Home | Devuan | Git | Forum | Packages | Popcon
Donate now!
Download

Devuan bug report logs - #929
libfastjson4 linked without -lm causes segfault in rsyslog with libc6 2.42

Package: libfastjson-dev; Maintainer for libfastjson-dev is (unknown); Source for libfastjson-dev is src:libfastjson.

Affects: rsyslog

Reported by: "Dimitris T." <dimitris@stinpriza.org>

Date: Thu, 4 Dec 2025 12:18:01 UTC

Severity: grave

Tags: debian

Forwarded to https://bugs.debian.org/1114612

Full log

🔗 View this message in rfc822 format

X-Loop: owner@bugs.devuan.org
Subject: bug#929: rsyslog: segfaults with latest libc6 (2.42-4)
Reply-To: Mark Hindley <mark@hindley.org.uk>, 929@bugs.devuan.org
Resent-From: Mark Hindley <mark@hindley.org.uk>
Resent-To: devuan-bugs@lists.dyne.org
Resent-CC: Devuan Developers <devuan-dev@lists.dyne.org>
X-Loop: owner@bugs.devuan.org
Resent-Date: Thu, 04 Dec 2025 13:46:01 +0000
Resent-Message-ID: <handler.929.B929.176485591012522@bugs.devuan.org>
Resent-Sender: owner@bugs.devuan.org
X-Devuan-PR-Message: followup 929
X-Devuan-PR-Package: rsyslog
X-Devuan-PR-Keywords: 
References: <176485054505.3039.12364368063517979913.reportbug@louise.lan> <176485054505.3039.12364368063517979913.reportbug@louise.lan>
X-Devuan-PR-Source: rsyslog
Received: via spool by 929-submit@bugs.devuan.org id=B929.176485591012522
          (code B ref 929); Thu, 04 Dec 2025 13:46:01 +0000
Received: (at 929) by bugs.devuan.org; 4 Dec 2025 13:45:10 +0000
Delivered-To: bugs@devuan.org
Received: from email.devuan.org [2a01:4f9:fff1:13::5fd9:f9e4]
	by doc.devuan.org with IMAP (fetchmail-6.4.39)
	for <debbugs@localhost> (single-drop); Thu, 04 Dec 2025 13:45:10 +0000 (UTC)
Received: from email.devuan.org
	by email.devuan.org with LMTP
	id 8zmXBSaQMWl+DQAAmSBk0A
	(envelope-from <mark@hindley.org.uk>)
	for <bugs@devuan.org>; Thu, 04 Dec 2025 13:44:06 +0000
Received: by email.devuan.org (Postfix, from userid 109)
	id D6465257; Thu, 04 Dec 2025 13:44:05 +0000 (UTC)
Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=193.36.131.86; helo=mx.hindley.org.uk; envelope-from=mark@hindley.org.uk; receiver=bugs.devuan.org 
Received: from mx.hindley.org.uk (193-36-131-86.cfwn.uk [193.36.131.86])
	by email.devuan.org (Postfix) with ESMTPS id 5B1984E
	for <929@bugs.devuan.org>; Thu, 04 Dec 2025 13:44:03 +0000 (UTC)
Received: from hindley.org.uk (apollo.hindleynet [192.168.1.3])
	by mx.hindley.org.uk (Postfix) with SMTP id DD954C7;
	Thu,  4 Dec 2025 13:44:01 +0000 (GMT)
Received: (nullmailer pid 2304 invoked by uid 1000);
	Thu, 04 Dec 2025 13:44:01 -0000
Date: Thu, 4 Dec 2025 13:44:01 +0000
From: Mark Hindley <mark@hindley.org.uk>
To: "Dimitris T." <dimitris@stinpriza.org>, 929@bugs.devuan.org
Message-ID: <aTGQIXuB0xLn6cOb@hindley.org.uk>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <176485054505.3039.12364368063517979913.reportbug@louise.lan>

Dimitris

Thanks.

On Thu, Dec 04, 2025 at 02:15:45PM +0200, Dimitris T. wrote:
> Package: rsyslog
> Version: 8.2510.0-5devuan1
> Severity: grave
> Justification: renders package unusable
> 
> Hey,
> since upgrading libc6 today, rsyslog fails with following message : 
> 
> # /usr/sbin/rsyslogd -n -iNONE
> /usr/sbin/rsyslogd: Relink `/usr/lib/x86_64-linux-gnu/libfastjson.so.4' with `/usr/lib/x86_64-linux-gnu/libm.so.6' for IFUNC symbol `modf'
> Segmentation fault

I have to admit to not understanding fully the intricacies of the linking and
symbols here.

There is an apparently equivalent Gentoo bug[1] that suggests this should be
resolved in libfastjson4. In other words it is for Debian to resolve.

Let me do some more research.

Mark

[1]  https://bugs.gentoo.org/961289

Send a report that this bug log contains spam.

Devuan BTS -- Powered by Debian bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson,
2005-2017 Don Armstrong, and many other contributors.

Devuan Bugs Owner <owner@bugs.devuan.org>.
Last modified: Tue Dec 9 08:57:51 2025;