Bluetooth: ISO: lock sk in iso_sock_getname

Accessing iso_pi(sk)->conn requires lock_sock, which is not held here.

Fix by adding the lock/release.

Fixes: 2df108c227b2 ("Bluetooth: ISO: Fix using BT_SK_PA_SYNC to detect BIS sockets")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index 299a933..dbb8f43 100644 (file)
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -1472,6 +1472,8 @@ static int iso_sock_getname(struct socket *sock, struct sockaddr *addr,
 
        BT_DBG("sock %p, sk %p", sock, sk);
 
+       lock_sock(sk);
+
        addr->sa_family = AF_BLUETOOTH;
 
        if (peer) {
@@ -1493,6 +1495,8 @@ static int iso_sock_getname(struct socket *sock, struct sockaddr *addr,
                sa->iso_bdaddr_type = iso_pi(sk)->src_type;
        }
 
+       release_sock(sk);
+
        return len;
 }