5.10-stable review patch. If anyone has any objections, please let me know.
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From: Wolfram Sang wsa+renesas@sang-engineering.com
[ Upstream commit 8fc9d51ea2d32a05f7d7cf86a25cc86ecc57eb45 ]
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=V6A6G1oUZcprmkn... Signed-off-by: Wolfram Sang wsa+renesas@sang-engineering.com Link: https://lore.kernel.org/r/20220818210227.8611-1-wsa+renesas@sang-engineering... Signed-off-by: Jakub Kicinski kuba@kernel.org Stable-dep-of: a7d6027790ac ("arp: Prevent overflow in arp_req_get().") Signed-off-by: Sasha Levin sashal@kernel.org --- net/packet/af_packet.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index b292d58fdcc4c..1052cbcdd3c8d 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1871,7 +1871,7 @@ 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;
/* @@ -3540,7 +3540,7 @@ 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);