diff --git a/third_party/libtiff/tif_ojpeg.c b/third_party/libtiff/tif_ojpeg.c
index e128887bf..465f9ebc4 100644
--- a/third_party/libtiff/tif_ojpeg.c
+++ b/third_party/libtiff/tif_ojpeg.c
@@ -1791,7 +1791,12 @@ 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);
+			}
+			if (sp->qtable[m]!=0)
+				_TIFFfree(sp->qtable[m]);
 			sp->qtable[m]=ob;
 			sp->sof_tq[m]=m;
 		}
@@ -1860,7 +1855,12 @@ 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);
+			}
+			if (sp->dctable[m]!=0)
+				_TIFFfree(sp->dctable[m]);
 			sp->dctable[m]=rb;
 			sp->sos_tda[m]=(m<<4);
 		}
@@ -1929,7 +1919,12 @@ 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);
+			}
+			if (sp->actable[m])
+				_TIFFfree(sp->actable[m]);
 			sp->actable[m]=rb;
 			sp->sos_tda[m]=(sp->sos_tda[m]|m);
 		}