5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Griffin Kroah-Hartman <griffin@xxxxxxxxx>
commit 538fd3921afac97158d4177139a0ad39f056dbb2 upstream.
hci_conn_params_add() never checks for a NULL value and could lead to a NULL
pointer dereference causing a crash.
Fixed by adding error handling in the function.
Cc: Stable <stable@xxxxxxxxxx>
Fixes: 5157b8a503fa ("Bluetooth: Fix initializing conn_params in scan phase")
Signed-off-by: Griffin Kroah-Hartman <griffin@xxxxxxxxx>
Reported-by: Yiwei Zhang <zhan4630@xxxxxxxxxx>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/bluetooth/mgmt.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2967,6 +2967,10 @@ static int pair_device(struct sock *sk,
* will be kept and this function does nothing.
*/
p = hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
+ if (!p) {
+ err = -EIO;
+ goto unlock;
+ }
if (p->auto_connect == HCI_AUTO_CONN_EXPLICIT)
p->auto_connect = HCI_AUTO_CONN_DISABLED;
