public inbox for netdev@vger.kernel.org
 help / color / mirror / Atom feed
From: Hongbo Li <lihongbo22@huawei.com>
To: <davem@davemloft.net>, <edumazet@google.com>, <kuba@kernel.org>,
	<pabeni@redhat.com>, <dsahern@kernel.org>, <ralf@linux-mips.org>,
	<jmaloy@redhat.com>, <ying.xue@windriver.com>
Cc: <netdev@vger.kernel.org>, <linux-hams@vger.kernel.org>,
	<netfilter-devel@vger.kernel.org>
Subject: [PATCH net-next 5/6] net/tipc: replace deprecated strcpy with strscpy
Date: Tue, 27 Aug 2024 19:35:26 +0800	[thread overview]
Message-ID: <20240827113527.4019856-6-lihongbo22@huawei.com> (raw)
In-Reply-To: <20240827113527.4019856-1-lihongbo22@huawei.com>

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@huawei.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


  parent reply	other threads:[~2024-08-27 11:27 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-27 11:35 [PATCH net-next 0/6] replace deprecated strcpy with strscpy Hongbo Li
2024-08-27 11:35 ` [PATCH net-next 1/6] net: prefer strscpy over strcpy Hongbo Li
2024-08-27 12:30   ` Dan Carpenter
2024-08-28  7:43     ` Hongbo Li
2024-08-28  8:54       ` Dan Carpenter
2024-08-27 11:35 ` [PATCH net-next 2/6] net/ipv6: replace deprecated strcpy with strscpy Hongbo Li
2024-08-27 11:35 ` [PATCH net-next 3/6] net/netrom: prefer strscpy over strcpy Hongbo Li
2024-08-27 11:35 ` [PATCH net-next 4/6] net/netfilter: replace deprecated strcpy with strscpy Hongbo Li
2024-08-27 11:35 ` Hongbo Li [this message]
2024-08-27 11:35 ` [PATCH net-next 6/6] net/ipv4: net: prefer strscpy over strcpy Hongbo Li

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240827113527.4019856-6-lihongbo22@huawei.com \
    --to=lihongbo22@huawei.com \
    --cc=davem@davemloft.net \
    --cc=dsahern@kernel.org \
    --cc=edumazet@google.com \
    --cc=jmaloy@redhat.com \
    --cc=kuba@kernel.org \
    --cc=linux-hams@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=netfilter-devel@vger.kernel.org \
    --cc=pabeni@redhat.com \
    --cc=ralf@linux-mips.org \
    --cc=ying.xue@windriver.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox