Bug#1127597: Regression: v6.12.67 ip6_tunnel: ip6gre decapsulation fails

From	F!nTcH <fintch@fintch.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1127597: Regression: v6.12.67 ip6_tunnel: ip6gre decapsulation fails
Date	2026-03-04 18:50 +0100
Message-ID	<MuYw9-50KE-3@gated-at.bofh.it> (permalink)
References	<MovGx-Cyx-1@gated-at.bofh.it> <MmS4x-h7vz-1@gated-at.bofh.it> <MovGx-Cyx-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi all,

As promised, Debian Kernel 6.12.73 works for me.

Again, thanks to all for your great job!

Regards,

F!nTcH


Le 14/02/2026 à 20:12, F!nTcH a écrit :
> Hi all,
>
> First of all, thanks for your great work!
>
> I am also concerned: I use point-to-point vti6 outer tunnel and an 
> ip6tnl as an inner tunnel (configured by systemd-networkd).
>
> 6.12.63 works fine, but doing security update to 6.12.69 broke my 
> configuration (silently discarding packets at arrival). Rolling back 
> without editing any configuration file works.
>
> I hope that GRE6 patch you mentioned would also works for me.
>
> Note that systemd-networkd makes difference between ip6tnl and ip6gre, 
> but I guess underlying processes are common.
>
> I'm waiting for next kernel release and tell you if it works.
>
> Hope it helps!
>
> Regards
>
> F!nTcH
>

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Thread

Bug#1127597: linux-image-6.12.48+deb13-amd64: GRE6 decap fails Bastien Durel <bastien.durel@geekwu.org> - 2026-02-10 10:20 +0100
  Bug#1127597: additional info Bastien Durel <bastien@durel.org> - 2026-02-10 11:10 +0100
  Bug#1127597: linux-image-6.12.48+deb13-amd64: GRE6 decap fails Tobias Fiebig <tobias@fiebig.nl> - 2026-02-10 13:30 +0100
  Processed: Re: Bug#1127597: linux-image-6.12.48+deb13-amd64: GRE6  decap fails "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-02-10 13:30 +0100
  Bug#1127597: Info received (Bug#1127597: linux-image-6.12.48+deb13-amd64: GRE6 decap fails) Tobias Fiebig <tobias@fiebig.nl> - 2026-02-10 13:50 +0100
  Bug#1127597: linux-image-6.19.0+debian+tj: v6.12.69 - ip6gre regression Tj <tj.iam.tj@proton.me> - 2026-02-10 23:00 +0100
  Bug#1127597: Regression: v6.12.67 ip6_tunnel: ip6gre decapsulation fails Tj <tj.iam.tj@proton.me> - 2026-02-11 06:10 +0100
    Bug#1127597: Regression: v6.12.67 ip6_tunnel: ip6gre decapsulation fails Greg KH <gregkh@linuxfoundation.org> - 2026-02-11 06:40 +0100
  Bug#1127597: Regression: v6.12.67 ip6_tunnel: ip6gre decapsulation fails F!nTcH <fintch@fintch.org> - 2026-03-04 18:50 +0100
    Bug#1127597: Regression: v6.12.67 ip6_tunnel: ip6gre decapsulation fails Salvatore Bonaccorso <carnil@debian.org> - 2026-03-05 10:30 +0100
  Bug#1127597: marked as done (linux-image-6.12.48+deb13-amd64:  GRE6 decap fails) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-03-13 19:40 +0100

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