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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-21 12:51:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-21 12:51:20 -0700
commit9c7db5004280767566e91a33445bf93aa479ef02 (patch)
treea6db716f212ecfaf39b53cb37266be5010d09b96
parentMerge tag 'spdx-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core (diff)
parentselinux: do not report error on connect(AF_UNSPEC) (diff)
downloadlinux-dev-9c7db5004280767566e91a33445bf93aa479ef02.tar.xz
linux-dev-9c7db5004280767566e91a33445bf93aa479ef02.zip
Merge tag 'selinux-pr-20190521' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux fix from Paul Moore: "One small SELinux patch to fix a problem when disconnecting a SCTP socket with connect(AF_UNSPEC)" * tag 'selinux-pr-20190521' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: do not report error on connect(AF_UNSPEC)
-rw-r--r--security/selinux/hooks.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index c61787b15f27..3ec702cf46ca 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4637,6 +4637,14 @@ static int selinux_socket_connect_helper(struct socket *sock,
err = sock_has_perm(sk, SOCKET__CONNECT);
if (err)
return err;
+ if (addrlen < offsetofend(struct sockaddr, sa_family))
+ return -EINVAL;
+
+ /* connect(AF_UNSPEC) has special handling, as it is a documented
+ * way to disconnect the socket
+ */
+ if (address->sa_family == AF_UNSPEC)
+ return 0;
/*
* If a TCP, DCCP or SCTP socket, check name_connect permission
@@ -4657,8 +4665,6 @@ static int selinux_socket_connect_helper(struct socket *sock,
* need to check address->sa_family as it is possible to have
* sk->sk_family = PF_INET6 with addr->sa_family = AF_INET.
*/
- if (addrlen < offsetofend(struct sockaddr, sa_family))
- return -EINVAL;
switch (address->sa_family) {
case AF_INET:
addr4 = (struct sockaddr_in *)address;