linux-kernel - Re: [PATCH v2] Bluetooth: hci_h4: Fix padding calculation error within h4_recv

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Message-Id: <6935AD40-7060-4A42-9DB6-74DEB6516D6D@holtmann.org>
Date:   Tue, 16 Nov 2021 14:54:24 +0100
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Zijun Hu <zijuhu@...eaurora.org>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        linux-arm-msm@...r.kernel.org, c-hbandi@...eaurora.org,
        hemantg@...eaurora.org, rjliao@...eaurora.org,
        Zijun Hu <quic_zijuhu@...cinc.com>
Subject: Re: [PATCH v2] Bluetooth: hci_h4: Fix padding calculation error
 within h4_recv_buf()

Hi Zijun,

> it is erroneous to calculate padding by subtracting length of type
> indication from skb->len, it will cause data analysis error for
> alignment which is greater than 1, so fixed by adding length of type
> indication with skb->len.
> 
> Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
> ---
> drivers/bluetooth/hci_h4.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel