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Revert "selinux: fix the default socket labeling in sock_graft()" 

This reverts commit 4da6daf4d3.

Unfortunately, the commit in question caused problems with Bluetooth
devices, specifically it caused them to get caught in the newly
created BUG_ON() check.  The AF_ALG problem still exists, but will be
addressed in a future patch.

Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
This commit is contained in:
Paul Moore 2014-07-28 10:42:48 -04:00
parent 4da6daf4d3
commit 2873ead7e4
2 changed files with 3 additions and 15 deletions
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5
include/linux/security.h
View File

@ -987,10 +987,7 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
* Retrieve the LSM-specific secid for the sock to enable caching of network
* authorizations.
* @sock_graft:
* This hook is called in response to a newly created sock struct being
* grafted onto an existing socket and allows the security module to
* perform whatever security attribute management is necessary for both
* the sock and socket.
* Sets the socket's isec sid to the sock's sid.
* @inet_conn_request:
* Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
* @inet_csk_clone:

13
security/selinux/hooks.c
View File

@ -4499,18 +4499,9 @@ static void selinux_sock_graft(struct sock *sk, struct socket *parent)
struct inode_security_struct *isec = SOCK_INODE(parent)->i_security;
struct sk_security_struct *sksec = sk->sk_security;
switch (sk->sk_family) {
case PF_INET:
case PF_INET6:
case PF_UNIX:
if (sk->sk_family == PF_INET || sk->sk_family == PF_INET6 ||
sk->sk_family == PF_UNIX)
isec->sid = sksec->sid;
break;
default:
/* by default there is no special labeling mechanism for the
* sksec label so inherit the label from the parent socket */
BUG_ON(sksec->sid != SECINITSID_UNLABELED);
sksec->sid = isec->sid;
}
sksec->sclass = isec->sclass;
}