From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
iso_listen_cis shall only return -EADDRINUSE if the listening socket has
the destination set to BDADDR_ANY otherwise if the destination is set to
a specific address it is for broadcast which shall be ignored.
Fixes: f764a6c2c1e4 ("Bluetooth: ISO: Add broadcast support")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
net/bluetooth/iso.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index 16da946f5881..71248163ce9a 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -502,7 +502,7 @@ static void iso_recv_frame(struct iso_conn *conn, struct sk_buff *skb)
}
/* -------- Socket interface ---------- */
-static struct sock *__iso_get_sock_listen_by_addr(bdaddr_t *ba)
+static struct sock *__iso_get_sock_listen_by_addr(bdaddr_t *src, bdaddr_t *dst)
{
struct sock *sk;
@@ -510,7 +510,10 @@ static struct sock *__iso_get_sock_listen_by_addr(bdaddr_t *ba)
if (sk->sk_state != BT_LISTEN)
continue;
- if (!bacmp(&iso_pi(sk)->src, ba))
+ if (bacmp(&iso_pi(sk)->dst, dst))
+ continue;
+
+ if (!bacmp(&iso_pi(sk)->src, src))
return sk;
}
@@ -952,7 +955,7 @@ static int iso_listen_cis(struct sock *sk)
write_lock(&iso_sk_list.lock);
- if (__iso_get_sock_listen_by_addr(&iso_pi(sk)->src))
+ if (__iso_get_sock_listen_by_addr(&iso_pi(sk)->src, &iso_pi(sk)->dst))
err = -EADDRINUSE;
write_unlock(&iso_sk_list.lock);
--
2.41.0
