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From: Andrea Arcangeli <aarcange@redhat.com>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	syzkaller <syzkaller@googlegroups.com>
Subject: Re: mm: use-after-free in zap_page_range
Date: Fri, 3 Mar 2017 17:23:48 +0100	[thread overview]
Message-ID: <20170303162348.GD7496@redhat.com> (raw)
In-Reply-To: <CACT4Y+YQscOM_H-gZqyzd7n79nUA3QM8=UsX55QEyoapn4QqdA@mail.gmail.com>

Hello Dmitry,

On Fri, Mar 03, 2017 at 02:54:26PM +0100, Dmitry Vyukov wrote:
> The following program triggers use-after-free in zap_page_range:
> https://gist.githubusercontent.com/dvyukov/b59dfbaa0cb1e5231094d228fa57c9bd/raw/95c4da18cb96f8aaa47c10012d8c4484fd5917ad/gistfile1.txt

I posted the fix for this one yesterday (found while doing more code
reviews of the upstream code searching for any other potential issue):

https://www.spinics.net/lists/linux-mm/msg122905.html
https://www.spinics.net/lists/linux-mm/msg122903.html

Could you test with those two applied on top of the others updates
that are already in -mm?

Thanks!
Andrea

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WARNING: multiple messages have this Message-ID (diff)
From: Andrea Arcangeli <aarcange@redhat.com>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	syzkaller <syzkaller@googlegroups.com>
Subject: Re: mm: use-after-free in zap_page_range
Date: Fri, 3 Mar 2017 17:23:48 +0100	[thread overview]
Message-ID: <20170303162348.GD7496@redhat.com> (raw)
In-Reply-To: <CACT4Y+YQscOM_H-gZqyzd7n79nUA3QM8=UsX55QEyoapn4QqdA@mail.gmail.com>

Hello Dmitry,

On Fri, Mar 03, 2017 at 02:54:26PM +0100, Dmitry Vyukov wrote:
> The following program triggers use-after-free in zap_page_range:
> https://gist.githubusercontent.com/dvyukov/b59dfbaa0cb1e5231094d228fa57c9bd/raw/95c4da18cb96f8aaa47c10012d8c4484fd5917ad/gistfile1.txt

I posted the fix for this one yesterday (found while doing more code
reviews of the upstream code searching for any other potential issue):

https://www.spinics.net/lists/linux-mm/msg122905.html
https://www.spinics.net/lists/linux-mm/msg122903.html

Could you test with those two applied on top of the others updates
that are already in -mm?

Thanks!
Andrea

  reply	other threads:[~2017-03-03 16:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03 13:54 mm: use-after-free in zap_page_range Dmitry Vyukov
2017-03-03 13:54 ` Dmitry Vyukov
2017-03-03 16:23 ` Andrea Arcangeli [this message]
2017-03-03 16:23   ` Andrea Arcangeli
2017-03-08 12:51   ` Dmitry Vyukov
2017-03-08 12:51     ` Dmitry Vyukov

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