Commit db39dfdc authored by Peilin Ye's avatar Peilin Ye Committed by Jakub Kicinski
Browse files

udp: Use WARN_ON_ONCE() in udp_read_skb() 



Prevent udp_read_skb() from flooding the syslog.

Suggested-by: default avatarJakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: default avatarPeilin Ye <peilin.ye@bytedance.com>
Link: https://lore.kernel.org/r/20220921005915.2697-1-yepeilin.cs@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent c5da4b68

net/ipv4/udp.c

+1 −1
Original line number Diff line number Diff line
@@ -1821,7 +1821,7 @@ int udp_read_skb(struct sock *sk, skb_read_actor_t recv_actor) 
			continue;

		}



		WARN_ON(!skb_set_owner_sk_safe(skb, sk));

		WARN_ON_ONCE(!skb_set_owner_sk_safe(skb, sk));

		used = recv_actor(sk, skb);

		if (used <= 0) {

			if (!copied)