Re: Detected unsafe path transition / (owned by 4242) → /dev (owned by root) during canonicalization of dev/snd/timer.

From	Greg Wooledge <greg@wooledge.org>
Newsgroups	linux.debian.user
Subject	Re: Detected unsafe path transition / (owned by 4242) → /dev (owned by root) during canonicalization of dev/snd/timer.
Date	2026-05-16 17:40 +0200
Message-ID	<MVpho-5AVY-15@gated-at.bofh.it> (permalink)
References	<MVp7H-5ASG-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Sat, May 16, 2026 at 15:22:29 -0000, CGS wrote:
> I upgraded 83 packages in Trixie just now (a version change apparently) and the
> message in the subject line appeared in the standard output.

Good grief.  I just rebooted for Linux security upgrades the other day!

> What's canonicalization?

In general, it means transforming something into its most official form.
Like, taking a message that's full of abbreviations and changing each
of those abbreviations into its actual word/phrase.

If your / directory was actually owned by someone other than root, then
I'd say it's a good thing that it got fixed.

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Thread

Detected unsafe path transition / (owned by 4242)  → /dev (owned by root) during canonicalization of  dev/snd/timer. CGS <etphonehomefrance@gmail.com> - 2026-05-16 17:30 +0200
  Re: Detected unsafe path transition / (owned by 4242) → /dev (owned by  root) during canonicalization of dev/snd/timer. <tomas@tuxteam.de> - 2026-05-16 17:40 +0200
  Re: Detected unsafe path transition / (owned by 4242) → /dev (owned by  root) during canonicalization of dev/snd/timer. Greg Wooledge <greg@wooledge.org> - 2026-05-16 17:40 +0200
    Re: Detected unsafe path transition / (owned by 4242)  → /dev (owned by root) during canonicalization of  dev/snd/timer. CGS <etphonehomefrance@gmail.com> - 2026-05-16 18:20 +0200
      Re: Detected unsafe path transition / (owned by 4242) → /dev (owned by  root) during canonicalization of dev/snd/timer. Greg Wooledge <greg@wooledge.org> - 2026-05-16 20:40 +0200
        Re: Detected unsafe path transition / (owned by 4242)  → /dev (owned by root) during canonicalization of  dev/snd/timer. CGS <etphonehomefrance@gmail.com> - 2026-05-17 16:50 +0200
      Re: Detected unsafe path transition / (owned by 4242) → /dev (owned by  root) during canonicalization of dev/snd/timer. Andy Smith <andy@strugglers.net> - 2026-05-16 20:40 +0200
        Re: Detected unsafe path transition / (owned by 4242)  → /dev (owned by root) during canonicalization of  dev/snd/timer. CGS <etphonehomefrance@gmail.com> - 2026-05-17 16:50 +0200

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