From fc16173bb526932b2cd15d4d2a56442d2e39ffd3 Mon Sep 17 00:00:00 2001
From: Xiao Chuanjiao <xiaocj@montplex.com>
Date: Wed, 7 May 2025 20:47:28 +0800
Subject: [PATCH] fix(valgrind error): access memory address after it's free'd

---
 src/scan_algorithm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/scan_algorithm.c b/src/scan_algorithm.c
index 5892dab..906e916 100644
--- a/src/scan_algorithm.c
+++ b/src/scan_algorithm.c
@@ -240,6 +240,7 @@ void passiveExpire(RedisModuleCtx *ctx, int dbid, RedisModuleString *key) {
         ln = tair_hash_obj->expire_index->header->level[0].forward;
         while (ln && keys_per_loop) {
             field = ln->member;
+            ln = ln->level[0].forward;
             if (fieldExpireIfNeeded(ctx, dbid, key, tair_hash_obj, field, 0)) {
                 g_expire_algorithm.stat_passive_expired_field[dbid]++;
                 start_index++;
@@ -250,7 +251,6 @@ void passiveExpire(RedisModuleCtx *ctx, int dbid, RedisModuleString *key) {
             } else {
                 break;
             }
-            ln = ln->level[0].forward;
         }
 
         if (may_delkey) {