vm: fix global scope refcount imbalance

The uc_vm_execute() API function decreases the refcount of the globals
object when finishing but does not increase it initially which leads to
a double free at main.c:155

Fix the issue by both increasing and decreasing the refcount.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 1 insertions, 0 deletions

diff --git a/vm.c b/vm.c
index 2889cce..cd71bc6 100644
--- a/vm.c
+++ b/vm.c
@@ -2182,6 +2182,7 @@ uc_vm_execute(uc_vm *vm, uc_function *fn, uc_prototype *globals, json_object *mo
 	uc_vm_status_t rv;
 
 	vm->globals = globals;
+	uc_value_get(globals ? globals->header.jso : NULL);
 
 	uc_vector_grow(&vm->callframes);