Fix a memory leak in libtiff.
BUG=633387
Review-Url: https://codereview.chromium.org/2204793002
diff --git a/third_party/libtiff/0005-Leak-TIFFFetchStripThing.patch b/third_party/libtiff/0005-Leak-TIFFFetchStripThing.patch
new file mode 100644
index 0000000..0f9b168
--- /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)
+ {
diff --git a/third_party/libtiff/README.pdfium b/third_party/libtiff/README.pdfium
index 09577f9..05e4965 100644
--- a/third_party/libtiff/README.pdfium
+++ b/third_party/libtiff/README.pdfium
@@ -14,3 +14,4 @@
0002-CVE-2015-8665-8683.patch: Security fixes
0003-CVE-2015-8781-8782-8783.patch: Security fixes
0004-CVE-2015-8784.patch: Security fixes
+0005-Leak-TIFFFetchStripThing.patch: Fix a memory leak
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 @@
static const char module[] = "TIFFFetchStripThing";
enum TIFFReadDirEntryErr err;
uint64* data;
+ _TIFFfree(*lpp);
+ *lpp = 0;
err=TIFFReadDirEntryLong8Array(tif,dir,&data);
if (err!=TIFFReadDirEntryErrOk)
{
