From 38380aff07a8e73dafbb34aa74066036ffe37508 Mon Sep 17 00:00:00 2001
From: Elvin Sindrilaru <esindril@cern.ch>
Date: Fri, 1 Apr 2022 11:00:11 +0200
Subject: [PATCH] [XrdSciTokens] Fix memory corruption

---
 src/XrdSciTokens/XrdSciTokensAccess.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/XrdSciTokens/XrdSciTokensAccess.cc b/src/XrdSciTokens/XrdSciTokensAccess.cc
index 67bf9e76a36..45ea4b1f980 100644
--- a/src/XrdSciTokens/XrdSciTokensAccess.cc
+++ b/src/XrdSciTokens/XrdSciTokensAccess.cc
@@ -387,7 +387,7 @@ class XrdAccSciTokens : public XrdAccAuthorize, public XrdSciTokensHelper
                 ss << grp << " ";
             }
             const auto &groups_str = ss.str();
-            new_secentity.grps = static_cast<char*>(malloc(groups_str.size()));
+            new_secentity.grps = static_cast<char*>(malloc(groups_str.size() + 1));
             if (new_secentity.grps) {
                 memcpy(new_secentity.grps, groups_str.c_str(), groups_str.size());
                 new_secentity.grps[groups_str.size()] = '\0';