diff -Naru redis-5.0.14/deps/lua/src/ldebug.c redis-5.0.14-new/deps/lua/src/ldebug.c
--- redis-5.0.14/deps/lua/src/ldebug.c	2021-10-04 18:58:43.000000000 +0800
+++ redis-5.0.14-new/deps/lua/src/ldebug.c	2022-05-16 11:01:09.877613000 +0800
@@ -80,7 +80,6 @@
   return L->basehookcount;
 }
 
-
 LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar) {
   int status;
   CallInfo *ci;
diff -Naru redis-5.0.14/deps/lua/src/lobject.h redis-5.0.14-new/deps/lua/src/lobject.h
--- redis-5.0.14/deps/lua/src/lobject.h	2021-10-04 18:58:43.000000000 +0800
+++ redis-5.0.14-new/deps/lua/src/lobject.h	2022-05-16 11:03:06.374928000 +0800
@@ -337,7 +337,8 @@
 
 typedef struct Table {
   CommonHeader;
-  lu_byte flags;  /* 1<<p means tagmethod(p) is not present */ 
+  lu_byte flags;  /* 1<<p means tagmethod(p) is not present */
+  int readonly; 
   lu_byte lsizenode;  /* log2 of size of `node' array */
   struct Table *metatable;
   TValue *array;  /* array part */
diff -Naru redis-5.0.14/deps/lua/src/ltable.c redis-5.0.14-new/deps/lua/src/ltable.c
--- redis-5.0.14/deps/lua/src/ltable.c	2021-10-04 18:58:43.000000000 +0800
+++ redis-5.0.14-new/deps/lua/src/ltable.c	2022-05-16 14:40:02.759382000 +0800
@@ -364,6 +364,7 @@
   t->array = NULL;
   t->sizearray = 0;
   t->lsizenode = 0;
+  t->readonly = 0;
   t->node = cast(Node *, dummynode);
   setarrayvector(L, t, narray);
   setnodevector(L, t, nhash);
diff -Naru redis-5.0.14/deps/lua/src/lua.h redis-5.0.14-new/deps/lua/src/lua.h
--- redis-5.0.14/deps/lua/src/lua.h	2021-10-04 18:58:43.000000000 +0800
+++ redis-5.0.14-new/deps/lua/src/lua.h	2022-05-16 11:06:52.052521000 +0800
@@ -358,6 +358,9 @@
   int i_ci;  /* active function */
 };
 
+  LUA_API void lua_enablereadonlytable (lua_State *L, int index, int enabled);
+  LUA_API int lua_isreadonlytable (lua_State *L, int index);
+
 /* }====================================================================== */
 
 
diff -Naru redis-5.0.14/deps/lua/src/lvm.c redis-5.0.14-new/deps/lua/src/lvm.c
--- redis-5.0.14/deps/lua/src/lvm.c	2021-10-04 18:58:43.000000000 +0800
+++ redis-5.0.14-new/deps/lua/src/lvm.c	2022-05-16 11:14:26.356619000 +0800
@@ -138,6 +138,8 @@
     const TValue *tm;
     if (ttistable(t)) {  /* `t' is a table? */
       Table *h = hvalue(t);
+      if (h->readonly)
+        luaG_runerror(L, "Attempt to modify a readonly table");
       TValue *oldval = luaH_set(L, h, key); /* do a primitive set */
       if (!ttisnil(oldval) ||  /* result is no nil? */
           (tm = fasttm(L, h->metatable, TM_NEWINDEX)) == NULL) { /* or no TM? */