libCom: Fix use-after-free bug in macCore.c

2014-10-30 17:55:12 -05:00
parent 6c14dc194c
commit 09ff608ca9
1 changed files with 2 additions and 1 deletions
--- a/src/libCom/macLib/macCore.c
+++ b/src/libCom/macLib/macCore.c
@@ -259,9 +259,10 @@ epicsShareAPI macPutValue(
         * a macro from all scopes will still be needed by iocshEnvClear
         */
        while ( ( entry = lookup( handle, name, FALSE ) ) != NULL ) {
+            int done = strcmp(entry->type, "environment variable") == 0;
            delete( handle, entry );
            
-            if (strcmp(entry->type, "environment variable") == 0)
+            if (done)
                break;
        }