From: Greg KH <gregkh@linuxfoundation.org>
To: nslusarek@gmx.net
Cc: jhansen@vmware.com, arnd@arndb.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] misc/vmw_vmci: bail out earlier on too big queue allocation
Date: Wed, 9 Dec 2020 19:41:14 +0100 [thread overview]
Message-ID: <X9EaSums0U4BB9r6@kroah.com> (raw)
In-Reply-To: <X9EaIdgBeU/QBazh@kroah.com>
On Wed, Dec 09, 2020 at 07:40:33PM +0100, Greg KH wrote:
> On Sun, Nov 22, 2020 at 06:40:57PM +0100, nslusarek@gmx.net wrote:
> > From: Norbert Slusarek <nslusarek@gmx.net>
> > Date: Sun, 22 Nov 2020 19:16:41 +0100
> > Subject: [PATCH] misc/vmw_vmci: bail out earlier on too big queue allocation
> >
> > For the allocation of a queue pair in qp_host_alloc_queue() an arbitrary value can be
> > passed for produce_size, which can lead to miscalculation of memory we'd like to allocate
> > in one take. A warning is triggered at __alloc_pages_nodemask() in mm/page_alloc.c:4737
> > which aborts the false allocation, but it results in a VMware machine freezing
> > for an infinite time.
> >
> > Signed-off-by: Norbert Slusarek <nslusarek@gmx.net>
> >
>
> <snip>
>
> Can you resend this in a non-html format, so that we can apply it, and
> so it will show up on the public mailing lists?
Oh nevermind, you already did, sorry about that...
next prev parent reply other threads:[~2020-12-09 18:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <trinity-96cb58f7-02ae-4ae2-b05d-169e1aa82c64-1606066857501@3c-app-gmx-bs01>
2020-12-09 18:40 ` [PATCH] misc/vmw_vmci: bail out earlier on too big queue allocation Greg KH
2020-12-09 18:41 ` Greg KH [this message]
2020-11-22 17:44 nslusarek
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