[PATCH v2 2/4] net: hook socketpair() into LSM
From: David Herrmann <hidden>
Date: 2018-05-04 14:29:48
Also in:
linux-security-module, lkml, selinux
Subsystem:
networking [general], networking [sockets], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Willem de Bruijn, Linus Torvalds
Use the newly created LSM-hook for socketpair(). The default hook return-value is 0, so behavior stays the same unless LSMs start using this hook. Acked-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Tom Gundersen <redacted> Signed-off-by: David Herrmann <redacted> --- net/socket.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/net/socket.c b/net/socket.c
index f10f1d947c78..667a7b397134 100644
--- a/net/socket.c
+++ b/net/socket.c@@ -1420,6 +1420,13 @@ int __sys_socketpair(int family, int type, int protocol, int __user *usockvec) goto out; } + err = security_socket_socketpair(sock1, sock2); + if (unlikely(err)) { + sock_release(sock2); + sock_release(sock1); + goto out; + } + err = sock1->ops->socketpair(sock1, sock2); if (unlikely(err < 0)) { sock_release(sock2);
--
2.17.0