Linux Weekly News

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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.
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[$] LWN.net Weekly Edition for June 8, 2017

cs, 2017-06-08 03:27
The LWN.net Weekly Edition for June 8, 2017 is available.
Kategóriák: Linux

[$] Language summit lightning talks

cs, 2017-06-08 00:34

Over the course of the day, the 2017 Python Language Summit hosted a handful of lightning talks, several of which were worked into the dynamic schedule when an opportunity presented itself. They ranged from the traditional "less than five minutes" format to some that strayed well outside of that time frame—some generated a fair amount of discussion as well. Topics were all over the map: board elections, beta releases, Python as a security vulnerability, Jython, and more.

Kategóriák: Linux

[$] Status of mypy and type checking

cs, 2017-06-08 00:03

In his 2017 Python Language Summit session, Jukka Lehtosalo updated attendees on the status of type checking for the language, in general, and for the mypy static type checker. There are new features in the typing module and in mypy, as well as work in progress and planned features for both. For a feature, type hints, that is really only around three years old, there has been a lot of progress made—but, of course, there is still more to come.

Kategóriák: Linux

[$] Guarding personally identifiable information

sze, 2017-06-07 23:17

There is no viable way to prevent data from being collected about us in the current age of computing. But if institutions insist on knowing our financial status, purchasing habits, health information, political preferences, and so on, they have a responsibility to keep this data—known as personally identifiable information (PII)—from leaking to unauthorized recipients. At the 2017 Strata data conference in London, Steve Touw presented a session on privacy-enhancing technologies. In a fast-paced 40 minutes he covered the EU regulations about privacy, the most popular technical measures used to protect PII, and some pointed opinions about what works and what should be thrown into the dustbin.

Kategóriák: Linux

Tor Browser 7.0 released

sze, 2017-06-07 20:26
The Tor Browser Team has announced the first stable release in the 7.0 series. "This release brings us up to date with Firefox 52 ESR which contains progress in a number of areas: Most notably we hope having Mozilla's multiprocess mode (e10s) and content sandbox enabled will be one of the major new features in the Tor Browser 7.0 series, both security- and performance-wise. While we are still working on the sandboxing part for Windows (the e10s part is ready), both Linux and macOS have e10s and content sandboxing enabled by default in Tor Browser 7.0. In addition to that, Linux and macOS users have the option to further harden their Tor Browser setup by using only Unix Domain sockets for communication with tor."
Kategóriák: Linux

A set of stable kernels

sze, 2017-06-07 18:30
Greg Kroah-Hartman has released stable kernels 4.11.4, 4.9.31, 4.4.71, and 3.18.56. All of them contain important fixes and users should upgrade.
Kategóriák: Linux

Security updates for Wednesday

sze, 2017-06-07 18:06
Security updates have been issued by Arch Linux (chromium), Debian (apng2gif and ming), Gentoo (freetype, libpcre, minicom, pidgin, webkit-gtk, and wireshark), openSUSE (deluge and postgresql93), and Ubuntu (libnl3, lintian, linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon, linux, linux-raspi2, linux-hwe, and linux-lts-xenial).
Kategóriák: Linux

[$] Classes and types in the Python typing module

sze, 2017-06-07 15:30

Mark Shannon is concerned that the Python core developers may be replaying a mistake: treating two distinct things as being the same. Treating byte strings and Unicode text-strings interchangeably is part of what led to Python 3, so he would rather not see that happen again with types and classes. The Python typing module, which is meant to support type hints, currently implements types as classes. That leads to several kinds of problems, as Shannon described in his session at the 2017 Python Language Summit.

Kategóriák: Linux

GnuPG funding campaign

k, 2017-06-06 20:31
The GnuPG Project has announced the launch of a funding campaign to further support and improve its mail and data encryption software, GnuPG. "The 6 person development team is currently financed from a successful campaign in early 2015, regular donations from the Linux Foundation, Stripe, Facebook, and a few paid development projects. To ensure long-term stability the new campaign focuses on recurring donations and not one-time donations."
Kategóriák: Linux

