6.8-stable review patch. If anyone has any objections, please let me know.
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From: Sungwoo Kim iam@sung-woo.kim
[ Upstream commit d2706004a1b8b526592e823d7e52551b518a7941 ]
Fix potential null-ptr-deref in hci_le_big_sync_established_evt().
Fixes: f777d8827817 (Bluetooth: ISO: Notify user space about failed bis connections) Signed-off-by: Sungwoo Kim iam@sung-woo.kim Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/hci_event.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 9d1063c51ed29..0f56ad33801e3 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -7181,6 +7181,8 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data, u16 handle = le16_to_cpu(ev->bis[i]);
bis = hci_conn_hash_lookup_handle(hdev, handle); + if (!bis) + continue;
set_bit(HCI_CONN_BIG_SYNC_FAILED, &bis->flags); hci_connect_cfm(bis, ev->status);