Bluetooth: Ignore H5 non-link packets in non-active state
commit 48439d501e3d9e8634bdc0c418e066870039599d upstream. When detecting a non-link packet, h5_reset_rx() frees the Rx skb. Not returning after that will cause the upcoming h5_rx_payload() call to dereference a now NULL Rx skb and trigger a kernel oops. Signed-off-by: Loic Poulain <loic.poulain@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -406,6 +406,7 @@ static int h5_rx_3wire_hdr(struct hci_uart *hu, unsigned char c)
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H5_HDR_PKT_TYPE(hdr) != HCI_3WIRE_LINK_PKT) {
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BT_ERR("Non-link packet received in non-active state");
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h5_reset_rx(h5);
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return 0;
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}
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h5->rx_func = h5_rx_payload;
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