Linux 4.17 Gets More Spectre V1 Fixes
Written by Michael Larabel in Linux Kernel on 13 May 2018 at 09:34 AM EDT. 1 Comment
LINUX KERNEL --
Thomas Gleixner this morning sent in the latest batch of x86/pti updates for containing the latest mitigation improvements around Meltdown and Spectre CPU vulnerabilities.

This latest pull request has several fixes, including a possible deadlock fix. There have also been a number of Spectre Variant One access restrictions.

Similar to the recent Spectre V1 fixes for the Linux sound drivers, these latest array indexing fixes for kernel code was uncovered via Smatch. The Smatch static analysis tool designed for analyzing the Linux kernel code recently picked up support for spotting potential Spectre vulnerabilities dealing with possible bounds check bypass. The latest Smatch code for those interested can be found here.

The list of updates/fixes for the Linux 4.17 kernel can be found via this pull request.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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