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packet: move from strlcpy with unused retval to strscpy

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[ Upstream commit 8fc9d51ea2 ]

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220818210227.8611-1-wsa+renesas@sang-engineering.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: a7d6027790 ("arp: Prevent overflow in arp_req_get().")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wolfram Sang 2022-08-18 23:02:27 +02:00 committed by Greg Kroah-Hartman
parent 953f429345
commit a2b855119e
1 changed files with 2 additions and 2 deletions
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4
net/packet/af_packet.c
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@ -1850,7 +1850,7 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev,
*/
spkt->spkt_family = dev->type;
strlcpy(spkt->spkt_device, dev->name, sizeof(spkt->spkt_device));
strscpy(spkt->spkt_device, dev->name, sizeof(spkt->spkt_device));
spkt->spkt_protocol = skb->protocol;
/*
@ -3501,7 +3501,7 @@ static int packet_getname_spkt(struct socket *sock, struct sockaddr *uaddr,
rcu_read_lock();
dev = dev_get_by_index_rcu(sock_net(sk), READ_ONCE(pkt_sk(sk)->ifindex));
if (dev)
strlcpy(uaddr->sa_data, dev->name, sizeof(uaddr->sa_data));
strscpy(uaddr->sa_data, dev->name, sizeof(uaddr->sa_data));
rcu_read_unlock();
return sizeof(*uaddr);