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Re: [Qemu-block] [Qemu-devel] [PATCH] nbd: Fully initialize client in ca


From: Eric Blake
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH] nbd: Fully initialize client in case of failed negotiation
Date: Fri, 9 Jun 2017 06:57:26 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0

On 05/26/2017 10:04 PM, Eric Blake wrote:
> If a non-NBD client connects to qemu-nbd, we would end up with
> a SIGSEGV in nbd_cilent_put() because we were trying to
> unregister the client's association to the export, even though
> we skipped inserting the client into that list.  Easy trigger
> in two terminals:
> 
> $ qemu-nbd -p 30001 --format=raw file
> $ nmap 127.0.0.1 -p 30001

Since this is now part of a CVE fix, I'm adding qemu-stable in cc.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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