Bug#965074: cdc_ncm: ethernet multicast traffic is filtered out

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From	Wxcafé <wxcafe@wxcafe.net>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#965074: cdc_ncm: ethernet multicast traffic is filtered out
Date	Wed, 15 Jul 2020 19:10:01 +0200
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Cross-posted to 2 groups.

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BTW, I reported this on one of my servers running 5.5.0 (installed
manually) but it affects every version up to 5.8.0-rc5, which is why I
reported to the meta-package linux-image-amd64.


-- 
Wxcafé <wxcafe@wxcafe.net>

On Wed, 2020-07-15 at 16:41 +0000, wxcafe wrote:
> Package: linux-image-amd64
> Version: 4.19+105+deb10u4
> Severity: important
> Tags: ipv6
> 
> Hey,
> 
> linux's cdc_ncm driver has a bug with multicast ethernet traffic,
> which breaks
> mDNS and ipv6, among other things. Miguel Rodríguez Pérez (
> miguel@det.uvigo.gal)
> wrote patches fixing that two years ago, but they never got merged
> even though
> as far as I can tell he fixed all the problems mentionned.
> (
> https://patchwork.kernel.org/project/linux-usb/list/?submitter=181339&state=%2A&archive=both
> )
> 
> I tried rebasing them on current mainline (5.7.8/5.8.0-rc5) and
> submit them but
> have been met with a lot of trouble with my formatting, and also
> don't want to
> use my real name (see 
> https://marc.info/?l=linux-netdev&m=159467301013480&w=2 
> https://marc.info/?t=159477625000002&r=1&w=2 
> https://marc.info/?t=159477644000003&r=1&w=2 
> https://marc.info/?t=159477680800001&r=1&w=2 
> https://marc.info/?t=159477644200002&r=1&w=2 
> https://marc.info/?t=159477662400001&r=1&w=2 etc)
> 
> As far as I know nothing should pose any problem with merging these,
> all the
> objections mentionned in the thread are resolved (as far as I can
> tell, I'm not
> a kernel dev), they build correctly on mainline, and work well.
> 
> Cheers.
> 
> -- System Information:
> Debian Release: 10.4
>   APT prefers stable
>   APT policy: (500, 'stable')
> Architecture: amd64 (x86_64)
> 
> Kernel: Linux 5.5.0-0.bpo.2-amd64 (SMP w/4 CPU cores)
> Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
> TAINT_UNSIGNED_MODULE
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE=en_US.UTF-8
> (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
> Shell: /bin/sh linked to /usr/bin/dash
> Init: systemd (via /run/systemd/system)
> 
> Versions of packages linux-image-amd64 depends on:
> ii  linux-image-4.19.0-9-amd64  4.19.118-2
> 
> linux-image-amd64 recommends no packages.
> 
> linux-image-amd64 suggests no packages.
> 
> -- no debconf information

Thread

Bug#965074: cdc_ncm: ethernet multicast traffic is filtered out wxcafe <wxcafe@wxcafe.net> - 2020-07-15 19:00 +0200
  Bug#965074: cdc_ncm: ethernet multicast traffic is filtered out Wxcafé <wxcafe@wxcafe.net> - 2020-07-15 19:10 +0200
  Bug#965074: cdc_ncm: ethernet multicast traffic is filtered out Bjørn Mork <bjorn@mork.no> - 2020-07-15 20:50 +0200
    Bug#965074: cdc_ncm: ethernet multicast traffic is filtered out Wxcafé <wxcafe@wxcafe.net> - 2020-07-16 00:50 +0200
  Bug#965074: Patches to make multicast proccesing on CDC NCM drivers Greg KH <gregkh@linuxfoundation.org> - 2020-09-02 14:10 +0200
    Bug#965074: Patches to make multicast proccesing on CDC NCM drivers Santiago Ruano Rincón <santiago.ruano-rincon@imt-atlantique.fr> - 2020-09-02 15:40 +0200
      Bug#965074: Patches to make multicast proccesing on CDC NCM drivers Greg KH <gregkh@linuxfoundation.org> - 2020-09-02 17:50 +0200
        Bug#965074: Patches to make multicast proccesing on CDC NCM drivers Santiago Ruano Rincón <santiago.ruano-rincon@imt-atlantique.fr> - 2020-09-03 10:00 +0200
  Bug#965074: Patches to make multicast proccesing on CDC NCM drivers Santiago Ruano Rincón <santiago.ruano-rincon@imt-atlantique.fr> - 2020-09-02 14:10 +0200
  Bug#965074: Patches to make multicast proccesing on CDC NCM drivers Bjørn Mork <bjorn@mork.no> - 2020-09-03 19:30 +0200
  Bug#965074: marked as done (cdc_ncm: ethernet multicast traffic  is filtered out) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-10-22 13:50 +0200

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