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LWN.net is a comprehensive source of news and opinions from and about the Linux community. This is the main LWN.net feed, listing all articles which are posted to the site front page.
Updated: 2 hours 27 min ago

[$] The future of the realtime patch set

10 hours 7 min ago

In a followup to last year's report on the future of realtime Linux, Thomas Gleixner once again summarized the status of the long-running patch set. The intervening year did not result in the industry stepping up to fund further work, which led Gleixner to declare that realtime Linux is now just his hobby. That means new releases will be done as his time allows and may eventually lead to dropping the patch set altogether if the widening gap between mainline and realtime grows too large.

Subscribers can click below for the full report of Gleixner's talk at this year's Linux Plumbers Conference.

Tuesday's security updates

12 hours 18 min ago

Debian has updated mysql-5.5 (multiple vulnerabilities).

Mandriva has updated bugzilla (multiple vulnerabilities), kernel (multiple vulnerabilities), mediawiki (cross-site scripting), perl (denial of service), python (buffer overflow), and rsyslog (two vulnerabilities).

Oracle has updated qemu-kvm (OL7: information leak) and rsyslog5 (OL5: denial of service).

Red Hat has updated qemu-kvm (RHEL7: information leak) and rsyslog (RHEL5,6: denial of service).

Scientific Linux has updated qemu-kvm (SL7: information leak).

Slackware has updated openssh (SSHFP-checking disabled).

Emacs 24.4 released

15 hours 59 min ago
Version 24.4 of the Emacs editor is out. New features this time around include a built-in web browser (unfortunately named "eww"), better multi-monitor support, the ability to save and restore the state of frames and windows, digital signatures on Emacs Lisp packages, access control list support, and much more. See the NEWS file for all the details.

Debian Project mourns the loss of Peter Miller

Tuesday 21st of October 2014 12:20:56 AM
The Debian Project recently learned that community member Peter Miller died last July. "Peter was a relative newcomer to the Debian project, but his contributions to Free and Open Source Software goes back the the late 1980s. Peter was significant contributor to GNU gettext as well as being the main upstream author and maintainer of other projects that ship as part of Debian, including, but not limited to srecord, aegis and cook. Peter was also the author of the paper "Recursive Make Considered Harmful"."

Shuttleworth: V is for Vivid

Tuesday 21st of October 2014 12:16:07 AM
Ubuntu 14.10 "Utopic Unicorn" is due to be released this week. That marks 10 years of Ubuntu releases, beginning with Ubuntu 4.10 "Warty Warthog". In this article Mark Shuttleworth announces the name of what will the 15.04 release. "This verbose tract is a venial vanity, a chance to vector verbal vibes, a map of verdant hills to be climbed in months ahead. Amongst those peaks I expect we’ll find new ways to bring secure, free and fabulous opportunities for both developers and users. This is a time when every electronic thing can be an Internet thing, and that’s a chance for us to bring our platform, with its security and its long term support, to a vast and important field. In a world where almost any device can be smart, and also subverted, our shared efforts to make trusted and trustworthy systems might find fertile ground. So our goal this next cycle is to show the way past a simple Internet of things, to a world of Internet things-you-can-trust."

The FSF opens nominations for the 17th annual Free Software Awards

Monday 20th of October 2014 05:50:32 PM
The Free Software Foundation (FSF) and the GNU Project have announced the opening of nominations for the 17th annual Free Software Awards. The Free Software Awards include the Award for the Advancement of Free Software and the Award for Projects of Social Benefit. "In the case of both awards, previous winners are not eligible for nomination, but renomination of other previous nominees is encouraged. Only individuals are eligible for nomination for the Advancement of Free Software Award (not projects), and only projects can be nominated for the Social Benefit Award (not individuals). For a list of previous winners, please visit https://www.fsf.org/awards."

Security advisories for Monday

Monday 20th of October 2014 04:47:09 PM

Debian has updated iceweasel (multiple vulnerabilities).

Fedora has updated glibc (F19: multiple vulnerabilities), gnome-shell (F20: lock screen bypass), kernel (F19: multiple vulnerabilities), libxml2 (F20: denial of service), openssl (F20; F19: multiple vulnerabilities), openstack-glance (F20: denial of service), and torque (F20; F19: authentication bypass).

openSUSE has updated bash (13.1; 12.3: multiple vulnerabilities).

