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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2017-02-24 11:43:37 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-01 09:58:31 -0800 |
| commit | a717e3f740803cc88bd5c9a70c93504f6a368663 (patch) | |
| tree | 24825397ceebb356167c2740ef62497865a019d7 /drivers/net | |
| parent | 56de859e9967c070464a9a9f4f18d73f9447298e (diff) | |
| download | linux-a717e3f740803cc88bd5c9a70c93504f6a368663.tar.gz linux-a717e3f740803cc88bd5c9a70c93504f6a368663.tar.xz | |
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: fceb9c3e3825 ("geneve: avoid using stale geneve socket.")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/geneve.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 45301cb98bc1..7074b40ebd7f 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -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; |