check whether we own buf before freeing

tihmstar · Aug 14, 2020 · c4d55db · c4d55db
1 parent b73ab88
commit c4d55db
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/liboffsetfinder64/machopatchfinder64.cpp b/liboffsetfinder64/machopatchfinder64.cpp
@@ -163,7 +163,10 @@ void machopatchfinder64::init(){
 
         if (tryfat) {
             printf("got fat macho with first slice at %u\n", (uint32_t) (tryfat - _buf));
-            free((void*)_buf);
+            if (_freeBuf) {
+                free((void*)_buf);
+            }
+            _freeBuf = true;
             _buf = tryfat;tryfat = NULL;
         } else {
             printf("got fat macho but failed to parse\n");