3.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Johan Hedberg <johan.hedberg@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/bluetooth/mgmt.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4542,10 +4542,16 @@ static int load_long_term_keys(struct so
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,
--
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