FSF: Judge won't dismiss alleged GPL violation: Why this matters

k, 2017-06-06 20:24
Last month LWN pointed to an article about the Artifex v. Hancom case, in which Hancom used Artifex's Ghostscript in its office product. The Free Software Foundation looks at the case and the recent ruling. "On the latter, the judge found that the business model of Artifex indicated a loss of revenue, but also noted that harm could be found even where money isn't involved. The judge, quoting a prior case, noted that there are 'substantial benefits, including economic benefits, to the creation and distribution of copyrighted works under public licenses that range far beyond traditional license royalties.' While not [dispositive], this last note is particularly interesting for many free software developers, who generally share their work at no cost."
Kategóriák: Linux

[$] Waiting for entropy

k, 2017-06-06 18:04
Many bytes have been expended over the years discussing the virtues of the kernel's random number generation subsystem. One of the biggest recurring concerns has to do with systems that are unable to obtain sufficient entropy during the boot process to meet early demands for random data. The latest discussion on this topic got off to a bit of a rough start, but it may lead to an incremental improvement in this area.
Kategóriák: Linux

Gentoo dropping support of SPARC

k, 2017-06-06 18:03
The Gentoo security team has announced that the SPARC architecture will no longer be supported by the security team. "This decision follows the council decision on 2016-12-11, 'The council defers to the security team, but is supportive of dropping security support for sparc if it is unable to generally meet the security team timelines.'"
Kategóriák: Linux

Security updates for Tuesday

k, 2017-06-06 17:53
Security updates have been issued by Arch Linux (tomcat7 and tomcat8), Debian (freeradius, perl, and yodl), Fedora (libtasn1 and poppler), Gentoo (dbus, filezilla, git, imageworsener, munge, mupdf, qemu, rpcbind, and shadow), and Ubuntu (libtasn1-6 and puppet).
Kategóriák: Linux

[$] Range reader/writer locks for the kernel

h, 2017-06-05 22:30
The kernel uses a variety of lock types internally, but they all share one feature in common: they are a simple either/or proposition. When a lock is obtained for a resource, the entire resource is locked, even if exclusive access is only needed to a part of that resource. Many resources managed by the kernel are complex entities for which it may make sense to only lock a smaller part; files (consisting of a range of bytes) or a process's address space are examples of this type of resource. For years, kernel developers have talked about adding "range locks" — locks that would only apply to a portion of a given resource — as a way of increasing concurrency. Work has progressed in that area, and range locks may soon be added to the kernel's locking toolkit.
Kategóriák: Linux

Rivendell v2.16.0

h, 2017-06-05 18:16
Rivendell 2.16.0 has been released. Rivendell is a radio automation system targeted for use in professional broadcast environments. This version includes audio store hashing, kernel GPIO, Modbus TCP support, and more.
Kategóriák: Linux

Security updates for Monday

h, 2017-06-05 17:20
Security updates have been issued by Arch Linux (gajim and libusbmuxd), Debian (perl), Fedora (chromium, chromium-native_client, dropbear, squirrelmail, sudo, and wget), Mageia (git, menu-cache, and pcmanfm), and openSUSE (libupnp).
Kategóriák: Linux

GDB 8.0 released

h, 2017-06-05 16:23
Version 8.0 of the GDB debugger is out. Changes in this release include some Python scripting enhancements, DWARF version 5 support, some new targets, and more.
Kategóriák: Linux

Kernel prepatch 4.12-rc4

h, 2017-06-05 03:10
The 4.12-rc4 kernel prepatch has been released. "Things remain fairly calm for 4.12, although not quite as calm as it appeared earlier in the week. I think two thirds of the commits came in on Friday or the weekend. But timing aside, it all looks fairly normal."
Kategóriák: Linux

[$] Improved block-layer error handling

p, 2017-06-02 19:11
The kernel's filesystem and block layers are places where a lot of things can go wrong, often with unpleasant consequences. To make things worse, when things do go wrong, informing user space about the problem can be difficult as a consequence of how block I/O works. That can result in user-space applications being unaware of trouble at the I/O level, leading to lost data and enraged users. There are now two separate (and complementary) proposals under discussion that aim to improve how error reporting is handled in the block layer.
Kategóriák: Linux

Security updates for Friday

p, 2017-06-02 17:20
Security updates have been issued by Arch Linux (freeradius and libtasn1), Debian (nss, openldap, picocom, strongswan, wordpress, and zookeeper), Mageia (openvpn), openSUSE (mariadb), Oracle (kernel and sudo), and SUSE (strongswan).
Kategóriák: Linux