netdev - [PATCH net-next 5/6] net/tipc: replace deprecated strcpy with strscpy

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Message-ID: <20240827113527.4019856-6-lihongbo22@huawei.com>
Date: Tue, 27 Aug 2024 19:35:26 +0800
From: Hongbo Li <lihongbo22@...wei.com>
To: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <dsahern@...nel.org>, <ralf@...ux-mips.org>,
	<jmaloy@...hat.com>, <ying.xue@...driver.com>
CC: <netdev@...r.kernel.org>, <linux-hams@...r.kernel.org>,
	<netfilter-devel@...r.kernel.org>
Subject: [PATCH net-next 5/6] net/tipc: replace deprecated strcpy with strscpy

The deprecated helper strcpy() performs no bounds checking on the
destination buffer. This could result in linear overflows beyond
the end of the buffer, leading to all kinds of misbehaviors.
The safe replacement is strscpy() [1].

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1]

Signed-off-by: Hongbo Li <lihongbo22@...wei.com>
---
 net/tipc/bearer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 3c9e25f6a1d2..125a92e6aa3c 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -326,7 +326,7 @@ static int tipc_enable_bearer(struct net *net, const char *name,
 	if (!b)
 		return -ENOMEM;
 
-	strcpy(b->name, name);
+	strscpy(b->name, name, sizeof(b->name));
 	b->media = m;
 	res = m->enable_media(net, b, attr);
 	if (res) {
-- 
2.34.1