[frame.c] use-after-free fix

Oops, didn't recognise ud == sr_data, so didn't see the use-after-free.
MoarVM · Jun 6, 2018 · c58dadb · c58dadb
1 parent 5835aa7
commit c58dadb
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/core/frame.c b/src/core/frame.c
@@ -1018,8 +1018,9 @@ static void continue_unwind(MVMThreadContext *tc, void *sr_data) {
     MVMFrame *frame    = ud->frame;
     MVMuint8 *abs_addr = ud->abs_addr;
     MVMuint32 rel_addr = ud->rel_addr;
+    void *jit_return_label = ud->jit_return_label;
     MVM_free(sr_data);
-    MVM_frame_unwind_to(tc, frame, abs_addr, rel_addr, NULL, ud->jit_return_label);
+    MVM_frame_unwind_to(tc, frame, abs_addr, rel_addr, NULL, jit_return_label);
 }
 void MVM_frame_unwind_to(MVMThreadContext *tc, MVMFrame *frame, MVMuint8 *abs_addr,
                          MVMuint32 rel_addr, MVMObject *return_value, void *jit_return_label) {