From 65c24bd3d436a08a680fa80bf5b3f4f9cf8ef395 Mon Sep 17 00:00:00 2001
From: guybe7 <guy.benoish@redislabs.com>
Date: Thu, 20 Aug 2020 18:55:14 +0200
Subject: [PATCH] Modules: Invalidate saved_oparray after use (#7688)

We wanna avoid a chance of someone using the pointer in it after it'll be freed / realloced.
---
 src/module.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/module.c b/src/module.c
index 2c90c599a..d29b2e3f1 100644
--- a/src/module.c
+++ b/src/module.c
@@ -609,6 +609,8 @@ void moduleHandlePropagationAfterCommandCallback(RedisModuleCtx *ctx) {
         redisOpArrayFree(&server.also_propagate);
         /* Restore the previous oparray in case of nexted use of the API. */
         server.also_propagate = ctx->saved_oparray;
+        /* We're done with saved_oparray, let's invalidate it. */
+        redisOpArrayInit(&ctx->saved_oparray);
     }
 }