Oracle has updated libxml2 (OL6: denial of service).

Kernel prepatch 3.18-rc1

Monday 20th of October 2014 11:58:09 AM
In a relatively predictable move, Linus has released 3.18-rc1 and closed the 3.18 merge window sooner than expected. He has, however, said that he will be more than usually open to post-rc1 pull requests from people who "grovel a bit." "There is also at least one pull request that I am hoping to get asap and planning on still pulling, ie I'm very much still hoping to get overlayfs finally merged." In the end, 9,711 non-merge changesets found their way into the mainline repository during this merge window.

Interview: Thomas Voß of Mir (Linux Voice)

Friday 17th of October 2014 06:37:30 PM

Linux Voice has an interview with Canonical's Thomas Voß, the technical architect of the Mir display server. The interview deals largely with background topics, such as the Mir team's decision to standardize on an API rather than define a protocol, and the various languages to support. "Obviously there are disadvantages to having only one graphics language, but the benefits outweigh the disadvantages. And I think that’s a common theme in the industry. Android made the same decision to go that way. Even Wayland to a certain degree has been doing that. They have to support EGL and GL, simply because it’s very convenient for app developers and toolkit developers – an open graphics language. That was the part that inspired us, and we wanted to have this one graphics language and support it well."

Friday's security updates

Friday 17th of October 2014 04:09:02 PM

CentOS has updated openssl (C5: protocol downgrade) and openssl (C6, C7: multiple vulnerabilities).

Debian has updated openssl (multiple vulnerabilities).

Fedora has updated firefox (F20: multiple vulnerabilities), java-1.7.0-openjdk (F20: multiple vulnerabilities), java-1.8.0-openjdk (F20: multiple vulnerabilities), kernel (F20: multiple vulnerabilities), php-ZendFramework (F19; F20: multiple vulnerabilities), and thunderbird (F20: multiple vulnerabilities).

Oracle has updated cups (O6: multiple vulnerabilities), file (O6: multiple vulnerabilities), firefox (O5; O6: multiple vulnerabilities), glibc (O6: multiple vulnerabilities), java-1.6.0-openjdk (O6: multiple vulnerabilities), java-1.7.0-openjdk (O6: multiple vulnerabilities), krb5 (O6: multiple vulnerabilities), libxml2 (O7: denial of service), openssh (O6: multiple vulnerabilities), openssl (O5; O6; O7: multiple vulnerabilities), thunderbird (O6: multiple vulnerabilities), and trousers (O6: denial of service).

Red Hat has updated java-1.6.0-sun (multiple vulnerabilities), java-1.7.0-oracle (multiple vulnerabilities), libxml2 (RHEL6,7: denial of service), openssl (RHEL5: protocol downgrade), openssl (RHEL6,7: multiple vulnerabilities), and rsyslog7 (RHEL6: denial of service).

Scientific Linux has updated openssl (SL5: protocol downgrade) and openssl (SL6,7:multiple vulnerabilities ).

Ubuntu has updated openjdk-6 (10.04, 12.04: multiple vulnerabilities) and openssl (multiple vulnerabilities).

The Debian init system general resolution returns

Friday 17th of October 2014 05:34:41 AM
Ian Jackson has resurrected the general resolution prohibiting Debian packages from depending on a single init system. This resolution failed to obtain enough seconds to proceed to a vote back in March, but this time more seconds have appeared and a vote will take place after the two-week discussion period. The initial discussion suggests that there is some support for the idea, but that not everybody appreciates seeing this resolution just before the jessie release is supposed to go into a freeze.

Docker 1.3 released

Thursday 16th of October 2014 09:47:54 PM
The 1.3 release of the Docker container system is available. "First up, in this release, the Docker Engine will now automatically verify the provenance and integrity of all Official Repos using digital signatures. Official Repos are Docker images curated and optimized by the Docker community to be the best building blocks for assembling distributed applications. A valid signature provides an added level of trust by indicating that the Official Repo image has not been tampered with."

GCC Undefined Behavior Sanitizer – ubsan (RH Developer Blog)

Thursday 16th of October 2014 09:45:39 PM
The Red Hat Developer Blog has an article about the undefined behavior sanitizer that was a part of the GCC 4.9 release. "One of the most important [checks] is the signed integer overflow checking. The practice shows that this undefined behavior is very common in real programs. Ubsan is able to check that the result of addition, subtraction, multiplication and negation does not overflow in signed arithmetic."

