From: Avi Kivity <avi@redhat.com>
To: Oscon <oscon@mail.datanet.hu>
Cc: kvm@vger.kernel.org, Greg KH <greg@kroah.com>
Subject: Re: kernel memory allocation bug in 2.6.27.32-2.6.27.41 kvm section
Date: Sun, 27 Dec 2009 12:13:00 +0200 [thread overview]
Message-ID: <4B37332C.4020100@redhat.com> (raw)
In-Reply-To: <200912171635.07009.oscon@mail.datanet.hu>
On 12/17/2009 05:35 PM, Oscon wrote:
> Hello!
>
> I can't register new account in bugzilla.kernel.org. / my ISP's spamfilter
> problem (?) maybe./
>
> --------------------------
>
> I sent this mail to Greg KH (2.6.27.y maintainer), he sent me:
>
> "Can you get the kvm maintainers to agree that this is correct?
>
> thanks,
>
> greg k-h"
>
> ---------------
> So the bug :
>
> I found a memory allocation bug in kvm/mmu.c& kvm_main.c. /in
> kvm_destroy_vm()/
>
> Affected kernel: 2.6.27.32-2.6.27.41
>
> Mainline kernel (2.6.32) is not affected. (Modified kvm subsystem.)
>
> Cause:
> http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fstable%2Flinux-2.6.27.y.git;a=commitdiff_plain;h=d2127c8300fb1ec54af56faee17170e7a525326d
>
> Solution: Revert this patch.
>
> This bug can cause local DoS in the host system.
>
>
Looks like some other patch is missing in 2.6.27.y. Not sure what it is.
But it's safer to revert this patch for now.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-12-27 10:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-17 15:35 kernel memory allocation bug in 2.6.27.32-2.6.27.41 kvm section Oscon
2009-12-27 10:13 ` Avi Kivity [this message]
2010-01-05 19:37 ` Greg KH
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