From: Greg KH <gregkh@linuxfoundation.org>
To: xqx12 <s2exqx@gmail.com>
Cc: jslaby@suse.cz, linux-kernel@vger.kernel.org, chyyuu@gmail.com,
xuyongjiande@gmail.com, xqx12 <xiaoqixue_1@163.com>
Subject: Re: [PATCH] tty: an overflow of multiplication in drivers/tty/cyclades.c
Date: Wed, 18 Dec 2013 16:57:40 -0800 [thread overview]
Message-ID: <20131219005740.GA6257@kroah.com> (raw)
In-Reply-To: <1387328429-15172-1-git-send-email-xiaoqixue_1@163.com>
On Wed, Dec 18, 2013 at 09:00:29AM +0800, xqx12 wrote:
> there is an overflow in the code :
> cyz_polling_cycle = (arg * HZ) / 1000,
> the multiplicator arg comes from user, so it may be an overflow if
> arg is a big number. And the value of cyc_polling_cycle will be
> wrong when it is used next time.
>
> Reported-by: Qixue Xiao <xiaoqixue_1@163.com>
> Suggested-by: Yongjian Xu <xuyongjiande@gmail.com>
> Suggested-by: Yu Chen <chyyuu@gmail.com>
> Signed-off-by: Qixue Xiao <xiaoqixue_1@163.com>
I need a "real" name as the "From:" line here, especially as it doesn't
match any of these lines either :(
next prev parent reply other threads:[~2013-12-19 2:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-18 1:00 [PATCH] tty: an overflow of multiplication in drivers/tty/cyclades.c xqx12
2013-12-19 0:57 ` Greg KH [this message]
2013-12-19 10:12 ` xiaoqixue_1
-- strict thread matches above, loose matches on Subject: below --
2013-12-20 9:49 Qixue Xiao
2013-12-16 14:21 xqx12
2013-12-17 17:39 ` Greg KH
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