From 368f11b41c726df5d888124330855e1042db9603 Mon Sep 17 00:00:00 2001
From: erouault <erouault>
Date: Thu, 12 Jan 2017 19:23:20 +0000
Subject: [PATCH 3/8] * libtiff/tif_ojpeg.c: fix leak in
 OJPEGReadHeaderInfoSecTablesQTable, OJPEGReadHeaderInfoSecTablesDcTable and
 OJPEGReadHeaderInfoSecTablesAcTable
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* libtiff/tif_ojpeg.c: fix leak in OJPEGReadHeaderInfoSecTablesAcTable when read fails. Patch by Nicolás Peña. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2659
---
 libtiff/tif_ojpeg.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
index 0e69a46..3421a05 100644
--- a/libtiff/tif_ojpeg.c
+++ b/libtiff/tif_ojpeg.c
@@ -1790,7 +1790,10 @@ OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif)
 			TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET); 
 			p=(uint32)TIFFReadFile(tif,&ob[sizeof(uint32)+5],64);
 			if (p!=64)
+                        {
+                                _TIFFfree(ob);
 				return(0);
+                        }
 			sp->qtable[m]=ob;
 			sp->sof_tq[m]=m;
 		}
@@ -1854,7 +1857,10 @@ OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif)
 				rb[sizeof(uint32)+5+n]=o[n];
 			p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q);
 			if (p!=q)
+                        {
+                                _TIFFfree(rb);
 				return(0);
+                        }
 			sp->dctable[m]=rb;
 			sp->sos_tda[m]=(m<<4);
 		}
@@ -1918,7 +1924,10 @@ OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif)
 				rb[sizeof(uint32)+5+n]=o[n];
 			p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q);
 			if (p!=q)
+                        {
+                                _TIFFfree(rb);
 				return(0);
+                        }
 			sp->actable[m]=rb;
 			sp->sos_tda[m]=(sp->sos_tda[m]|m);
 		}
-- 
2.7.4