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From: Daniel Colascione <dancol@dancol.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>, 34180@debbugs.gnu.org
Subject: bug#34180: 27.0.50; argv[0] used incorrectly to find the .pdmp
Date: Sat, 26 Jan 2019 19:54:29 -0800	[thread overview]
Message-ID: <5d5d6da7-d0d4-82ae-8034-78d47a6b12c8@dancol.org> (raw)
In-Reply-To: <jwv7eev2w88.fsf@iro.umontreal.ca>

On 1/23/19 8:07 AM, Stefan Monnier wrote:
> Package: Emacs
> Version: 27.0.50
> 
> 
> Currently, the first .pdmp file that we try to load is found by adding
> ".pdmp" to argv[0].
> This has 2 problems:
> 
> 1- It fails miserably if argv[0] is a name relative to $PATH since it
>     performs the lookup relative to $PWD instead, which is additionally
>     a security issue.
> 
> 2- If the executable named by argv[0] is a symlink, it does not try to
>     follow the symlink in case the .pdmp is stored next to the
>     destination rather than next to the source.

Yep. We should definitely fix that. realpath on argv[0] seems like the 
right thing.





  reply	other threads:[~2019-01-27  3:54 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-23 16:07 bug#34180: 27.0.50; argv[0] used incorrectly to find the .pdmp Stefan Monnier
2019-01-27  3:54 ` Daniel Colascione [this message]
2019-01-27 15:23   ` Eli Zaretskii
2021-10-11 14:02     ` Lars Ingebrigtsen
2021-10-11 14:04       ` Lars Ingebrigtsen
2021-10-11 15:10       ` Paul Eggert
2021-10-11 16:05         ` Eli Zaretskii
2021-10-11 20:13         ` Daniel Colascione
2021-10-12  0:51           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-12 10:51           ` Lars Ingebrigtsen
2021-10-12 11:54             ` Philipp Stephani
2021-10-12 11:59               ` Lars Ingebrigtsen
2021-10-12 14:10             ` Eli Zaretskii
2021-10-11 15:54       ` Eli Zaretskii
2021-10-12 10:48         ` Lars Ingebrigtsen
2021-10-11 21:16       ` Richard Stallman
2021-10-12 12:27 ` Mattias Engdegård
2021-10-12 16:24   ` Daniel Colascione
2021-10-12 16:46     ` Eli Zaretskii
2021-10-12 16:59     ` Mattias Engdegård

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