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Intel User-Mode Instruction Prevention Support Revised For The Linux Kernel

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  • Intel User-Mode Instruction Prevention Support Revised For The Linux Kernel

    Phoronix: Intel User-Mode Instruction Prevention Support Revised For The Linux Kernel

    An Intel engineer over the weekend sent out the latest patches for implementing the company's User-Mode Instruction Prevention (UMIP) support within the Linux kernel...

    http://www.phoronix.com/scan.php?pag...Kernel-Revised

  • #2
    What is the use case for this?
    DRM?

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    • #3
      This whole thing made me remember this video, which I think is a must-watch for security-concerned people:

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      • #4
        Originally posted by uid313 View Post
        What is the use case for this?
        DRM?
        not DRM. These instructions are a bit of a weird legacy and have no real use in userspace (why would userspace care where internal kernel datastructures live), but leak information that could be used to bypass KASLR

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