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From: Andrew Morton <akpm@osdl.org>
To: Andrew Victor <andrew@sanpeople.com>
Cc: linux-kernel@vger.kernel.org, alessandro.zummo@towertech.it
Subject: Re: [PATCH] RTC: Ensure that time being passed to set_alarm() is valid.
Date: Wed, 7 Jun 2006 11:39:11 -0700	[thread overview]
Message-ID: <20060607113911.1dd03687.akpm@osdl.org> (raw)
In-Reply-To: <1149704455.20386.90.camel@fuzzie.sanpeople.com>

On 07 Jun 2006 20:20:55 +0200
Andrew Victor <andrew@sanpeople.com> wrote:

> RTC: Ensure that the time being passed to set_alarm() is valid.
> 
> 
> Signed-off-by: Andrew Victor <andrew@sanpeople.com>
> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
> 
> 
> diff -urN -x CVS linux-2.6.17-rc6/drivers/rtc/interface.c
> linux-2.6.17-rc/drivers/rtc/interface.c
> --- linux-2.6.17-rc6/drivers/rtc/interface.c	Tue Jun  6 10:28:05 2006
> +++ linux-2.6.17-rc/drivers/rtc/interface.c	Wed Jun  7 11:46:28 2006
> @@ -129,6 +129,10 @@
>  	int err;
>  	struct rtc_device *rtc = to_rtc_device(class_dev);
>  
> +	err = rtc_valid_tm(&alarm->time);
> +	if (err != 0)
> +		return err;
> +
>  	err = mutex_lock_interruptible(&rtc->ops_lock);
>  	if (err)
>  		return -EBUSY;
> 

More details, please.  How can this situation come about?  Buggy kernel
code?  Userspace action?

  reply	other threads:[~2006-06-07 18:40 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-07 18:20 Andrew Victor
2006-06-07 18:39 ` Andrew Morton [this message]
2006-06-07 18:50   ` Alessandro Zummo
2006-06-07 19:31 ` Russell King
2006-06-08  6:23   ` Andrew Victor

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