From 698ebf8a61332479014451b0d56a0ee9e7f9f5fe Mon Sep 17 00:00:00 2001
From: xy420513 <chenxianyang@hust.edu.cn>
Date: Fri, 21 Apr 2023 00:47:43 +0800
Subject: [PATCH] =?UTF-8?q?Fix:=20=E5=AD=97=E7=AC=A6=E6=95=B0=E7=BB=84expe?=
 =?UTF-8?q?ct=5Fstr=E8=B6=8A=E7=95=8C?=
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第389行创建的字符数组str大小只有10，后续412行sprintf的字符串明显超出了10的大小，会发生数组越界，出现问题
---
 devices/air724/air724.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/devices/air724/air724.c b/devices/air724/air724.c
index 1bb575de..5f334dfa 100644
--- a/devices/air724/air724.c
+++ b/devices/air724/air724.c
@@ -386,7 +386,7 @@ static int air724_recv(int id, void *buf, size_t len)
 int air724_send(int id, const void *buf, size_t len)
 {
     at_echo_t echo;
-    char expect_str[10];
+    char expect_str[30];
 
     if (tos_at_global_lock_pend() != 0) {
         return -1;