linux-kernel - [PATCH] kconfig: fix qconf segfault by deleting heap objects

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20160108204404.GA14615@localhost>
Date:	Fri, 8 Jan 2016 20:44:04 +0000
From:	Chris Bainbridge <chris.bainbridge@...il.com>
To:	yann.morin.1998@...e.fr
Cc:	linux-kernel@...r.kernel.org, mmarek@...e.cz,
	bbarbulovski@...il.com
Subject: [PATCH] kconfig: fix qconf segfault by deleting heap objects

On Debian stable (qt-4.8.6) 'make xconfig' intermittently fails due to
qconf segfaulting at exit time in QXcbEventReader. The cause of this is
destructors on the heap objects never being called, so fix this by
properly deleting the heap objects before exit.

Signed-off-by: Chris Bainbridge <chris.bainbridge@...il.com>
---
Trivial error, as described at https://forum.qt.io/topic/26658/solved-segfault-on-qapplication-exit
---
 scripts/kconfig/qconf.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 91b7e6fbc364..fc5555992220 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1863,6 +1863,8 @@ int main(int ac, char** av)
 
 	configSettings->endGroup();
 	delete configSettings;
+	delete v;
+	delete configApp;
 
 	return 0;
 }
-- 
2.1.4