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Re: Allowing symlinked dir-locals files?
From: |
Yuri D'Elia |
Subject: |
Re: Allowing symlinked dir-locals files? |
Date: |
Sat, 18 Sep 2021 16:10:47 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
On Mon, Aug 16 2021, Andreas Schwab wrote:
>>> Looking at the current files.el:4330, we explicitly check if the file is
>>> a regular file.
>
> Why is that a problem? If the symlink points to a regular file, it is
> still a file-regular-p.
>
>> Yes. It could also be a symlink injected by malevolent hackers.
>
> Is that different from a regular file injected by malevolent hackers?
I was giving more thought to this. I don't think there's any difference.
Assuming we're reading a versioned .dir-locals.el file, there's no way
to distinguish between a benevolent (local) file and the versioned file.
We still need to obey safe-local-variable-values just like any other
file, and AFAIK we have no concept of "trusted paths" for dir-locals
where resolution could be ambiguous.
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Yuri D'Elia <=