Bug#1104511: linux-image-6.1.0-34-amd64: USB tethering broken

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From	Salvatore Bonaccorso <carnil@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1104511: linux-image-6.1.0-34-amd64: USB tethering broken
Date	Thu, 01 May 2025 23:30:01 +0200
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Control: tags -1 + confirmed upstream
Control: forwarded -1 https://lore.kernel.org/all/e0df2d85-1296-4317-b717-bd757e3ab928@heusel.eu/
Control: found -1 6.12.25-1
Control: found -1 6.14.3-1~exp1

Hi Sylvain,

On Thu, May 01, 2025 at 01:25:32PM +0200, Sylvain Beucler wrote:
> Package: src:linux
> X-Debbugs-Cc: beuc@beuc.net
> Version: 6.1.135-1
> Severity: normal
> 
> Dear Maintainer,
> 
> After updating the stable kernel, I can no longer use USB tethering
> (wired connection sharing) with my Fairphone.
> 
> I found many similar recent reports:
> https://bugzilla.kernel.org/show_bug.cgi?id=220002
> https://lore.kernel.org/all/e0df2d85-1296-4317-b717-bd757e3ab928@heusel.eu/
> https://discussion.fedoraproject.org/t/fedora-42-tethering-from-my-phone-stopped-working-after-upgrade-device-recognized-as-wwan/148927/15
> https://bugs.gentoo.org/953555
> https://bbs.archlinux.org/viewtopic.php?id=304892
> so posting here at Debian as well for tracking.
> 
> Apparently,
>     67d1a8956d2d ("rndis_host: Flag RNDIS modems as WWAN devices")
> is the culprit.

Thanks for the report!

Just updating a bit the metadata of the bug along, which affects as
well the kernel aimed for trixie and later.

While the next stable series updates are missing the revert it should
already be on the way for 6.15-rc5 and might cherry-pick it in advance
(depending what comes first to upload).

Regards,
Salvatore

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Bug#1104511: linux-image-6.1.0-34-amd64: USB tethering broken Salvatore Bonaccorso <carnil@debian.org> - 2025-05-01 23:30 +0200

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