Tor Browser 4.0 released

Thursday 16th of October 2014 09:41:19 PM
Version 4.0 of the Tor Browser is now available. "The primary user-facing change since the 3.6 series is the transition to Firefox 31-ESR. More importantly for censored users who were using 3.6, the 4.0 series also features the addition of three versions of the meek pluggable transport. In fact, we believe that both meek-amazon and meek-azure will work in China today, without the need to obtain bridge addresses."

Thursday's security updates

Thursday 16th of October 2014 03:11:08 PM

CentOS has updated thunderbird (C5: multiple vulnerabilities).

Debian has updated drupal7 (SQL injection) and wpa (code execution).

Fedora has updated php-ZendFramework2 (F21: multiple vulnerabilities) and rsyslog (F20; F21: denial of service).

Oracle has updated firefox (O7: multiple vulnerabilities), java-1.6.0-openjdk (O5: multiple vulnerabilities), and java-1.7.0-openjdk (O5; O7: multiple vulnerabilities).

Red Hat has updated flash-plugin (RHEL5, RHEL6: multiple vulnerabilities) and thunderbird (RHEL5, RHEL6: multiple vulnerabilities).

Slackware has updated openssl (multiple vulnerabilities).

Ubuntu has updated mysql-5.5 (12.04, 14.04: multiple vulnerabilities).

[$] LWN.net Weekly Edition for October 16, 2014

Wednesday 15th of October 2014 11:46:49 PM
The LWN.net Weekly Edition for October 16, 2014 is available.

[$] A damp discussion of network queuing

Wednesday 15th of October 2014 09:01:24 PM
Very few presenters at technical conferences come equipped with gallons of water and a small inflatable swimming pool to contain it. But that is just how Stephen Hemminger showed up at the 2014 Linux Plumbers Conference. Stephen was there to talk about the current state of the fight against bufferbloat; while there was some good news to share, the sad fact is that, in a number of areas, we are still all wet.

Stable kernel updates

Wednesday 15th of October 2014 04:14:44 PM
Greg Kroah-Hartman has released four kernel updates: 3.17.1, 3.16.6, 3.14.22, and 3.10.58. All contain the usual set of important fixes.

Security advisories for Wednesday

Wednesday 15th of October 2014 04:07:55 PM

CentOS has updated firefox (C7; C5: multiple vulnerabilities), java-1.6.0-openjdk (C7; C5: multiple vulnerabilities), and java-1.7.0-openjdk (C7; C5: multiple vulnerabilities).

Debian has updated wireshark (yet another pile of dissector flaws).

openSUSE has updated rsyslog (13.1; 12.3: two vulnerabilities).

Oracle has updated java-1.6.0-openjdk (OL7: multiple vulnerabilities).

Red Hat has updated firefox (RHEL5,6,7: multiple vulnerabilities), java-1.6.0-openjdk (RHEL5,6,7: multiple vulnerabilities), java-1.7.0-openjdk (RHEL6,7; RHEL5: multiple vulnerabilities), and java-1.8.0-openjdk (RHEL6: multiple vulnerabilities).

SUSE has updated rsyslog (SLES11 SP3: two vulnerabilities).

Ubuntu has updated firefox (14.04, 12.04: multiple vulnerabilities), thunderbird (14.04, 12.04: multiple vulnerabilities), and wpa, wpasupplicant (14.04, 12.04, 10.04: command execution).

The POODLE vulnerability

Wednesday 15th of October 2014 03:05:34 PM
Google has disclosed a new SSL vulnerability that goes by the name POODLE. In essence: a man-in-the-middle attacker can force a connection to drop back to the obsolete SSL 3.0 protocol, then recover plaintext data. "Disabling SSL 3.0 support, or CBC-mode ciphers with SSL 3.0, is sufficient to mitigate this issue, but presents significant compatibility problems, even today. Therefore our recommended response is to support TLS_FALLBACK_SCSV. This is a mechanism that solves the problems caused by retrying failed connections and thus prevents attackers from inducing browsers to use SSL 3.0. It also prevents downgrades from TLS 1.2 to 1.1 or 1.0 and so may help prevent future attacks." The OpenSSL project has issued an advisory describing its response to a few vulnerabilities, POODLE included.

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