From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Juri Lelli <juri.lelli@arm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org,
"# v4 . 2+" <stable@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
Juri Lelli <Juri.Lelli@arm.com>
Subject: Re: [PATCH] cpufreq: Fix NULL reference crash while accessing policy->governor_data
Date: Tue, 26 Jan 2016 23:49:48 +0100 [thread overview]
Message-ID: <30317803.WdZJECVyOY@vostro.rjw.lan> (raw)
In-Reply-To: <20160126180119.GK10898@e106622-lin>
On Tuesday, January 26, 2016 06:01:19 PM Juri Lelli wrote:
> On 26/01/16 09:57, Juri Lelli wrote:
> > Hi Viresh,
> >
> > On 25/01/16 22:33, Viresh Kumar wrote:
> > > There is a little race discovered by Juri, where we are able to:
> > > - create and read a sysfs file before policy->governor_data is being set
> > > to a non NULL value.
> > > OR
> > > - set policy->governor_data to NULL, and reading a file before being
> > > destroyed.
> > >
[cut]
>
> So, this goes away with your patch (that I forward ported) and a small
> additional fix on top of that.
Which patch exactly is that?
Thanks,
Rafael
next prev parent reply other threads:[~2016-01-26 22:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 17:03 Viresh Kumar
2016-01-26 9:57 ` Juri Lelli
2016-01-26 18:01 ` Juri Lelli
2016-01-26 22:49 ` Rafael J. Wysocki [this message]
2016-01-27 10:22 ` Juri Lelli
2016-01-27 3:12 ` Viresh Kumar
2016-01-27 3:10 ` Viresh Kumar
2016-01-27 10:18 ` Juri Lelli
2016-01-27 22:54 ` Rafael J. Wysocki
2016-01-28 2:15 ` Viresh Kumar
2016-01-28 10:44 ` Juri Lelli
2016-01-29 3:33 ` Rafael J. Wysocki
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