loadLeader(): fix memleak in error code path

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52376
MapServer · Oct 13, 2022 · 8f0e2b7 · 8f0e2b7
1 parent aafd36d
commit 8f0e2b7
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/mapfile.c b/mapfile.c
@@ -1529,7 +1529,13 @@ static int loadLeader(labelLeaderObj *leader)
         if(msGrowLeaderStyles(leader) == NULL)
           return(-1);
         initStyle(leader->styles[leader->numstyles]);
-        if(loadStyle(leader->styles[leader->numstyles]) != MS_SUCCESS) return(-1);
+        if(loadStyle(leader->styles[leader->numstyles]) != MS_SUCCESS)
+        {
+            freeStyle(leader->styles[leader->numstyles]);
+            free(leader->styles[leader->numstyles]);
+            leader->styles[leader->numstyles] = NULL;
+            return -1;
+        }
         leader->numstyles++;
         break;
       default: