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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.
업데이트: 44분 21초 지남

Security updates for Friday

금, 2019/09/13 - 11:49오후
Security updates have been issued by Debian (curl, dnsmasq, and golang-go.crypto), Mageia (docker, firefox, flash-player-plugin, ghostscript, links, squid, sympa, tcpflow, thunderbird, and znc), openSUSE (srt), Oracle (.NET Core, kernel, libwmf, and poppler), Scientific Linux (firefox), SUSE (cri-o, curl, java-1_8_0-ibm, python-SQLAlchemy, and python-urllib3), and Ubuntu (curl and expat).
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[$] Comparing GCC and Clang security features

금, 2019/09/13 - 7:33오전
Hardening must be performed at all levels of a system, including in the compiler that is used to build that system. There are two viable compilers in the free-software community now, each of which offers a different set of security features. Kees Cook ran a session during the Toolchains microconference at the 2019 Linux Plumbers Conference that examined the security-feature support provided by both GCC and LLVM Clang, noting the places where each one could stand to improve.
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Security updates for Thursday

목, 2019/09/12 - 11:48오후
Security updates have been issued by Arch Linux (exim, firefox, and webkit2gtk), Debian (libonig and opensc), Fedora (cobbler), Oracle (firefox and kernel), Red Hat (flash-plugin, kernel, kernel-rt, rh-maven35-jackson-databind, rh-nginx110-nginx, and rh-nginx112-nginx), Scientific Linux (kernel), Slackware (curl, mozilla, and openssl), SUSE (ceph, libvirt, and python-Werkzeug), and Ubuntu (vlc and webkit2gtk).
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[$] LWN.net Weekly Edition for September 12, 2019

목, 2019/09/12 - 9:31오전
The LWN.net Weekly Edition for September 12, 2019 is available.
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[$] Topics from the Open Printing microconference

목, 2019/09/12 - 3:40오전
On day two of the 2019 Linux Plumbers Conference, two of the principals behind the Open Printing project led the very first Open Printing microconference. Project leader Till Kamppeter and program manager Aveek Basu described the current state of printing on Linux and some of the plans for the future, including supporting scanning for multi-function devices. The picture they painted was rosy, at least for printing, which may not quite match the experience of many Linux users. As with many projects, though, Open Printing is starved for contributors—something that was reflected in the sparse attendance at the microconference.
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[$] The USB debugging arsenal

목, 2019/09/12 - 1:31오전
At the 2019 Embedded Linux Conference North America, which was held in San Diego in August, Krzysztof Opasiak gave a presentation on demystifying the ways to monitor—and even change—USB traffic on a Linux system. He started with the basics of the USB protocol and worked up into software and hardware tools to observe, modify, and fuzz the messages that get sent. Those tools are part of the arsenal that is available to those interested in looking deeply into USB.
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[$] SGX and security modules

목, 2019/09/12 - 12:25오전
Software Guard Extensions (SGX) is a set of security-related instructions for Intel processors; it allows the creation of private regions of memory, called "enclaves". The aim of this feature is to work like an inverted sandbox: instead of protecting the system from malicious code, it protects an application from a compromised kernel hypervisor, or other application. Linux support for SGX has existed out-of-tree for years, and the effort of upstreaming it has reached an impressive version 22 of the patch set. During the upstreaming discussion, the kernel developers discovered that the proposed SGX API did not play nicely with existing security mechanisms, including Linux security modules (LSMs).
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Security updates for Wednesday

수, 2019/09/11 - 11:32오후
Security updates have been issued by Fedora (python38), openSUSE (nginx, nodejs10, nodejs8, python-Twisted, python-Werkzeug, SDL2_image, SDL_image, and util-linux and shadow), Oracle (firefox and nghttp2), Red Hat (.NET Core, firefox, kernel, libwmf, pki-deps:10.6, and poppler), Scientific Linux (firefox), SUSE (ghostscript, libgcrypt, podman, python-SQLAlchemy, qemu, and webkit2gtk3), and Ubuntu (curl, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, systemd, and tomcat8).
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CodeWeavers mourns Józef Kucia

수, 2019/09/11 - 12:26오전
The CodeWeavers blog carries the sad news that Józef Kucia died last month. "Józef first contributed to Wine in March of 2012, showing remarkable skill with Wine’s D3D technology. He became a key contributor to Wine, submitting over 2,500 patches. He also contributed to other open source projects including Mesa and Debian. Józef founded and led the vkd3d project and provided insight and guidance to the Vulkan working group. Józef joined CodeWeavers in 2015, and quickly became one of our most valued employees."
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A set of stable kernels

수, 2019/09/11 - 12:02오전
Stable kernels 5.2.14, 4.19.72, 4.14.143, 4.9.192, and 4.4.192 have been released. They all contain important fixes and users should upgrade.
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Security updates for Tuesday

화, 2019/09/10 - 11:50오후
Security updates have been issued by Debian (docker.io, icedtea-web, and trafficserver), openSUSE (opera), Red Hat (bind, firefox, go-toolset:rhel8, kernel, nghttp2, and polkit), SUSE (buildah, curl, java-1_7_1-ibm, and skopeo), and Ubuntu (freetype, memcached, python2.7, python3.4, and python2.7, python3.5, python3.6, python3.7).
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[$] 5.3 Kernel development cycle statistics

화, 2019/09/10 - 12:30오전
It's that time of the development cycle again: work on the 5.3 kernel is winding down with an expected final release date of September 15. Read on for LWN's traditional look at where the code in 5.3 came from in this relatively busy development cycle.
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Security updates for Monday

월, 2019/09/09 - 11:23오후
Security updates have been issued by Debian (expat, ghostscript, libreoffice, and memcached), Fedora (chromium, grafana, kea, nsd, pdfbox, roundcubemail, and SDL), Gentoo (apache, dbus, exim, libsdl2, pango, perl, vlc, and webkit-gtk), Mageia (dovecot, giflib, golang, icedtea-web, irssi, java-1.8.0-openjdk, libgcrypt, libmspack, mercurial, monit, php, poppler, python-urllib3, rdesktop, SDL12, sdl2, sigil, sqlite3, subversion, tomcat, and zstd), openSUSE (chromium, exim, go1.12, httpie, libmirage, python-SQLAlchemy, and srt), Oracle (firefox, ghostscript, and kernel), SUSE (apache2, mariadb, mariadb-connector-c, postgresql94, python-Django1, python-Pillow, python-urllib3, and qemu), and Ubuntu (exim4).
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Kernel prepatch 5.3-rc8

월, 2019/09/09 - 4:37오후
The eighth and presumably final 5.3 prepatch is out for testing. "So we probably didn't strictly need an rc8 this release, but with LPC and the KS conference travel this upcoming week it just makes everything easier."
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Critical vulnerability in Exim

금, 2019/09/06 - 11:29오후
Anybody running the Exim mail system will want to apply the updates that are being released today; there is a remote code-execution vulnerability in its TLS-handling code with a known proof-of-concept exploit. As the advisory says: "If your Exim server accepts TLS connections, it is vulnerable".
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Stable kernels for everybody

금, 2019/09/06 - 11:17오후
The 5.2.12, 4.19.70, 4.14.142, 4.9.191, and 4.4.191 stable kernels have been released with another set of important fixes. Milliseconds thereafter, 5.2.13 and 4.19.71 were released to fix a regression with the elantech mouse driver.
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[$] How Chrome OS works upstream

금, 2019/09/06 - 10:46오후
Google has a long and interesting history contributing to the upstream Linux kernel. With Chrome OS, Google has tried to learn from some of the mistakes of its past and is now working with the upstream Linux kernel as much as it can. In a session at the 2019 Open Source Summit North America , Google software engineer Doug Anderson detailed how and why Chrome OS developers work upstream. It is an effort intended to help the Linux community as well as Google.
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Security updates for Friday

금, 2019/09/06 - 10:26오후
Security updates have been issued by Debian (exim4 and firefox-esr), Fedora (lxc, lxcfs, pdfresurrect, python3-lxc, rdesktop, and seamonkey), Oracle (kernel), and SUSE (nginx, python-Werkzeug, SUSE Manager Client Tools, and util-linux and shadow).
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[$] What happens to kernel staging-tree code

금, 2019/09/06 - 12:42오전
The staging tree was added to the kernel in 2008 for the 2.6.28 development cycle as a way to ease the process of getting substandard device drivers into shape and merged into the mainline. It has been followed by controversy for just about as long. The recent disagreements over the EROFS and exFAT filesystems have reignited many of the arguments over whether the staging tree is beneficial to the kernel community or not. LWN cannot answer that question, but we can look into what has transpired in the staging tree in its first eleven years to see if there are any conclusions to be drawn there. A lot of code has gone into the staging tree over the years; what happened to it thereafter?
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Security updates for Thursday

목, 2019/09/05 - 11:42오후
Security updates have been issued by Debian (webkit2gtk), Fedora (systemd), openSUSE (go1.11, python-Twisted, SDL2_image, SDL_image, and wavpack), Oracle (kdelibs and kde-settings, kernel, and qemu-kvm), Red Hat (chromium-browser and firefox), Slackware (seamonkey), SUSE (java-1_8_0-ibm, kernel, and python-urllib3), and Ubuntu (firefox and npm/fstream).
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