[PATCH] ipv6: replace sprintf() with no format specifiers with strscpy()
From: Lalit Shankar Chowdhury
Date: Wed Sep 09 2026 - 17:26:40 EST
Multiple instances of sprintf() have no format specifiers. Replace
them with strscpy().
Signed-off-by: Lalit Shankar Chowdhury <lalitshankarch@xxxxxxxxx>
---
net/ipv6/ip6_tunnel.c | 2 +-
net/ipv6/ip6_vti.c | 2 +-
net/ipv6/ip6mr.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index d5ff50a2ac01..ef3a6d931c9e 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -294,7 +294,7 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
goto failed;
strscpy(name, p->name, IFNAMSIZ);
} else {
- sprintf(name, "ip6tnl%%d");
+ strscpy(name, "ip6tnl%d", IFNAMSIZ);
}
err = -ENOMEM;
dev = alloc_netdev(sizeof(*t), name, NET_NAME_UNKNOWN,
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index ab94b3a4ba9c..182a7949d830 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -210,7 +210,7 @@ static struct ip6_tnl *vti6_tnl_create(struct net *net, struct __ip6_tnl_parm *p
goto failed;
strscpy(name, p->name, IFNAMSIZ);
} else {
- sprintf(name, "ip6_vti%%d");
+ strscpy(name, "ip6_vti%d", IFNAMSIZ);
}
dev = alloc_netdev(sizeof(*t), name, NET_NAME_UNKNOWN, vti6_dev_setup);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 3f2ed9b77deb..20ac8cb87468 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -692,7 +692,7 @@ static struct net_device *ip6mr_reg_vif(struct net *net, struct mr_table *mrt)
char name[IFNAMSIZ];
if (mrt->id == RT6_TABLE_DFLT)
- sprintf(name, "pim6reg");
+ strscpy(name, "pim6reg", IFNAMSIZ);
else
sprintf(name, "pim6reg%u", mrt->id);
--
2.53.0