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authorAkira Kuroda <[email protected]>2012-07-25 00:05:51 +0900
committerAkira Kuroda <[email protected]>2012-07-25 00:05:51 +0900
commitf114e3e25236cd43d2f71419e4929caaa755020e (patch)
treeca485c7856fa40eb68e40e8a7c377bbbf1c56fa4 /src
parentc98134905fe0db2fb83c930a1b009e3198f76ac0 (diff)
downloadmruby-f114e3e25236cd43d2f71419e4929caaa755020e.tar.gz
mruby-f114e3e25236cd43d2f71419e4929caaa755020e.zip
fix segmentation fault in Array#last
Diffstat (limited to 'src')
-rw-r--r--src/array.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/array.c b/src/array.c
index ed1c3f475..0f52c38ef 100644
--- a/src/array.c
+++ b/src/array.c
@@ -789,6 +789,9 @@ mrb_ary_last(mrb_state *mrb, mrb_value self)
/* len == 1 */
size = mrb_fixnum(*vals);
+ if (size < 0) {
+ mrb_raise(mrb, E_ARGUMENT_ERROR, "negative array size");
+ }
if (size > a->len) size = a->len;
if ((a->flags & MRB_ARY_SHARED) || size > ARY_DEFAULT_LEN) {
return ary_subseq(mrb, a, a->len - size, size);