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-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1660d1687db01852ec58bbf970e22868db367d53.1306851090.git.luto@mit.edu>
Date:	Tue, 31 May 2011 10:14:08 -0400
From:	Andy Lutomirski <luto@....EDU>
To:	Ingo Molnar <mingo@...e.hu>, x86@...nel.org
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	Jesper Juhl <jj@...osbits.net>, Borislav Petkov <bp@...en8.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Jan Beulich <JBeulich@...ell.com>,
	richard -rw- weinberger <richard.weinberger@...il.com>,
	Mikael Pettersson <mikpe@...uu.se>,
	Andi Kleen <andi@...stfloor.org>,
	Andy Lutomirski <luto@....edu>
Subject: [PATCH v4 10/10] x86-64: Add CONFIG_UNSAFE_VSYSCALLS to feature-removal-schedule

Signed-off-by: Andy Lutomirski <luto@....edu>
---
 Documentation/feature-removal-schedule.txt |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 1a9446b..94b4470 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -600,3 +600,12 @@ Why:	Superseded by the UVCIOC_CTRL_QUERY ioctl.
 Who:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
 
 ----------------------------
+
+What:	CONFIG_UNSAFE_VSYSCALLS (x86_64)
+When:	When glibc 2.14 or newer is ubitquitous.  Perhaps mid-2012.
+Why:	Having user-executable code at a fixed address is a security problem.
+	Turning off CONFIG_UNSAFE_VSYSCALLS mostly removes the risk but will
+	make the time() function slower on glibc versions 2.13 and below.
+Who:	Andy Lutomirski <luto@....edu>
+
+----------------------------
-- 
1.7.5.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