[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP
From: |
Edgar E. Iglesias |
Subject: |
Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses |
Date: |
Thu, 8 May 2014 06:59:22 +0000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Thu, May 08, 2014 at 08:50:33AM +0200, Samuel Thibault wrote:
> Edgar E. Iglesias, le Thu 08 May 2014 06:10:18 +0000, a écrit :
> > The search part looks OK to me but when adding to the arp table, don't
> > you at least want to avoid adding mappings for 0.0.0.0/32?
>
> I don't see the gain, actually. It would mean burning some CPU all the
> time just to save a small potential memory loss and CPU burning in the
> rare case when the guest behaves oddly.
>
> > to avoid for ex garps to pollute the cache with invalid entries?
>
> Only one entry will be created and updated by garps. The guest already
> has a lot of ways to pollute the cache :)
Hi,
I was under the impression that entries for 0.0.0.0 are strictly
invalid (not about performance). I might be wrong though.
Cheers,
Edgar
- [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Samuel Thibault, 2014/05/07
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Edgar E. Iglesias, 2014/05/08
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Samuel Thibault, 2014/05/08
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses,
Edgar E. Iglesias <=
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Samuel Thibault, 2014/05/13
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Edgar E. Iglesias, 2014/05/13
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Samuel Thibault, 2014/05/13
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Edgar E. Iglesias, 2014/05/13
- Re: [Qemu-devel] [PATCH, DoS] slirp (arp): do not special-case bogus IP addresses, Samuel Thibault, 2014/05/13
[Qemu-devel] [PATCHv2, DoS] slirp (arp): do not special-case bogus IP addresses, Samuel Thibault, 2014/05/13