github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-05 21:15:53 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

FROMGIT: selinux: vsock: Set SID for socket returned by accept()

Browse Source 
For AF_VSOCK, accept() currently returns sockets that are unlabelled.
Other socket families derive the child's SID from the SID of the parent
and the SID of the incoming packet. This is typically done as the
connected socket is placed in the queue that accept() removes from.

Reuse the existing 'security_sk_clone' hook to copy the SID from the
parent (server) socket to the child. There is no packet SID in this
case.

Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 1f935e8e72
 https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git master)
Link: https://lore.kernel.org/r/20210319130541.2188184-1-dbrazdil@google.com
Bug: 130668487
Change-Id: Idb656917cc600df7cb83cb15a6c0f0499045d77f
This commit is contained in:
David Brazdil 2021-03-19 13:05:41 +00:00
parent abbebf1a3e
commit e26fd78761
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
net/vmw_vsock/af_vsock.c
View File

@ -738,6 +738,7 @@ static struct sock *__vsock_create(struct net *net,
vsk->buffer_size = psk->buffer_size;
vsk->buffer_min_size = psk->buffer_min_size;
vsk->buffer_max_size = psk->buffer_max_size;
security_sk_clone(parent, sk);
} else {
vsk->trusted = ns_capable_noaudit(&init_user_ns, CAP_NET_ADMIN);
vsk->owner = get_current_cred();