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From: "janderson at rice dot edu" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/30134] DT_AUDIT is ignored for dlopen()ed solib
Date: Mon, 27 Feb 2023 06:57:54 +0000 [thread overview]
Message-ID: <bug-30134-131-i6FX23qvid@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-30134-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=30134
--- Comment #16 from Jonathon Anderson <janderson at rice dot edu> ---
(In reply to Stas Sergeev from comment #15)
> > I suppose solibs could be different, but AFAICT you would have to refactor
> > _dl_map_object_from_fd to *also* read the dynamic section and recursively
> > load any auditors *before* its call to _dl_map_segments.
>
> Or just do similar to dl_main() and call the
> new auditors at the end? Of course objsearch
> will be skipped, but its the same for dl_main()
> and no one complained. It would be really weird
> if the auditor wants to alter the object path
> of the object to which it linked to.
Won't it skip la_premap too? Because DT_AUDIT auditors would only be loaded
after the object has been mapped (and the dynamic section is accessible).
la_premap has already fired before the auditor is even loaded, so the auditor
entirely unable to customize the mapping for the object itself. Based on
comment #13 isn't that a critical problem for your use case?
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next prev parent reply other threads:[~2023-02-27 6:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-17 16:50 [Bug dynamic-link/30134] New: " stsp at users dot sourceforge.net
2023-02-17 19:48 ` [Bug dynamic-link/30134] " fweimer at redhat dot com
2023-02-18 1:17 ` stsp at users dot sourceforge.net
2023-02-18 1:44 ` stsp at users dot sourceforge.net
2023-02-20 11:00 ` fweimer at redhat dot com
2023-02-20 11:50 ` stsp at users dot sourceforge.net
2023-02-20 12:15 ` fweimer at redhat dot com
2023-02-20 12:56 ` stsp at users dot sourceforge.net
2023-02-23 15:58 ` janderson at rice dot edu
2023-02-23 16:02 ` stsp at users dot sourceforge.net
2023-02-26 16:00 ` janderson at rice dot edu
2023-02-26 16:12 ` stsp at users dot sourceforge.net
2023-02-26 16:55 ` janderson at rice dot edu
2023-02-26 17:09 ` stsp at users dot sourceforge.net
2023-02-26 21:45 ` janderson at rice dot edu
2023-02-27 6:03 ` stsp at users dot sourceforge.net
2023-02-27 6:57 ` janderson at rice dot edu [this message]
2023-02-27 7:28 ` stsp at users dot sourceforge.net
2023-02-27 8:16 ` stsp at users dot sourceforge.net
2023-02-27 8:27 ` stsp at users dot sourceforge.net
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