In directory 'PC', file '_msi.c', I found another call to
malloc() which was not checked for a return value of NULL
which would indicate failure.  The new patch file is below:

--- _msi.c.orig 2015-04-02 15:01:02.882326352 -0700
+++ _msi.c      2015-04-04 16:36:56.919605881 -0700
@@ -324,6 +324,10 @@
     code = MsiRecordGetInteger(err, 1); /* XXX code */
     if (MsiFormatRecord(0, err, res, &size) == ERROR_MORE_DATA) {
         res = malloc(size+1);
+       if (res == NULL) /* malloc() failed, out of memory... */
+           PyErr_SetString(MSIError, "out of memory");
+           return NULL;
+       }
         MsiFormatRecord(0, err, res, &size);
         res[size]='\0';
     }
@@ -547,6 +551,10 @@
         &fval, sval, &ssize);
     if (status == ERROR_MORE_DATA) {
         sval = malloc(ssize);
+       if (sval == NULL) { /* malloc() failed, out of memory... */
+           PyErr_SetString(MSIError, "out of memory");
+           return NULL;
+       }
         status = MsiSummaryInfoGetProperty(si->h, field, &type, &ival,
             &fval, sval, &ssize);
     }