linux-kernel - Re: [stable] [PATCH] kvm: fix crash on irqfd deassign

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20110317161308.GA12740@kroah.com>
Date:	Thu, 17 Mar 2011 09:13:08 -0700
From:	Greg KH <greg@...ah.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	jean-philippe.menil@...v-nantes.fr, stable@...nel.org,
	Jason Wang <jasowang@...hat.com>
Subject: Re: [stable] [PATCH] kvm: fix crash on irqfd deassign

On Thu, Mar 17, 2011 at 10:53:33AM +0200, Michael S. Tsirkin wrote:
> irqfd in kvm used flush_work incorrectly:
> it assumed that work scheduled previously can't run
> after flush_work, but since kvm uses a non-reentrant
> workqueue (by means of schedule_work)
> we need flush_work_sync to get that guarantee.
> 
> Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
> Reported-by: Jean-Philippe Menil <jean-philippe.menil@...v-nantes.fr>
> Tested-by: Jean-Philippe Menil <jean-philippe.menil@...v-nantes.fr>
> ---
> 
> Note: this is needed for kernel 2.6.39 and earlier.

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read Documentation/stable_kernel_rules.txt
for how to do this properly.

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/