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Bug#1140074: linux-image-7.0.10+deb13-amd64: excessive "icmp: detected local route for xx" logs

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  Bug#1140074: linux-image-7.0.10+deb13-amd64: excessive "icmp: detected local route for xx" logs debian.spotter879@passmail.net - 2026-06-15 15:10 +0200
    Processed: Re: Bug#1140074: linux-image-7.0.10+deb13-amd64:  excessive "icmp: detected local route for xx" logs "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-06-17 15:30 +0200
    Bug#1140074: linux-image-7.0.10+deb13-amd64: excessive "icmp: detected local route for xx" logs Salvatore Bonaccorso <carnil@debian.org> - 2026-06-17 15:30 +0200

#92997 — Bug#1140074: linux-image-7.0.10+deb13-amd64: excessive "icmp: detected local route for xx" logs

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Package: linux-image-7.0.10+deb13-amd64
Version: 7.0.10-1~bpo13+1
Severity: important
X-Debbugs-Cc: debian.spotter879@passmail.net

When upgrading Debian system to latest version (Trixie), with the backported kernel,
we can notice a highly unusual amount of log lines stating "icmp: detected local route for xx"
are present inside of dmesg.

This seem to be a similar issue to the one happening in an other bug report, but which was linked to a much older kernel version (#1135514), and is now considered resolved.

The problem also happens when running Debian Bookworm, and the latest backported kernel versions. This is true for at least the version "6.12.85+deb12-amd64" but is perhaps not limited to it.
renaud

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#93010 — Processed: Re: Bug#1140074: linux-image-7.0.10+deb13-amd64: excessive "icmp: detected local route for xx" logs

Processing control commands:

> tags -1 + moreinfo
Bug #1140074 [src:linux] linux-image-7.0.10+deb13-amd64: excessive "icmp: detected local route for xx" logs
Added tag(s) moreinfo.

-- 
1140074: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1140074
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#93011

Control: tags -1 + moreinfo

Hi,

On Mon, Jun 15, 2026 at 12:56:59PM +0000, debian.spotter879@passmail.net wrote:
> Package: linux-image-7.0.10+deb13-amd64
> Version: 7.0.10-1~bpo13+1
> Severity: important
> X-Debbugs-Cc: debian.spotter879@passmail.net
> 
> When upgrading Debian system to latest version (Trixie), with the
> backported kernel, we can notice a highly unusual amount of log
> lines stating "icmp: detected local route for xx" are present inside
> of dmesg.
> 
> This seem to be a similar issue to the one happening in an other bug
> report, but which was linked to a much older kernel version
> (#1135514), and is now considered resolved.

Can you please followup to this bug including the information
collected by reportbug's bugscript? In particular we will need some
more details on how your setup look at and steps triggering the issue.

> The problem also happens when running Debian Bookworm, and the
> latest backported kernel versions. This is true for at least the
> version "6.12.85+deb12-amd64" but is perhaps not limited to it.
> renaud

Does the above imply that you only are reproducing the issue with the
bpo variants in each suite? I assume not, but the information was not
entirely clear to me.

Regards,
Salvatore

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