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| author | Jeff Vander Stoep <jeffv@google.com> | 2020-10-23 16:37:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-10 12:35:59 +0100 |
| commit | 1aa82721dd74c9f08337ea0a22689eb2a94634ae (patch) | |
| tree | a7846002fe14cd21f49ced25ccea5f692efb759b | |
| parent | 6280db912e03089b15a3e2c2882d573d3b09bd0c (diff) | |
| download | linux-stable-1aa82721dd74c9f08337ea0a22689eb2a94634ae.tar.gz linux-stable-1aa82721dd74c9f08337ea0a22689eb2a94634ae.tar.bz2 linux-stable-1aa82721dd74c9f08337ea0a22689eb2a94634ae.zip | |
vsock: use ns_capable_noaudit() on socket create
[ 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 <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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 c88dc8ee3144..02374459c417 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -629,7 +629,7 @@ 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; } |