diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2014-05-29 19:36:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-30 20:14:03 -0700 |
| commit | 01233a9c832037fc460e278575901a4229f3bb9e (patch) | |
| tree | 19ad27ad52bbe570fb3ba9ba4c5d2ad0ad97a967 | |
| parent | 8556876847effb03ca33334464c2854bdd3f0ed8 (diff) | |
Bluetooth: Fix properly ignoring LTKs of unknown types
commit 61b433579b6ffecb1d3534fd482dcd48535277c8 upstream.
In case there are new LTK types in the future we shouldn't just blindly
assume that != MGMT_LTK_UNAUTHENTICATED means that the key is
authenticated. This patch adds explicit checks for each allowed key type
in the form of a switch statement and skips any key which has an unknown
value.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/bluetooth/mgmt.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 264c746fa3b6..c88b2b671849 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -4542,10 +4542,16 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev, else type = HCI_SMP_LTK_SLAVE; - if (key->type == MGMT_LTK_UNAUTHENTICATED) + switch (key->type) { + case MGMT_LTK_UNAUTHENTICATED: authenticated = 0x00; - else + break; + case MGMT_LTK_AUTHENTICATED: authenticated = 0x01; + break; + default: + continue; + } hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type, authenticated, key->val, key->enc_size, key->ediv, |