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Groups > linux.kernel > #1376890

[PATCH 2/3] rxrpc: The RXRPC_ACCEPT control message should not have an address

From David Howells <dhowells@redhat.com>
Newsgroups linux.kernel
Subject [PATCH 2/3] rxrpc: The RXRPC_ACCEPT control message should not have an address
Date 2016-04-12 17:10 +0200
Message-ID <rn871-W0-35@gated-at.bofh.it> (permalink)
References <rn870-W0-15@gated-at.bofh.it>
Organization Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903

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When sendmsg() is called with the RXRPC_ACCEPT control message, sendmsg()
shouldn't also be given an address in msg_name.

Signed-off-by: David Howells <dhowells@redhat.com>
---

 net/rxrpc/ar-output.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c
index b87fda075b45..044de9bf34a4 100644
--- a/net/rxrpc/ar-output.c
+++ b/net/rxrpc/ar-output.c
@@ -199,7 +199,8 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
 		return ret;
 
 	if (cmd == RXRPC_CMD_ACCEPT) {
-		if (rx->sk.sk_state != RXRPC_SERVER_LISTENING)
+		if (rx->sk.sk_state != RXRPC_SERVER_LISTENING ||
+		    msg->msg_name)
 			return -EINVAL;
 		call = rxrpc_accept_call(rx, user_call_ID);
 		if (IS_ERR(call))

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Thread

[PATCH 0/3] RxRPC: 2nd rewrite part 2 David Howells <dhowells@redhat.com> - 2016-04-12 17:10 +0200
  [PATCH 2/3] rxrpc: The RXRPC_ACCEPT control message should not have  an address David Howells <dhowells@redhat.com> - 2016-04-12 17:10 +0200
  [PATCH 1/3] rxrpc: Don't permit use of connect() op and simplify  sendmsg() op David Howells <dhowells@redhat.com> - 2016-04-12 17:10 +0200
    Re: [PATCH 1/3] rxrpc: Don't permit use of connect() op and  simplify sendmsg() op David Miller <davem@davemloft.net> - 2016-04-15 03:10 +0200
      Re: [PATCH 1/3] rxrpc: Don't permit use of connect() op and simplify sendmsg() op David Howells <dhowells@redhat.com> - 2016-04-15 05:30 +0200

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