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| author | David Howells <dhowells@redhat.com> | 2019-12-20 16:17:16 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2019-12-20 16:21:32 +0000 |
| commit | 063c60d39180cec7c9317f5acfc3071f8fecd705 (patch) | |
| tree | 771d26b217eeed8115116b8fb23a90963d6eea36 /net/rxrpc/conn_service.c | |
| parent | 13b7955a0252e15265386b229b814152f109b234 (diff) | |
| download | linux-063c60d39180cec7c9317f5acfc3071f8fecd705.tar.bz2 | |
rxrpc: Fix missing security check on incoming calls
Fix rxrpc_new_incoming_call() to check that we have a suitable service key
available for the combination of service ID and security class of a new
incoming call - and to reject calls for which we don't.
This causes an assertion like the following to appear:
rxrpc: Assertion failed - 6(0x6) == 12(0xc) is false
kernel BUG at net/rxrpc/call_object.c:456!
Where call->state is RXRPC_CALL_SERVER_SECURING (6) rather than
RXRPC_CALL_COMPLETE (12).
Fixes: 248f219cb8bc ("rxrpc: Rewrite the data and ack handling code")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/conn_service.c')
| -rw-r--r-- | net/rxrpc/conn_service.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/rxrpc/conn_service.c b/net/rxrpc/conn_service.c index 123d6ceab15c..21da48e3d2e5 100644 --- a/net/rxrpc/conn_service.c +++ b/net/rxrpc/conn_service.c @@ -148,6 +148,8 @@ struct rxrpc_connection *rxrpc_prealloc_service_connection(struct rxrpc_net *rxn */ void rxrpc_new_incoming_connection(struct rxrpc_sock *rx, struct rxrpc_connection *conn, + const struct rxrpc_security *sec, + struct key *key, struct sk_buff *skb) { struct rxrpc_skb_priv *sp = rxrpc_skb(skb); @@ -160,6 +162,8 @@ void rxrpc_new_incoming_connection(struct rxrpc_sock *rx, conn->service_id = sp->hdr.serviceId; conn->security_ix = sp->hdr.securityIndex; conn->out_clientflag = 0; + conn->security = sec; + conn->server_key = key_get(key); if (conn->security_ix) conn->state = RXRPC_CONN_SERVICE_UNSECURED; else |