diff options
author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-06-10 06:58:57 +0000 |
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committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-06-10 06:58:57 +0000 |
commit | 23bc28e2df5b9de81529bc07ccd4aebd8a5f9e3e (patch) | |
tree | 36e67dfcfb641f641b00287c00555e2adb0dcf7b /string.c | |
parent | 7a25e90ee5174d975c44ed232258ff5c41a54a18 (diff) |
merge revision(s) 55054: [Backport #12390]
* string.c (rb_str_modify_expand): check integer overflow.
[ruby-core:75592] [Bug #12390]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@55352 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -1635,6 +1635,9 @@ rb_str_modify_expand(VALUE str, long expand) long len = RSTRING_LEN(str); long capa = len + expand; int termlen = TERM_LEN(str); + if (expand >= LONG_MAX - len - termlen) { + rb_raise(rb_eArgError, "string size too big"); + } if (!STR_EMBED_P(str)) { REALLOC_N(RSTRING(str)->as.heap.ptr, char, capa + termlen); RSTRING(str)->as.heap.aux.capa = capa; |