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Linux Weekly News
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.
Frissült: 18 perc 10 másodperc
Getting live-patching capabilities into the mainline kernel has been a multi-year process. Basic patching support was merged for the 4.0 release, but further work has been stalled over disagreements on how the consistency model — the code ensuring that a patch is safe to apply to a running kernel — should work. The addition of kernel stack validation has addressed the biggest of the objections, so, arguably, it is time to move forward. At the 2016 Linux Plumbers Conference, developers working on live patching got together to discuss current challenges and future directions.
Click below (subscribers only) for the full report from LPC 2016.
Red Hat has updated policycoreutils (RHEL6,7: sandbox escape).
The 4.9-rc5 kernel prepatch is out. Linus says: "Things have definitely gotten smaller, so a normal release schedule (with rc7 being the last one) is still looking possible despite the large size of 4.9. But let's see how things work out over the next couple of weeks. In the meantime, there's a lot of normal fixes in here, and we just need more testing."
Over at Linux Journal, Susan Sons has a lengthy article on security exercises, which are a way to test the readiness of a project or organization for some kind of security problem. "Scheduling exercises at a predictable time and reminding others when it will happen prevents confusion among staff. It is wise to begin with low-impact exercises (more on this below) that don't leverage production systems, and move on to higher-potential-impact exercises only when the organization's infrastructure and personnel have had most of the bugs shaken out. If something as small as a runaway process on a single server can seriously impact your business, it's better to find out at a planned time with all hands on deck than at 4am on a holiday when no one who knows what to do can be reached. The whole point of security exercises is to increase resilience: raise the threshold of what is normal for your team to deal with, what your systems can shrug off." She followed that article up with some example security exercises.
Debian has updated pillow (two vulnerabilities).
Mageia has updated freeimage (two vulnerabilities, one from 2015).
openSUSE has updated curl (42.1: multiple vulnerabilities), flash-player (13.2: multiple vulnerabilities), gd (42.1: three vulnerabilities), ImageMagick (42.1: multiple vulnerabilities, some from 2014 and 2015), and mysql-community-server (42.1, 13.2: multiple vulnerabilities, many unspecified).
Oracle has updated 389-ds-base (OL7: unspecified), bind (OL7: denial of service), curl (OL7: TLS botch), dhcp (OL7: unspecified), firewalld (OL7: authentication bypass), fontconfig (OL7: privilege escalation), gimp (OL7: code execution), glibc (OL7: code execution), java-1.7.0-openjdk (OL7: unspecified), kernel (OL7: multiple vulnerabilities, some from 2013 and 2015), krb5 (OL7: two vulnerabilities), libgcrypt (OL7: bad random numbers), libguestfs (OL7: information leak from 2015), libreoffice (OL7: code execution), libreswan (OL7: denial of service), libvirt (OL7: three vulnerabilities, two from 2015), mariadb (OL7: privilege escalation), mod_nss (OL7: cipher choosing botch), nettle (OL7: multiple vulnerabilities, three from 2015), NetworkManager (OL7: information leak), ntp (OL7: multiple vulnerabilities from 2015), openssh (OL7: privilege escalation from 2015), php (OL7: multiple vulnerabilities), poppler (OL7: code execution from 2015), postgresql (OL7: two vulnerabilities), python (OL7: code execution), qemu-kvm (OL7: two vulnerabilities), resteasy-base (OL7: code execution), squid (OL7: multiple vulnerabilities), sudo (OL7: information disclosure), systemd (OL7: denial of service), tomcat (OL7: multiple vulnerabilities, three from 2015), util-linux (OL7: denial of service), and wget (OL7: code execution).
Ubuntu has updated kernel (16.10; 16.04: denial of service), kernel (14.04: multiple vulnerabilities, one from 2014 and 2015), kernel (12.04: two vulnerabilities), linux-lts-trusty (12.04: multiple vulnerabilities, one from 2014 and 2015), linux-lts-xenial (14.04: denial of service), linux-raspi2 (16.10: denial of service), linux-snapdragon (16.04: denial of service), and linux-ti-omap4 (12.04: two vulnerabilities).
Christian Schaller writes that, after all these years, a stock Fedora system will be able to play MP3 files. "I know this has been a big wishlist item for a long time for a lot of people so I am really happy that we are finally in a position to fulfill that wish. You should be able to download the mp3 plugin on day 1 through GNOME Software or through the missing codec installer in various GStreamer applications. For Fedora Workstation 26 I would not be surprised if we decide to ship it on the install media."
The 4.8.7 and 4.4.31 stable kernels have been released. As usual, they contain multiple important fixes; users of 4.8.x and 4.4.x should upgrade.
Fedora has updated chromium (F24: multiple vulnerabilities), chromium-native_client (F24: multiple vulnerabilities), dracut (F24: information disclosure), jasper (F24: multiple vulnerabilities), and xen (F24: multiple vulnerabilities).
SUSE has updated php5 (SLE12: three vulnerabilities).
