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Diffstat (limited to 'vm_trace.c')
-rw-r--r--vm_trace.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/vm_trace.c b/vm_trace.c
index 9165e37bf36..36fa2327ea0 100644
--- a/vm_trace.c
+++ b/vm_trace.c
@@ -443,6 +443,8 @@ static void call_trace_func(rb_event_flag_t, VALUE data, VALUE self, ID id, VALU
static VALUE
set_trace_func(VALUE obj, VALUE trace)
{
+ rb_secure(4);
+
rb_remove_event_hook(call_trace_func);
if (NIL_P(trace)) {
@@ -479,6 +481,8 @@ static VALUE
thread_add_trace_func_m(VALUE obj, VALUE trace)
{
rb_thread_t *th;
+
+ rb_secure(4);
GetThreadPtr(obj, th);
thread_add_trace_func(th, trace);
return trace;
@@ -498,6 +502,8 @@ static VALUE
thread_set_trace_func_m(VALUE obj, VALUE trace)
{
rb_thread_t *th;
+
+ rb_secure(4);
GetThreadPtr(obj, th);
rb_threadptr_remove_event_hook(th, call_trace_func, Qundef);