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chelsio/chtls: fix panic when server is on ipv6

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Netdev is filled in egress_dev when connection is established,
If connection is closed before establishment, then egress_dev
is NULL, Fix it using ip_dev_find() rather then extracting from
egress_dev.

Fixes: 6abde0b24122 ("crypto/chtls: IPv6 support for inline TLS")
Signed-off-by: Venkatesh Ellapu <venkatesh.e@chelsio.com>
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vinay Kumar Yadav 2020-10-19 17:20:22 +05:30 committed by Jakub Kicinski
parent 81519d1f7d
commit 86cdf9ca44
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
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@ -736,14 +736,13 @@ void chtls_listen_stop(struct chtls_dev *cdev, struct sock *sk)
#if IS_ENABLED(CONFIG_IPV6)
if (sk->sk_family == PF_INET6) {
struct chtls_sock *csk;
struct net_device *ndev = chtls_find_netdev(cdev, sk);
int addr_type = 0;
csk = rcu_dereference_sk_user_data(sk);
addr_type = ipv6_addr_type((const struct in6_addr *)
&sk->sk_v6_rcv_saddr);
if (addr_type != IPV6_ADDR_ANY)
cxgb4_clip_release(csk->egress_dev, (const u32 *)
cxgb4_clip_release(ndev, (const u32 *)
&sk->sk_v6_rcv_saddr, 1);
}
#endif