From 512b2dc48e8b01ffb6ef68c0c7ba69b5d91cab46 Mon Sep 17 00:00:00 2001 From: XueBing Chen Date: Mon, 11 Jul 2022 21:55:37 +0800 Subject: [PATCH] net: ip_tunnel: use strscpy to replace strlcpy The strlcpy should not be used because it doesn't limit the source length. Preferred is strscpy. Signed-off-by: XueBing Chen Link: https://lore.kernel.org/r/2a08f6c1.e30.181ed8b49ad.Coremail.chenxuebing@jari.cn Signed-off-by: Jakub Kicinski --- net/ipv4/ip_tunnel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 94017a8c39945..4688f00a454ce 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -242,7 +242,7 @@ static struct net_device *__ip_tunnel_create(struct net *net, if (parms->name[0]) { if (!dev_valid_name(parms->name)) goto failed; - strlcpy(name, parms->name, IFNAMSIZ); + strscpy(name, parms->name, IFNAMSIZ); } else { if (strlen(ops->kind) > (IFNAMSIZ - 3)) goto failed; @@ -1065,7 +1065,7 @@ int ip_tunnel_init_net(struct net *net, unsigned int ip_tnl_net_id, memset(&parms, 0, sizeof(parms)); if (devname) - strlcpy(parms.name, devname, IFNAMSIZ); + strscpy(parms.name, devname, IFNAMSIZ); rtnl_lock(); itn->fb_tunnel_dev = __ip_tunnel_create(net, ops, &parms);