From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/drivers/net/usb/rndis_host.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/drivers/net/usb/rndis_host.c b/kernel/drivers/net/usb/rndis_host.c
index 1505fe3..1ff723e 100644
--- a/kernel/drivers/net/usb/rndis_host.c
+++ b/kernel/drivers/net/usb/rndis_host.c
@@ -255,7 +255,8 @@
 
 	off = le32_to_cpu(u.get_c->offset);
 	len = le32_to_cpu(u.get_c->len);
-	if (unlikely((8 + off + len) > CONTROL_BUFFER_SIZE))
+	if (unlikely((off > CONTROL_BUFFER_SIZE - 8) ||
+		     (len > CONTROL_BUFFER_SIZE - 8 - off)))
 		goto response_error;
 
 	if (*reply_len != -1 && len != *reply_len)

--
Gitblit v1.6.2