Fix a memory leak in libtiff.

third_party/libtiff/0005-Leak-TIFFFetchStripThing.patch

Index: third_party/libtiff/0005-Leak-TIFFFetchStripThing.patch
diff --git a/third_party/libtiff/0005-Leak-TIFFFetchStripThing.patch b/third_party/libtiff/0005-Leak-TIFFFetchStripThing.patch
new file mode 100644
index 0000000000000000000000000000000000000000..0f9b16873f302de7e7b06b9f943ce2240bc0b6e1
--- /dev/null
+++ b/third_party/libtiff/0005-Leak-TIFFFetchStripThing.patch
@@ -0,0 +1,13 @@
+diff --git a/third_party/libtiff/tif_dirread.c b/third_party/libtiff/tif_dirread.c
+index a0dc68b..5ef3264 100644
+--- a/third_party/libtiff/tif_dirread.c
++++ b/third_party/libtiff/tif_dirread.c
+@@ -5372,6 +5372,8 @@ TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, uint32 nstrips, uint64** lpp)
+ 	static const char module[] = "TIFFFetchStripThing";
+ 	enum TIFFReadDirEntryErr err;
+ 	uint64* data;
++	_TIFFfree(*lpp);
++	*lpp = 0;
+ 	err=TIFFReadDirEntryLong8Array(tif,dir,&data);
+ 	if (err!=TIFFReadDirEntryErrOk)
+ 	{