File lcms-bnc479606-2.patch of Package lcms

--- lcms-1.17/include/lcms.h
+++ lcms-1.17/include/lcms.h
@@ -1418,7 +1418,10 @@
 LCMS_INLINE void* _cmsCalloc(size_t nmemb, size_t size)
 {
     size_t alloc = nmemb * size;
-    if (alloc < nmemb || alloc < size) {
+    if (size == 0) {
+      return _cmsMalloc(0);
+    }
+    if (alloc / size != nmemb) {
         return NULL;
     }
     return _cmsMalloc(alloc);
--- lcms-1.17/src/cmsio0.c
+++ lcms-1.17/src/cmsio0.c
@@ -77,7 +77,11 @@
      size_t len = size * count;
      size_t extent = ResData -> Pointer + len;
      
-      if (len < size || len < count) {
+      if (len == 0) {
+          return 0;
+      }
+
+      if (len / size != count) {
           cmsSignalError(LCMS_ERRC_ABORTED, "Read from memory error. Integer overflow with count / size.");
           return 0;
       }
--- lcms-1.17/src/cmslut.c
+++ lcms-1.17/src/cmslut.c
@@ -200,14 +200,14 @@
       oldCalc = calc;
       calc *= NewLUT -> cLutPoints;
 
-      if (calc < oldCalc || calc < NewLUT -> cLutPoints) {
+      if (calc / NewLUT -> cLutPoints != oldCalc) {
         return FALSE;
       }
     }
 
     oldCalc = calc;
     calc *= NewLUT -> OutputChan;
-    if (calc < oldCalc || calc < NewLUT -> OutputChan) {
+    if (NewLUT -> OutputChan && calc / NewLUT -> OutputChan != oldCalc) {
       return FALSE;
     }