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/net/sched/ematch.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/net/sched/ematch.c b/kernel/net/sched/ematch.c
index f885bea..b715410 100644
--- a/kernel/net/sched/ematch.c
+++ b/kernel/net/sched/ematch.c
@@ -255,6 +255,8 @@
 			 * the value carried.
 			 */
 			if (em_hdr->flags & TCF_EM_SIMPLE) {
+				if (em->ops->datalen > 0)
+					goto errout;
 				if (data_len < sizeof(u32))
 					goto errout;
 				em->data = *(u32 *) data;

--
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