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Bluetooth: qca: fix info leak when fetching board id

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BugLink: https://bugs.launchpad.net/bugs/2070349

commit 0adcf6be1445ed50bfd4a451a7a782568f270197 upstream.

Add the missing sanity check when fetching the board id to avoid leaking
slab data when later requesting the firmware.

Fixes: a7f8dedb4b ("Bluetooth: qca: add support for QCA2066")
Cc: stable@vger.kernel.org	# 6.7
Cc: Tim Jiang <quic_tjiang@quicinc.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Johan Hovold
2024-05-01 14:34:53 +02:00
committed by Stefan Bader
parent 7574b17b84
commit 292765c208
1 changed files with 5 additions and 0 deletions
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drivers/bluetooth/btqca.c
+5
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@@ -235,6 +235,11 @@ static int qca_read_fw_board_id(struct hci_dev *hdev, u16 *bid)
goto out;
}
if (skb->len < 3) {
err = -EILSEQ;
goto out;
}
*bid = (edl->data[1] << 8) + edl->data[2];
bt_dev_dbg(hdev, "%s: bid = %x", __func__, *bid);