From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 15 Oct 2018 15:43:50 +0000 (+0200)
Subject: dnsdist: Check 'numberOfStoredSessions' >= 0, dismiss otherwise
X-Git-Tag: dnsdist-1.3.3~41^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F7062%2Fhead;p=thirdparty%2Fpdns.git

dnsdist: Check 'numberOfStoredSessions' >= 0, dismiss otherwise
---

diff --git a/pdns/dnsdist-lua.cc b/pdns/dnsdist-lua.cc
index 960fdc2f1d..9f1db9f3ff 100644
--- a/pdns/dnsdist-lua.cc
+++ b/pdns/dnsdist-lua.cc
@@ -1543,7 +1543,13 @@ void setupLuaConfig(bool client)
           }
 
           if (vars->count("numberOfStoredSessions")) {
-            frontend->d_maxStoredSessions = boost::get<int>((*vars)["numberOfStoredSessions"]);
+            auto value = boost::get<int>((*vars)["numberOfStoredSessions"]);
+            if (value < 0) {
+              errlog("Invalid value '%d' for addTLSLocal() parameter 'numberOfStoredSessions', should be >= 0, dismissing", value);
+              g_outputBuffer="Invalid value '" +  std::to_string(value) + "' for addTLSLocal() parameter 'numberOfStoredSessions', should be >= 0, dimissing";
+              return;
+            }
+            frontend->d_maxStoredSessions = value;
           }
         }