DragonFlyBSD Adds New "Ptr_Restrict" Security Option
Written by Michael Larabel in BSD on 14 February 2018 at 05:09 AM EST. Add A Comment
BSD --
Just like the Linux developers, in the wake of the Spectre and Meltdown CPU vulnerabilities DragonFlyBSD developers have also been working on a variety of security improvements.

DragonFlyBSD has already pushed Meltdown fixes and Spectre mitigation while their latest security work on this BSD operating system is a new security.ptr_restrict sysctl option.

When enabled, security.ptr_restrict is another small safeguard that aims to prevent leaking kernel addresses back to user-space. That's the jist of it outlined via this commit hitting the DragonFly tree today.

This new sysctl will be in the upcoming DragonFlyBSD 5.2 release.

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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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