From: Stefan Schmidt <stefan@datenfreihafen.org>
To: David Miller <davem@davemloft.net>, yuehaibing@huawei.com
Cc: h.morris@cascoda.com, alex.aring@gmail.com,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-wpan@vger.kernel.org
Subject: Re: [PATCH net-next] ieee802154: ca8210: fix possible u8 overflow in ca8210_rx_done
Date: Tue, 11 Dec 2018 09:26:37 +0100 [thread overview]
Message-ID: <87dbac94-8b2e-8cef-5166-8c130529ceb9@datenfreihafen.org> (raw)
In-Reply-To: <20181210.220107.751606140724107779.davem@davemloft.net>
Hello Dave.
On 11.12.18 07:01, David Miller wrote:
> From: YueHaibing <yuehaibing@huawei.com>
> Date: Tue, 11 Dec 2018 11:13:39 +0800
>
>> gcc warning this:
>>
>> drivers/net/ieee802154/ca8210.c:730:10: warning:
>> comparison is always false due to limited range of data type [-Wtype-limits]
>>
>> 'len' is u8 type, we get it from buf[1] adding 2, which can overflow.
>> This patch change the type of 'len' to unsigned int to avoid this,also fix
>> the gcc warning.
>>
>> Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
>> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
>
> WPAN maintainers, I am assuming that as maintainers you will be
> picking this up and sending it to me.
That's correct. On driver patches I always wait 2 days or so to give the
driver maintainer a chance to reply before I go ahead and apply it.
I will take this one directly now and do some smoke testing. It will
come together with another fix as pull request to you.
regards
Stefan Schmidt
next prev parent reply other threads:[~2018-12-11 8:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-11 3:13 [PATCH net-next] ieee802154: ca8210: fix possible u8 overflow in ca8210_rx_done YueHaibing
2018-12-11 6:01 ` David Miller
2018-12-11 8:26 ` Stefan Schmidt [this message]
2018-12-11 15:23 ` Alexander Aring
2018-12-11 8:39 ` Stefan Schmidt
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