Raise RuntimeError if Kernel#binding is called from a non-Ruby frame

Check whether the current or previous frame is a Ruby frame in
call_trace_func before attempting to create a binding for the frame.

Fixes [Bug #18487]

Co-authored-by: Alan Wu <XrXr@users.noreply.github.com>

1 files changed, 15 insertions, 6 deletions

diff --git a/spec/ruby/optional/capi/binding_spec.rb b/spec/ruby/optional/capi/binding_spec.rb
index 966d650c46..2165705457 100644
--- a/spec/ruby/optional/capi/binding_spec.rb
+++ b/spec/ruby/optional/capi/binding_spec.rb
@@ -8,12 +8,21 @@ describe "CApiBindingSpecs" do
   end
 
   describe "Kernel#binding" do
-    it "gives the top-most Ruby binding when called from C" do
-      foo = 14
-      b = @b.get_binding
-      b.local_variable_get(:foo).should == 14
-      b.local_variable_set :foo, 12
-      foo.should == 12
+    ruby_version_is '3.2' do
+      it "raises when called from C" do
+        foo = 14
+        -> { @b.get_binding }.should raise_error(RuntimeError)
+      end
+    end
+
+    ruby_version_is ''...'3.2' do
+      it "gives the top-most Ruby binding when called from C" do
+        foo = 14
+        b = @b.get_binding
+        b.local_variable_get(:foo).should == 14
+        b.local_variable_set :foo, 12
+        foo.should == 12
+      end
     end
   end
 end