diff --git a/changes-entries/lua-parsebody-off-t.txt b/changes-entries/lua-parsebody-off-t.txt
new file mode 100644
index 00000000000..26dd03e6457
--- /dev/null
+++ b/changes-entries/lua-parsebody-off-t.txt
@@ -0,0 +1,4 @@
+  *) mod_lua: Fix a stack write past a 4-byte object in r:parsebody() where
+     the body length was read through an apr_off_t* aliased onto an apr_size_t,
+     corrupting adjacent stack on builds with sizeof(apr_off_t) > sizeof(apr_size_t)
+     (32-bit large-file). [arshiya tabasum]
diff --git a/modules/lua/lua_request.c b/modules/lua/lua_request.c
index 587b690c6fa..6843679006b 100644
--- a/modules/lua/lua_request.c
+++ b/modules/lua/lua_request.c
@@ -399,9 +399,11 @@ static int req_parsebody(lua_State *L)
         int         i;
         size_t      vlen = 0;
         size_t      len = 0;
-        if (lua_read_body(r, &data, (apr_off_t*) &size, max_post_size) != OK) {
+        apr_off_t   body_len = 0;
+        if (lua_read_body(r, &data, &body_len, max_post_size) != OK) {
             return 2;
         }
+        size = (apr_size_t) body_len;
         len = strlen(multipart);
         i = 0;
         for