* array.c (rb_ary_fill): need integer overflow check.

  [ruby-dev:31738]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@13344 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/array.c b/array.c
index 0ead0812fb..bb793278a2 100644
--- a/array.c
+++ b/array.c
@@ -2264,6 +2264,9 @@ rb_ary_fill(argc, argv, ary)
     }
     rb_ary_modify(ary);
     end = beg + len;
+    if (end < 0) {
+	rb_raise(rb_eArgError, "argument too big");
+    }
     if (end > RARRAY(ary)->len) {
 	if (end >= RARRAY(ary)->aux.capa) {
 	    REALLOC_N(RARRAY(ary)->ptr, VALUE, end);