From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 5053B385842A; Wed,  3 Nov 2021 09:59:10 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5053B385842A
From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/28340] ld.so crashes while loading a DSO with a
 read-only dynamic section
Date: Wed, 03 Nov 2021 09:59:10 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: glibc
X-Bugzilla-Component: dynamic-link
X-Bugzilla-Version: 2.34
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: siddhesh at sourceware dot org
X-Bugzilla-Target-Milestone: 2.35
X-Bugzilla-Flags: security-
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-28340-131-COdP1f9Lcf@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-28340-131@http.sourceware.org/bugzilla/>
References: <bug-28340-131@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: glibc-bugs@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Glibc-bugs mailing list <glibc-bugs.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/glibc-bugs>,
 <mailto:glibc-bugs-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/glibc-bugs/>
List-Help: <mailto:glibc-bugs-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/glibc-bugs>,
 <mailto:glibc-bugs-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Wed, 03 Nov 2021 09:59:10 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D28340

--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gn=
u.org> ---
The release/2.34/master branch has been updated by Florian Weimer
<fw@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dglibc.git;h=3Df42373f911a28d34325=
a5bfc1ed5a962c89da7eb

commit f42373f911a28d34325a5bfc1ed5a962c89da7eb
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Sep 16 08:15:29 2021 -0700

    ld.so: Replace DL_RO_DYN_SECTION with dl_relocate_ld [BZ #28340]

    We can't relocate entries in dynamic section if it is readonly:

    1. Add a l_ld_readonly field to struct link_map to indicate if dynamic
    section is readonly and set it based on p_flags of PT_DYNAMIC segment.
    2. Replace DL_RO_DYN_SECTION with dl_relocate_ld to decide if dynamic
    section should be relocated.
    3. Remove DL_RO_DYN_TEMP_CNT.
    4. Don't use a static dynamic section to make readonly dynamic section
    in vDSO writable.
    5. Remove the temp argument from elf_get_dynamic_info.

    This fixes BZ #28340.

    Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
    (cherry picked from commit b413280cfb16834450f66f554bc0d618bb513851)

--=20
You are receiving this mail because:
You are on the CC list for the bug.=