Commit cd0f6421 authored by YueHaibing's avatar YueHaibing Committed by Jakub Kicinski
Browse files

tipc: check skb_linearize() return value in tipc_disc_rcv() 



If skb_linearize() fails in tipc_disc_rcv(), we need to free the skb instead of
handle it.

Fixes: 25b0b9c4 ("tipc: handle collisions of 32-bit node address hash values")
Signed-off-by: default avatarYueHaibing <yuehaibing@huawei.com>
Acked-by: default avatarJon Maloy <jmaloy@redhat.com>
Link: https://lore.kernel.org/r/20221119072832.7896-1-yuehaibing@huawei.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 5916380c

net/tipc/discover.c

+4 −1
Original line number Diff line number Diff line
@@ -211,7 +211,10 @@ void tipc_disc_rcv(struct net *net, struct sk_buff *skb, 
	u32 self;

	int err;



	skb_linearize(skb);

	if (skb_linearize(skb)) {

		kfree_skb(skb);

		return;

	}

	hdr = buf_msg(skb);



	if (caps & TIPC_NODE_ID128)