netdev - Re: [PATCH net 0/2] hsr: Send correct HSRv0 supervision frames

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: <aRRWVkY4LghIA7RP@fedora>
Date: Wed, 12 Nov 2025 09:41:42 +0000
From: Hangbin Liu <liuhangbin@...il.com>
To: Felix Maurer <fmaurer@...hat.com>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, horms@...nel.org,
	m-karicheri2@...com, arvid.brodin@...en.se, bigeasy@...utronix.de
Subject: Re: [PATCH net 0/2] hsr: Send correct HSRv0 supervision frames

On Tue, Nov 11, 2025 at 05:29:31PM +0100, Felix Maurer wrote:
> Hangbin recently reported that the hsr selftests were failing and noted
> that the entries in the node table were not merged, i.e., had
> 00:00:00:00:00:00 as MacAddressB forever [1].
> 
> This failure only occured with HSRv0 because it was not sending
> supervision frames anymore. While debugging this I found that we were
> not really following the HSRv0 standard for the supervision frames we
> sent, so I additionally made a few changes to get closer to the standard
> and restore a more correct behavior we had a while ago.
> 
> The selftests can still fail because they take a while and run into the
> timeout. I did not include a change of the timeout because I have more
> improvements to the selftests mostly ready that change the test duration
> but are net-next material.
> 
> [1]: https://lore.kernel.org/netdev/aMONxDXkzBZZRfE5@fedora/
> 
> Felix Maurer (2):
>   hsr: Fix supervision frame sending on HSRv0
>   hsr: Follow standard for HSRv0 supervision frames
> 
>  net/hsr/hsr_device.c  |  5 ++++-
>  net/hsr/hsr_forward.c | 22 +++++++++++++++-------
>  2 files changed, 19 insertions(+), 8 deletions(-)
> 
> --
> 2.51.0
> 

Tested-by: Hangbin Liu <liuhangbin@...il.com>