From: carnil@debian.org   
      
   Control: reassign -1 src:linux   
   Control: forcemerge 1127597 -1   
      
   Hi Michael,   
      
   On Wed, Feb 11, 2026 at 01:34:25PM +0100, Michael Saxl wrote:   
   > Package: linux-image-6.12.69+deb13-amd64   
   > Severity: normal   
   > Tags: ipv6   
   >   
   > Dear Maintainer,   
   >   
   > I've updated to the latest version of the 6.12. branch from 6.12.63 to   
   > 6.12.69.   
   >   
   > I have a ip6gre tunnel secured by ipsec. after the update to that   
   > version no packet is received anymore on the gre device and the error   
   > counter counts up for every inbound gre packet.   
   >   
   > The information that the error counter counts seems to confirm that the   
   > kernel finds the right gre device the packet should be delivered to.   
   >   
   > I recompiled the kernel reverting   
   > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.g   
   t/commit/net/ipv6/ip6_tunnel.c?id=81c734dae203757fb3c9eee6f9896386940776bd   
   >   
   > and now the custom dpkg-buildpackage (now obviosly -unsigned) works   
   > again.   
   >   
   > Looking at the code I don't see why it would fail, especially since   
   > kernel 6.19 from ubuntu seems to work (I did not check if 6.19 includes   
   > this, if it does not that the mentioned commit above is the real   
   > regression)   
      
   This has been reported already as #1127597, I'm merging the bugs.   
      
   See as well https://bugs.debian.org/1127597#69 for the patch to fix   
   the issue.   
      
   Regards,   
   Salvatore   
      
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