Ubuntu has updated qemu, qemu-kvm (multiple vulnerabilities).
The LWN.net Weekly Edition for November 10, 2016 is available.
Neil Brown writes: "For a little longer than a year now, I have been using Notmuch as my primary means of reading email. Though the experience has not been without some annoyances, I feel that it has been a net improvement and expect to keep using Notmuch for quite some time." Click below (subscribers only) for his full report.
Debian has updated libxslt (code execution).
Red Hat has updated flash-plugin (RHEL5,6: multiple vulnerabilities).
Dave Täht has been working to save the Internet for the last six years (at least). Recently, his focus has been on improving the performance of networking over WiFi — performance that has been disappointing for as long as anybody can remember. The good news, as related in his 2016 Linux Plumbers Conference talk, is that WiFi can be fixed, and the fixes aren't even all that hard to do. Users with the right hardware and a willingness to run experimental software can have fast WiFi now, and it should be available for the rest of us before too long.
The digiKam Software Collection 5.3.0 has been released. This version is available as an AppImage bundle. "AppImage is an open-source project dedicated to provide a simple way to distribute portable software as compressed binary file, that standard user can run as well, without to install special dependencies. All is included into the bundle, as last Qt5 and KF5 frameworks. AppImage use Fuse file-system, which is de-compressed into a temporary directory to start the application. You don't need to install digiKam on your system to be able to use it. Better, you can use the official digiKam from your Linux distribution in parallel, and test the new version without any conflict with one used in production. This permit to quickly test a new release without to wait an official package dedicated for your Linux box. Another AppImage advantage is to be able to provide quickly a pre-release bundle to test last patches applied to source code, outside the releases plan."
The second service pack for SUSE Linux Enterprise Server, Desktop and other products, has been released. Highlights include software defined networking and network function virtualization, the new SUSE Package Hub for package updates, the ability to skip service pack releases (e.g. upgrade from SLES 12 to SLES 12-SP2), architecture support for AArch64 and Raspberry Pi, and much more.
Debian-LTS has updated python-imaging (two vulnerabilities).
Fedora has updated ansible (F24: two vulnerabilities), ghostscript (F24: two vulnerabilities), icu (F24: code execution), java-1.8.0-openjdk-aarch32 (F24: multiple vulnerabilities), and kernel (F24: two vulnerabilities).
Red Hat has updated chromium-browser (RHEL6: memory leak), libgcrypt (RHEL6,7: flawed random number generation), pacemaker (RHEL6: privilege escalation), and qemu-kvm-rhev (RHOSP8; RHOSP9: denial of service).
Scientific Linux has updated java-1.7.0-openjdk (SL5,6: multiple vulnerabilities).
HackerBoards takes a look at the 64-bit Orange Pi. "Shenzhen Xunlong is keeping up its prolific pace in spinning off new Allwinner SoCs into open source SBCs, and now it has released its first 64-bit ARM model, and one of the cheapest quad-core -A53 boards around. The Orange Pi PC 2 runs Linux or Android on a new Allwinner H5 SoC featuring four Cortex-A53 cores and a more powerful Mali-450 GPU."
Debian has updated mysql-5.5 (multiple unspecified vulnerabilities).
Debian-LTS has updated libdatetime-timezone-perl (update tzdata), libxslt (code execution), memcached (multiple vulnerabilities, one from 2013), openjdk-7 (multiple vulnerabilities), and tzdata (update tzdata).
openSUSE has updated chromium (SPH for SLE12; Leap42.1, 13.2: memory leak), dbus-1 (13.1: denial of service), jasper (13.1: multiple vulnerabilities), libraw (Leap42.1: memory leak), libxml2 (13.2: code execution), and firefox (13.1: two vulnerabilities).
The 4.9-rc4 kernel prepatch is out for testing. Linus says: "So I'm not going to lie: this is not a small rc, and I'd have been happier if it was. But it's not unreasonably large for this (big) release either, so it's not like I'd start worrying. I'm currently still assuming that we'll end up with the usual seven release candidates, assuming things start calming down. We'll see how that goes as we get closer to a release."
Opensource.com celebrates 25 years of Vim. "Vim is a flexible, extensible text editor with a powerful plugin system, rock-solid integration with many development tools, and support for hundreds of programming languages and file formats. Twenty-five years after its creation, Bram Moolenaar still leads development and maintenance of the project—a feat in itself! Vim had been chugging along in maintenance mode for more than a decade, but in September 2016 version 8.0 was released, adding new features to the editor of use to modern programmers."
ZDNet takes a look at the VoCore2, a coin-sized computer. "VoCore2 is an open source Linux computer and a fully-functional wireless router that is smaller than a coin. It can also act as a VPN gateway for a network, an AirPlay station to play lossless music, a private cloud to store your photos, video, and code, and much more. The Lite version of the VoCore2 features a 580MHz MT7688AN MediaTek system on chip (SoC), 64MB of DDR2 RAM, 8MB of NOR storage, and a single antenna slot for Wi-Fi that supports 150Mbps."
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