif_dirread.c
--- opencv-4.5.2/3rdparty/libtiff/tif_dirread.c	2021-04-02 19:23:54.000000000 +0800
+++ opencv-4.5.2-new/3rdparty/libtiff/tif_dirread.c	2022-05-21 14:44:25.639756094 +0800
@@ -4173,7 +4173,8 @@ TIFFReadDirectory(TIFF* tif)
                     goto bad;
                 }
 
-                memcpy(new_sampleinfo, tif->tif_dir.td_sampleinfo, old_extrasamples * sizeof(uint16));
+				if (old_extrasamples > 0)
+                    memcpy(new_sampleinfo, tif->tif_dir.td_sampleinfo, old_extrasamples * sizeof(uint16));
                 _TIFFsetShortArray(&tif->tif_dir.td_sampleinfo, new_sampleinfo, tif->tif_dir.td_extrasamples);
                 _TIFFfree(new_sampleinfo);
         }
@@ -5765,8 +5766,9 @@ TIFFFetchStripThing(TIFF* tif, TIFFDirEn
 			_TIFFfree(data);
 			return(0);
 		}
-                _TIFFmemcpy(resizeddata,data,(uint32)dir->tdir_count*sizeof(uint64));
-                _TIFFmemset(resizeddata+(uint32)dir->tdir_count,0,(nstrips-(uint32)dir->tdir_count)*sizeof(uint64));
+		if( dir->tdir_count )
+			_TIFFmemcpy(resizeddata,data, (uint32)dir->tdir_count * sizeof(uint64));
+		_TIFFmemset(resizeddata+(uint32)dir->tdir_count, 0, (nstrips - (uint32)dir->tdir_count) * sizeof(uint64));
 		_TIFFfree(data);
 		data=resizeddata;
 	}