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From: "fweimer at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/29600] dlmopen hangs after loading certain
 libraries
Date: Fri, 14 Oct 2022 09:08:06 +0000
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X-Bugzilla-Product: glibc
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X-Bugzilla-Version: 2.36
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X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
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X-Bugzilla-Target-Milestone: 2.37
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29600

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
   Target Milestone|---                         |2.37
         Resolution|---                         |FIXED

--- Comment #3 from Florian Weimer <fweimer at redhat dot com> ---
Fixed for 2.37 via:

commit 2c42257314536b94cc8d52edede86e94e98c1436
Author: Florian Weimer <fweimer@redhat.com>
Date:   Fri Oct 14 11:02:25 2022 +0200

    elf: Do not completely clear reused namespace in dlmopen (bug 29600)

    The data in the _ns_debug member must be preserved, otherwise
    _dl_debug_initialize enters an infinite loop.  To be conservative,
    only clear the libc_map member for now, to fix bug 29528.

    Fixes commit d0e357ff45a75553dee3b17ed7d303bfa544f6fe
    ("elf: Call __libc_early_init for reused namespaces (bug 29528)"),
    by reverting most of it.

    Reviewed-by: Carlos O'Donell <carlos@redhat.com>
    Tested-by: Carlos O'Donell <carlos@redhat.com>

Backporting is in progress.

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