* gc.c (finalize): Null out cobj handle after calling the

destructor. This can catch some use-after-free errors.

1 files changed, 1 insertions, 0 deletions

diff --git a/gc.c b/gc.c
index 4965066a..8a870cb2 100644
--- a/gc.c
+++ b/gc.c
@@ -254,6 +254,7 @@ static void finalize(val obj)
     return;
   case COBJ:
     obj->co.ops->destroy(obj);
+    obj->co.handle = 0;
     return;
   case BGNUM:
     mp_clear(mp(obj));