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authorkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-09-14 02:44:57 +0000
committerkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-09-14 02:44:57 +0000
commitd24e1dac2b66afc3265065209686970481fb5367 (patch)
tree8275e1a083e38124cb3a7d20b76c004ec250afe5
parent4e7c8bbe034e7f96b4d2880f99cf1bc75d4c6097 (diff)
downloadruby-d24e1dac2b66afc3265065209686970481fb5367.tar.gz
* thread.c (rb_fd_rcopy): added an argument guard.
Patch by NAKAMURA Usaku. [Bug #5306] [ruby-core:39435] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33266 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--ChangeLog5
-rw-r--r--thread.c4
2 files changed, 8 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 9b94bd7894..034c05ea1d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Sep 14 11:43:37 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
+
+ * thread.c (rb_fd_rcopy): added an argument guard.
+ Patch by NAKAMURA Usaku. [Bug #5306] [ruby-core:39435]
+
Tue Sep 13 20:21:49 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* lib/pstore.rb, test/test_pstore.rb: suppress warnings with -v.
diff --git a/thread.c b/thread.c
index 4f8a907764..10b73eb3e4 100644
--- a/thread.c
+++ b/thread.c
@@ -2469,7 +2469,9 @@ rb_fd_rcopy(fd_set *dst, rb_fdset_t *src)
{
int max = rb_fd_max(src);
- if (max > FD_SETSIZE) {
+ /* we assume src is the result of select() with dst, so dst should be
+ * larger or equal than src. */
+ if (max > FD_SETSIZE || max > dst->fd_count) {
rb_raise(rb_eArgError, "too large fdsets");
}