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Commit a717e3f7 authored by Jakub Kicinski's avatar Jakub Kicinski Committed by David S. Miller
Browse files

geneve: lock RCU on TX path 



There is no guarantees that callers of the TX path will hold
the RCU lock.  Grab it explicitly.

Fixes: fceb9c3e ("geneve: avoid using stale geneve socket.")
Signed-off-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 56de859e

drivers/net/geneve.c

+2 −0
Original line number Diff line number Diff line
@@ -881,12 +881,14 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev) 
		info = &geneve->info;

	}



	rcu_read_lock();

#if IS_ENABLED(CONFIG_IPV6)

	if (info->mode & IP_TUNNEL_INFO_IPV6)

		err = geneve6_xmit_skb(skb, dev, geneve, info);

	else

#endif

		err = geneve_xmit_skb(skb, dev, geneve, info);

	rcu_read_unlock();



	if (likely(!err))

		return NETDEV_TX_OK;