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| author | Jeff Vander Stoep <jeffv@google.com> | 2020-10-23 16:37:57 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-10-26 16:22:42 -0700 |
| commit | af545bb5ee53f5261db631db2ac4cde54038bdaf (patch) | |
| tree | 7df760039a60bee30a6e8b623fa302be93e91b39 /net/vmw_vsock | |
| parent | 937d8420588421eaa5c7aa5c79b26b42abb288ef (diff) | |
| download | linux-af545bb5ee53f5261db631db2ac4cde54038bdaf.tar.gz linux-af545bb5ee53f5261db631db2ac4cde54038bdaf.tar.bz2 linux-af545bb5ee53f5261db631db2ac4cde54038bdaf.zip | |
vsock: use ns_capable_noaudit() on socket create
During __vsock_create() CAP_NET_ADMIN is used to determine if the
vsock_sock->trusted should be set to true. This value is used later
for determing if a remote connection should be allowed to connect
to a restricted VM. Unfortunately, if the caller doesn't have
CAP_NET_ADMIN, an audit message such as an selinux denial is
generated even if the caller does not want a trusted socket.
Logging errors on success is confusing. To avoid this, switch the
capable(CAP_NET_ADMIN) check to the noaudit version.
Reported-by: Roman Kiryanov <rkir@google.com>
https://android-review.googlesource.com/c/device/generic/goldfish/+/1468545/
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
Reviewed-by: James Morris <jamorris@linux.microsoft.com>
Link: https://lore.kernel.org/r/20201023143757.377574-1-jeffv@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/vmw_vsock')
| -rw-r--r-- | net/vmw_vsock/af_vsock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 9e93bc201cc0..b4d7b8aba003 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -739,7 +739,7 @@ static struct sock *__vsock_create(struct net *net, vsk->buffer_min_size = psk->buffer_min_size; vsk->buffer_max_size = psk->buffer_max_size; } else { - vsk->trusted = capable(CAP_NET_ADMIN); + vsk->trusted = ns_capable_noaudit(&init_user_ns, CAP_NET_ADMIN); vsk->owner = get_current_cred(); vsk->connect_timeout = VSOCK_DEFAULT_CONNECT_TIMEOUT; vsk->buffer_size = VSOCK_DEFAULT_BUFFER_SIZE; |