L1TF/Foreshadow News and Benchmarks
-
Three More Intel Chip Exploits Surface
-
Spectre-like “Foreshadow” Flaw In Intel CPUs Can Leak Your Secrets
-
QEMU 3.0 Brings Spectre V4 Mitigation, OpenGL ES Support In SDL Front-End
QEMU 3.0 is now officially available. This big version bump isn't due to some compatibility-breaking changes, but rather to simplify their versioning and begin doing major version bumps on an annual basis. As an added bonus, QEMU 3.0 comes at a time of the project marking its 15th year in existence.
QEMU 3.0 does amount to being a big feature release with a lot of new functionality as well as many improvements. Changes in QEMU 3.0 include Spectre V4 mitigation for x86 Intel/AMD, improved support for nested KVM guests on Microsoft Hyper-V, block device support for active mirroring, improved support for AHCI and SCSI emulation, OpenGL ES support within the SDL front-end, improved latency for user-mode networking, various ARM improvements, some POWER9 / RISC-V / s390 improvements too, and various other new bits.
-
How the L1 Terminal Fault vulnerability affects Linux systems
Announced just yesterday in security advisories from Intel, Microsoft and Red Hat, a newly discovered vulnerability affecting Intel processors (and, thus, Linux) called L1TF or “L1 Terminal Fault” is grabbing the attention of Linux users and admins. Exactly what is this vulnerability and who should be worrying about it?
-
An Early Look At The L1 Terminal Fault "L1TF" Performance Impact On Virtual Machines
Yesterday the latest speculative execution vulnerability was disclosed that was akin to Meltdown and is dubbed the L1 Terminal Fault, or "L1TF" for short. Here are some very early benchmarks of the performance impact of the L1TF mitigation on the Linux virtual machine performance when testing the various levels of mitigation as well as the unpatched system performance prior to this vulnerability coming to light.
-
Phoronix Test Suite 8.2 M2 Released With Offline Improvements, L1TF/Foreshadow Reporting
The second development snapshot of the upcoming Phoronix Test Suite 8.2-Rakkestad to benchmark to your heart's delight on Linux, macOS, Windows, Solaris, and BSD platforms from embedded/SBC systems to cloud and servers.
-
The Linux Benchmarking Continues On The Threadripper 2950X & 2990WX
While I haven't posted any new Threadripper 2950X/2990WX benchmarks since the embargo expired on Monday with the Threadripper 2 Linux review and some Windows 10 vs. Linux benchmarks, tests have continued under Linux -- as well as FreeBSD.
I should have my initial BSD vs. Linux findings on Threadripper 2 out later today. There were about 24 hours worth of FreeBSD-based 2990WX tests going well albeit DragonFlyBSD currently bites the gun with my Threadripper 2 test platforms. More on that in the upcoming article as the rest of those tests finish. It's also been a madhouse with simultaneously benchmarking the new Level 1 Terminal Fault (L1TF) vulnerability and the performance impact of those Linux mitigations on Intel hardware will start to be published in the next few hours.
- Login or register to post comments
- Printer-friendly version
- 4227 reads
- PDF version
More in Tux Machines
- Highlights
- Front Page
- Latest Headlines
- Archive
- Recent comments
- All-Time Popular Stories
- Hot Topics
- New Members
digiKam 7.7.0 is releasedAfter three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. |
Dilution and Misuse of the "Linux" Brand
|
Samsung, Red Hat to Work on Linux Drivers for Future TechThe metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. |
today's howtos
|
Flaw discovered in Intel chips
Flaw discovered in Intel chips, allows attackers to steal cloud data [Ed: Intel deserves to go bankrupt for selling billions of chips with defects and back doors in them (no accident, they put the ME there consciously)]
OpenBSD chief slams Intel , says more CPU flaws likely to be found
New family of new speculative execution bugs, Foreshadow, adds to Spectre-Meltdown misery
And yet more
Intel Foreshadow exploits: How to protect yourself from latest chip vulnerability
L1TF Explained in 3 Minutes from Red Hat
Linux Kernel TCP Vulnerability 2
Two Linux bugs let remote attackers knock out network devices with low-traffic attacks
Security updates issued for VMware, Samba, Internet Key Exchange, and Linux
Microsoft, Intel Warn of 'Foreshadow' CPU Security Attacks [Ed: A Microsoft booster's take]
Intel Issues Security Advisory on L1 Speculative Execution Attack Method [Ed: Also a Microsoft booster's take]
Protecting Our Customers through the Lifecycle of Security Threats [Ed: Intel's face-saving take]