| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.8 034/633] chelsio/chtls: fix panic when server is on ipv6 | Date | Tue, 27 Oct 2020 14:46:17 +0100 |
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From: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
[ Upstream commit 86cdf9ca4409d997a391103e480b3f77b7ccc19b ]
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/crypto/chelsio/chtls/chtls_cm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/crypto/chelsio/chtls/chtls_cm.c +++ b/drivers/crypto/chelsio/chtls/chtls_cm.c @@ -736,14 +736,13 @@ void chtls_listen_stop(struct chtls_dev #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
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