From: Jeff Vander Stoep <je...@google.com> [ Upstream commit af545bb5ee53f5261db631db2ac4cde54038bdaf ]
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 <r...@google.com> https://android-review.googlesource.com/c/device/generic/goldfish/+/1468545/ Signed-off-by: Jeff Vander Stoep <je...@google.com> Reviewed-by: James Morris <jamor...@linux.microsoft.com> Link: https://lore.kernel.org/r/20201023143757.377574-1-je...@google.com Signed-off-by: Jakub Kicinski <k...@kernel.org> Signed-off-by: Sasha Levin <sas...@kernel.org> --- net/vmw_vsock/af_vsock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 7bd6c8199ca67..3a074a03d3820 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -621,7 +621,7 @@ struct sock *__vsock_create(struct net *net, vsk->owner = get_cred(psk->owner); vsk->connect_timeout = psk->connect_timeout; } 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; } -- 2.27.0
