Commit 400f1f4f authored by Stephen Smalley's avatar Stephen Smalley Committed by Luis Henriques

net/tipc: initialize security state for new connection socket

commit fdd75ea8 upstream.

Calling connect() with an AF_TIPC socket would trigger a series
of error messages from SELinux along the lines of:
SELinux: Invalid class 0
type=AVC msg=audit(1434126658.487:34500): avc:  denied  { <unprintable> }
  for pid=292 comm="kworker/u16:5" scontext=system_u:system_r:kernel_t:s0
  tcontext=system_u:object_r:unlabeled_t:s0 tclass=<unprintable>
  permissive=0

This was due to a failure to initialize the security state of the new
connection sock by the tipc code, leaving it with junk in the security
class field and an unlabeled secid.  Add a call to security_sk_clone()
to inherit the security state from the parent socket.
Reported-by: default avatarTim Shearer <tim.shearer@overturenetworks.com>
Signed-off-by: default avatarStephen Smalley <sds@tycho.nsa.gov>
Acked-by: default avatarPaul Moore <paul@paul-moore.com>
Acked-by: default avatarYing Xue <ying.xue@windriver.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent 39347e75
...@@ -1696,6 +1696,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) ...@@ -1696,6 +1696,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags)
res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, 1); res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, 1);
if (res) if (res)
goto exit; goto exit;
security_sk_clone(sock->sk, new_sock->sk);
new_sk = new_sock->sk; new_sk = new_sock->sk;
new_port = &tipc_sk(new_sk)->port; new_port = &tipc_sk(new_sk)->port;
......
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