[PATCH 4.19 26/32] chelsio/chtls: fix panic during unload reload chtls

[Greg Kroah-Hartman]

From: Vinay Kumar Yadav <vinay.ya...@chelsio.com>

[ Upstream commit e3d5e971d2f83d8ddd4b91a50cea4517fb488383 ]

there is kernel panic in inet_twsk_free() while chtls
module unload when socket is in TIME_WAIT state because
sk_prot_creator was not preserved on connection socket.

Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition")
Signed-off-by: Udai Sharma <udai.sha...@chelsio.com>
Signed-off-by: Vinay Kumar Yadav <vinay.ya...@chelsio.com>
Link: https://lore.kernel.org/r/20201125214913.16938-1-vinay.ya...@chelsio.com
Signed-off-by: Jakub Kicinski <k...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/crypto/chelsio/chtls/chtls_cm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/crypto/chelsio/chtls/chtls_cm.c
+++ b/drivers/crypto/chelsio/chtls/chtls_cm.c
@@ -1079,6 +1079,7 @@ static struct sock *chtls_recv_sock(stru
 
        oreq->ts_recent = PASS_OPEN_TID_G(ntohl(req->tos_stid));
        sk_setup_caps(newsk, dst);
+       newsk->sk_prot_creator = lsk->sk_prot_creator;
        csk->sk = newsk;
        csk->passive_reap_next = oreq;
        csk->tx_chan = cxgb4_port_chan(ndev);