[PATCH 02/11] Bluetooth: ISO: lock sk in iso_sock_getname

[Pauli Virtanen]

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@xxxxxx>
---
 net/bluetooth/iso.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index 299a9336b5e1..dbb8f43052f0 100644
--- 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;
 }
 
-- 
2.55.0