From: Luiz Augusto von Dentz Date: Mon, 22 Jan 2024 14:02:47 +0000 (-0500) Subject: Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c3df637266df29edee85e94cab5fd7041e5753ba;p=linux Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST [ Upstream commit 7e74aa53a68bf60f6019bd5d9a9a1406ec4d4865 ] If we received HCI_EV_IO_CAPA_REQUEST while HCI_OP_READ_REMOTE_EXT_FEATURES is yet to be responded assume the remote does support SSP since otherwise this event shouldn't be generated. Link: https://lore.kernel.org/linux-bluetooth/CABBYNZ+9UdG1cMZVmdtN3U2aS16AKMCyTARZZyFX7xTEDWcMOw@mail.gmail.com/T/#t Fixes: c7f59461f5a7 ("Bluetooth: Fix a refcnt underflow problem for hci_conn") Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Sasha Levin --- diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index c4a35d4612b0..0bfd856d079d 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -4720,9 +4720,12 @@ static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb) hci_dev_lock(hdev); conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); - if (!conn || !hci_conn_ssp_enabled(conn)) + if (!conn || !hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) goto unlock; + /* Assume remote supports SSP since it has triggered this event */ + set_bit(HCI_CONN_SSP_ENABLED, &conn->flags); + hci_conn_hold(conn); if (!hci_dev_test_flag(hdev, HCI_MGMT))