From c90cf3d82f3288762441f2c287a21301c8be0ae7 Mon Sep 17 00:00:00 2001
From: Zhicheng Wei <zhicheng@opensourceforge.net>
Date: Sat, 19 Jan 2019 11:38:36 +0800
Subject: [PATCH] fix clusterManagerGetAntiAffinityScore double free otypes

---
 src/redis-cli.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/redis-cli.c b/src/redis-cli.c
index a74493ef..b00a4861 100644
--- a/src/redis-cli.c
+++ b/src/redis-cli.c
@@ -2471,9 +2471,10 @@ static int clusterManagerGetAntiAffinityScore(clusterManagerNodeArray *ipnodes,
             }
             // Master type 'm' is always set as the first character of the
             // types string.
+            otypes = sdsdup(otypes);
             if (!node->replicate) types = sdscatprintf(otypes, "m%s", otypes);
             else types = sdscat(otypes, "s");
-            if (types != otypes) dictReplace(related, key, types);
+            dictReplace(related, key, types);
         }
         /* Now it's trivial to check, for each related group having the
          * same host, what is their local score. */