Open-source News

GhostRace Detailed - Speculative Race Conditions Affecting All Major CPUs / ISAs

Phoronix - Wed, 03/13/2024 - 03:00
VUSec and IBM Research Europe today announced Speculative Race Conditions (SRCs) as a as a new class of vulnerabilities where thread synchronization primitives using conditional branches can be microarchitecturally bypassed on speculative paths using a Spectre-V1 attack. The researchers have dubbed CVE-2024-2193 as GhostRace and is said to affect all major CPU vendors...

New Intel CPU Microcode & "RFDS" Linux Kernel Patch For New Security Vulnerabilities

Phoronix - Wed, 03/13/2024 - 01:50
Intel has released new CPU microcode for addressing five security issues and additionally there is newly-merged Linux kernel code for mitigating the new Register File Data Sampling "RFDS" micro-architectural vulnerability affecting Atom / E cores...

Ubuntu 24.04 LTS To Help Further Boost AMD EPYC 9004 Series Performance

Phoronix - Wed, 03/13/2024 - 00:22
With the upgraded Linux kernel, compiler, and other software upgrades with next month's Ubuntu 24.04 LTS, those using recent AMD EPYC server processors like the 4th Gen EPYC Genoa(X) / Bergamo / Siena processors stand to benefit from greater performance over the current Ubuntu 22.04 LTS release...

Linux 6.9 Lands Reworked Topology Code For Better Hybrid CPU Support

Phoronix - Tue, 03/12/2024 - 23:37
The recently covered overhaul of the x86 CPU topology code to clean-up quite a code mess has been merged for Linux 6.9. Among other benefits, this improved topology code properly accounts for modern Intel Core hybrid systems with a mix of P and HT-less E cores...

Many Networking Improvements & New Wired/Wireless Devices For Linux 6.9

Phoronix - Tue, 03/12/2024 - 21:00
The big set of networking subsystem updates have been sent in for the Linux 6.9 merge window including a number of new wired and wireless devices being supported as well as a number of core networking improvements and optimizations...

AdaptiveCpp 24.02 Released: "One Of The Best SYCL Compilers" For Performance

Phoronix - Tue, 03/12/2024 - 20:37
AdaptiveCpp 24.02 is out this week as the newest version of this SYCL compiler formerly known as hypSYCL and Open SYCL. AdaptiveCpp supports C++-based heterogeneous programming models targeting all major CPU and GPU vendors thanks to SYCL and C++ standard parallelism...

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