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From:   Muchun Song <smuchun@gmail.com>
Date:   Wed, 19 Jun 2019 00:09:40 +0800
Message-ID: <CAPSr9jFMKb1bQAbCFLqP2+fb60kcbyJ+cDspkL5FH28CNKFz3A@mail.gmail.com>
Subject: Re: [PATCH v4] driver core: Fix use-after-free and double free on
 glue directory
To:     Greg KH <gregkh@linuxfoundation.org>
Cc:     "Rafael J. Wysocki" <rafael@kernel.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Prateek Sood <prsood@codeaurora.org>,
        Mukesh Ojha <mojha@codeaurora.org>, gkohli@codeaurora.org,
        linux-kernel <linux-kernel@vger.kernel.org>,
        linux-arm-msm <linux-arm-msm@vger.kernel.org>,
        zhaowuyun@wingtech.com
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Greg KH <gregkh@linuxfoundation.org> =E4=BA=8E2019=E5=B9=B46=E6=9C=8818=E6=
=97=A5=E5=91=A8=E4=BA=8C =E4=B8=8B=E5=8D=8811:29=E5=86=99=E9=81=93=EF=BC=9A
>
> On Tue, Jun 18, 2019 at 09:40:13PM +0800, Muchun Song wrote:
> > Ping guys ? I think this is worth fixing.
>
> That's great (no context here), but I need people to actually agree on
> what the correct fix should be.  I had two different patches that were
> saying they fixed the same issue, and that feels really wrong.

Another patch:
    Subject: [PATCH v3] drivers: core: Remove glue dirs early only
when refcount is 1

My first v1 patch:
    Subject: [PATCH] driver core: Fix use-after-free and double free
on glue directory

The above two patches are almost the same that fix is based on the refcount=
.
But why we change the solution from v1 to v4? Some discussion can
refer to the mail:

    Subject: [PATCH] driver core: Fix use-after-free and double free
on glue directory

Thanks.

Yours,
Muchun