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The latest word about Linux kernel development, from Linux.com and authoritative sources around the Internet.



Linux Gets Fix for Code-Execution Flaw that Went Unpatched Since 2009

Maintainers of the Linux kernel have patched one of the more serious security bugs to be disclosed in the open source operating system in recent months. The five-year-old code-execution hole leaves computers used in shared Web hosting services particularly vulnerable, so users and administrators should make sure systems are running updated versions that contain a fix. The memory-corruption vulnerability, which was introduced in version 2.6.31-rc3, released...

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Garrett: Oracle Continue to Circumvent EXPORT_SYMBOL_GPL()

Matthew Garrett takes Oracle to task for using shim functions to gain access to GPL-only kernel functions in its GPL-incompatible DTrace module. "Of course, as copyright holders of DTrace, Oracle could solve the problem by dual-licensing DTrace under the GPL as well as the CDDL. The fact that they haven't...

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AMD's Open-Source Hawaii GPU Support Still Isn't Working Right

While AMD's Radeon R9 290 "Hawaii" graphics cards have been out on the market for more than a half-year, the open-source driver support still isn't working quite right when it comes to having GPU hardware acceleration...

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Defeating Memory Comparison Timing Oracles (Red Hat Security Blog)

Over at the Red Hat Security Blog, Florian Weimer looks at timing oracles in memory comparison functions and how to stop them. Timing oracles can allow attackers to extract keys or other secret data by timing code that compares input data to the secret. "Of course, there are other architectures...

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Linux 3.15 SSD File-System Benchmarks

Now that kernel development activity is settling down for the Linux 3.15 kernel, here are some benchmarks of the EXT4, XFS, F2FS, and Btrfs file-systems compared to the stable Linux 3.14 kernel performance.

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