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Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST

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[ 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 <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Luiz Augusto von Dentz 2024-01-22 09:02:47 -05:00 committed by Greg Kroah-Hartman
parent 0309b68aea
commit df193568d6
1 changed files with 4 additions and 1 deletions
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5
net/bluetooth/hci_event.c
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@ -4612,9 +4612,12 @@ 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))