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Bluetooth: hci_event: Make sure ISO events don't affect non-ISO connections
[ Upstream commit ed680f925a
]
ISO events (CIS/BIS) shall only be relevant for connection with link
type of ISO_LINK, otherwise the controller is probably buggy or it is
the result of fuzzer tools such as syzkaller.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 14 additions and 0 deletions
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@ -6778,6 +6778,13 @@ static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
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goto unlock;
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}
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if (conn->type != ISO_LINK) {
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bt_dev_err(hdev,
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"Invalid connection link type handle 0x%4.4x",
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handle);
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goto unlock;
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}
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if (conn->role == HCI_ROLE_SLAVE) {
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__le32 interval;
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@ -6898,6 +6905,13 @@ static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
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if (!conn)
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goto unlock;
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if (conn->type != ISO_LINK) {
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bt_dev_err(hdev,
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"Invalid connection link type handle 0x%2.2x",
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ev->handle);
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goto unlock;
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}
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if (ev->num_bis)
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conn->handle = __le16_to_cpu(ev->bis_handle[0]);
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