From 94ea7257ef24a007cb0e26476ed8871f179a749f Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Mon, 16 Mar 2015 11:45:46 +0200 Subject: [PATCH] Bluetooth: Fix verifying confirm value when lacking remote OOB data If we haven't received remote OOB data we cannot perform any special checks on the confirm value. This patch updates the check after having received the public key to only perform the verification if we have remote OOB data present. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/smp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index b8a6ce840603..de53ba1905fe 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -2562,7 +2562,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb) return sc_passkey_round(smp, SMP_CMD_PUBLIC_KEY); } - if (smp->method == REQ_OOB) { + if (test_bit(SMP_FLAG_REMOTE_OOB, &smp->flags)) { err = smp_f4(smp->tfm_cmac, smp->remote_pk, smp->remote_pk, smp->rr, 0, cfm.confirm_val); if (err) @@ -2570,7 +2570,9 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb) if (memcmp(cfm.confirm_val, smp->pcnf, 16)) return SMP_CONFIRM_FAILED; + } + if (smp->method == REQ_OOB) { if (hcon->out) smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd), smp->prnd); -- GitLab