linux-kernel - [PATCH net 2/9] rxrpc: Fix security setting propagation

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Message-ID: <167112119625.152641.17989220946528839395.stgit@warthog.procyon.org.uk>
Date:   Thu, 15 Dec 2022 16:19:56 +0000
From:   David Howells <dhowells@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Marc Dionne <marc.dionne@...istor.com>,
        linux-afs@...ts.infradead.org, dhowells@...hat.com,
        linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net 2/9] rxrpc: Fix security setting propagation

Fix the propagation of the security settings from sendmsg to the rxrpc_call
struct.

Fixes: f3441d4125fc ("rxrpc: Copy client call parameters into rxrpc_call earlier")
Signed-off-by: David Howells <dhowells@...hat.com>
cc: Marc Dionne <marc.dionne@...istor.com>
cc: linux-afs@...ts.infradead.org
---

 net/rxrpc/call_object.c |    1 +
 net/rxrpc/conn_client.c |    2 --
 net/rxrpc/security.c    |    6 +++---
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index be5eb8cdf549..89dcf60b1158 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -217,6 +217,7 @@ static struct rxrpc_call *rxrpc_alloc_client_call(struct rxrpc_sock *rx,
 	call->tx_total_len	= p->tx_total_len;
 	call->key		= key_get(cp->key);
 	call->local		= rxrpc_get_local(cp->local, rxrpc_local_get_call);
+	call->security_level	= cp->security_level;
 	if (p->kernel)
 		__set_bit(RXRPC_CALL_KERNEL, &call->flags);
 	if (cp->upgrade)
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index a08e33c9e54b..87efa0373aed 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -551,8 +551,6 @@ static void rxrpc_activate_one_channel(struct rxrpc_connection *conn,
 	call->conn	= rxrpc_get_connection(conn, rxrpc_conn_get_activate_call);
 	call->cid	= conn->proto.cid | channel;
 	call->call_id	= call_id;
-	call->security	= conn->security;
-	call->security_ix = conn->security_ix;
 	call->dest_srx.srx_service = conn->service_id;
 
 	trace_rxrpc_connect_call(call);
diff --git a/net/rxrpc/security.c b/net/rxrpc/security.c
index 209f2c25a0da..ab968f65a490 100644
--- a/net/rxrpc/security.c
+++ b/net/rxrpc/security.c
@@ -67,13 +67,13 @@ const struct rxrpc_security *rxrpc_security_lookup(u8 security_index)
  */
 int rxrpc_init_client_call_security(struct rxrpc_call *call)
 {
-	const struct rxrpc_security *sec;
+	const struct rxrpc_security *sec = &rxrpc_no_security;
 	struct rxrpc_key_token *token;
 	struct key *key = call->key;
 	int ret;
 
 	if (!key)
-		return 0;
+		goto found;
 
 	ret = key_validate(key);
 	if (ret < 0)
@@ -88,7 +88,7 @@ int rxrpc_init_client_call_security(struct rxrpc_call *call)
 
 found:
 	call->security = sec;
-	_leave(" = 0");
+	call->security_ix = sec->security_index;
 	return 0;
 }