From: khizmax <libcds.dev@gmail.com>
Date: Sat, 6 Aug 2016 07:09:24 +0000 (+0300)
Subject: Fixed rare heap-use-after-free bug
X-Git-Tag: v2.2.0~146
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ad0bad280c5d7cf82bbd10eb7e5b006cbefdb6de;p=libcds.git

Fixed rare heap-use-after-free bug
---

diff --git a/cds/intrusive/impl/feldman_hashset.h b/cds/intrusive/impl/feldman_hashset.h
index bd731d7f..33828773 100644
--- a/cds/intrusive/impl/feldman_hashset.h
+++ b/cds/intrusive/impl/feldman_hashset.h
@@ -630,8 +630,7 @@ namespace cds { namespace intrusive {
                     // slot value has been changed - retry
                     stats().onSlotChanged();
                 }
-
-                if ( slot.ptr()) {
+                else if ( slot.ptr()) {
                     if ( cmp( hash, hash_accessor()( *slot.ptr())) == 0 ) {
                         // the item with that hash value already exists
                         stats().onInsertFailed();