diff --git a/ChangeLog b/ChangeLog
index 181e07b166..b4765ba0f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Aug 27 07:59:17 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (iseq_set_sequence): check for multiplication overflow
+
 Tue Aug 26 22:07:42 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
 	* test/ruby/test_complex.rb: cherry-picked working assertions from r47251.
diff --git a/compile.c b/compile.c
index 1cd78c7294..52409e23f5 100644
--- a/compile.c
+++ b/compile.c
@@ -1649,7 +1649,7 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
     iseq->iseq_size = pos;
     iseq->stack_max = stack_max;
 
-    line_info_table = ruby_xrealloc(line_info_table, k * sizeof(struct iseq_line_info_entry));
+    line_info_table = REALLOC_N(line_info_table, struct iseq_line_info_entry, k);
     iseq->line_info_table = line_info_table;
     iseq->line_info_size = k;