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.

(cherry picked from commit 65c24bd3d436a08a680fa80bf5b3f4f9cf8ef395)

1 files changed, 2 insertions, 0 deletions

diff --git a/src/module.c b/src/module.c
index 4016402ac..5515cfcad 100644
--- a/src/module.c
+++ b/src/module.c
@@ -543,6 +543,8 @@ 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);
     }
 }