* vm_insnhelper.c (vm_method_missing): copy arguments to allocated

  memory from machine stack.  [ruby-dev:36064]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19072 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 8 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 8eeb8ffbf4..a77d23b32c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Sep  3 00:23:25 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* vm_insnhelper.c (vm_method_missing): copy arguments to allocated
+	  memory from machine stack.  [ruby-dev:36064]
+
 Tue Sep  2 22:20:26 2008  Tanaka Akira  <akr@fsij.org>
 
 	* transcode_data.h (base_element): removed.
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index abf74d7491..cfac3a4dce 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -410,13 +410,14 @@ vm_method_missing(rb_thread_t *th, ID id, VALUE recv,
 		  int num, rb_block_t *blockptr, int opt)
 {
     rb_control_frame_t * const reg_cfp = th->cfp;
-    VALUE *argv = STACK_ADDR_FROM_TOP(num + 1);
+    VALUE *argv = ALLOCA_N(VALUE, num + 1);
+    MEMCPY(argv, STACK_ADDR_FROM_TOP(num + 1), VALUE, num + 1);
     VALUE val;
     argv[0] = ID2SYM(id);
     th->method_missing_reason = opt;
     th->passed_block = blockptr;
-    val = rb_funcall2(recv, idMethodMissing, num + 1, argv);
     POPN(num + 1);
+    val = rb_funcall2(recv, idMethodMissing, num + 1, argv);
     return val;
 }