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Linux 4.4 & 4.9 Kernels Get Back-Ported SWAPGS Protection

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  • Linux 4.4 & 4.9 Kernels Get Back-Ported SWAPGS Protection

    Phoronix: Linux 4.4 & 4.9 Kernels Get Back-Ported SWAPGS Protection

    Greg Kroah-Hartman issued the Linux 4.4.189 and Linux 4.9.189 LTS kernels on Sunday morning that address the new Spectre V1 "SWAPGS" variant mitigations...

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

  • Joe Braga
    replied
    Originally posted by dungeon
    Blah that patch to exclude AMD seems does not work here




    Code:
    cat /sys/devices/system/cpu/vulnerabilities/spectre_v1
    Mitigation: usercopy/swapgs barriers and __user pointer sanitization
    This is on AMD with 4.19 kernel, so where that flag is? This looks like to me as shit is enabled Seems this does not correctly exclude AMD or whatever
    How this? Because AMD is not affected with SWAPGS

    Leave a comment:


  • aufkrawall
    replied
    Good thing we got all new cases covered, with mitigations=off. =)

    Leave a comment:

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