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net/af_iucv: set correct sk_protocol for child sockets 

[ Upstream commit c5dab0941f ]

Child sockets erroneously inherit their parent's sk_type (ie. SOCK_*),
instead of the PF_IUCV protocol that the parent was created with in
iucv_sock_create().

We're currently not using sk->sk_protocol ourselves, so this shouldn't
have much impact (except eg. getting the output in skb_dump() right).

Fixes: eac3731bd0 ("[S390]: Add AF_IUCV socket support")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Link: https://lore.kernel.org/r/20201120100657.34407-1-jwi@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Julian Wiedmann 2020-11-20 11:06:57 +01:00 committed by Greg Kroah-Hartman
parent 9414855a13
commit a15beea80e
1 changed files with 2 additions and 2 deletions
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4
net/iucv/af_iucv.c
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@ -1785,7 +1785,7 @@ static int iucv_callback_connreq(struct iucv_path *path,
}
/* Create the new socket */
nsk = iucv_sock_alloc(NULL, sk->sk_type, GFP_ATOMIC, 0);
nsk = iucv_sock_alloc(NULL, sk->sk_protocol, GFP_ATOMIC, 0);
if (!nsk) {
err = pr_iucv->path_sever(path, user_data);
iucv_path_free(path);
@ -1991,7 +1991,7 @@ static int afiucv_hs_callback_syn(struct sock *sk, struct sk_buff *skb)
goto out;
}
nsk = iucv_sock_alloc(NULL, sk->sk_type, GFP_ATOMIC, 0);
nsk = iucv_sock_alloc(NULL, sk->sk_protocol, GFP_ATOMIC, 0);
bh_lock_sock(sk);
if ((sk->sk_state != IUCV_LISTEN) ||
sk_acceptq_is_full(sk) ||