Comment 3 for bug 1830487

Reviewed: https://review.opendev.org/663094
Committed: https://git.openstack.org/cgit/starlingx/integ/commit/?id=d4aebcaf913d3e53b45cac830c7cfca0b2871bd8
Submitter: Zuul
Branch: master

commit d4aebcaf913d3e53b45cac830c7cfca0b2871bd8
Author: zhiguo.zhang <email address hidden>
Date: Wed Jun 5 00:16:44 2019 +0800

    Upgrade rt kernel patch to CentOS7.6 3.10.0-957.12.2

    New set of CVEs was reported against Intel CPUs: CVE-2018-12126,
    CVE-2018-12127, CVE-2018-12130 and CVE-2019-11091.
    For these CVEs there are RH and CentOS updates available.

    CVE-2018-12126:
    Microarchitectural Store Buffer Data Sampling (MSBDS):
    Store buffers on some microprocessors utilizing speculative
    execution may allow an authenticated user to potentially
    enable information disclosure via a side channel with local access.
    A list of impacted products can be found here:
    https://www.intel.com/content/dam/www/public/us/en/documents/
    corporate-information/SA00233-microcode-update-guidance_05132019.pdf

    CVE-2018-12127:
    Microarchitectural Load Port Data Sampling (MLPDS):
    Load ports on some microprocessors utilizing speculative execution
    may allow an authenticated user to potentially enable information
    disclosure via a side channel with local access. A list of impacted
    products can be found here:
    https://www.intel.com/content/dam/www/public/us/en/documents/
    corporate-information/SA00233-microcode-update-guidance_05132019.pdf

    CVE-2018-12130:
    Microarchitectural Fill Buffer Data Sampling (MFBDS):
    Fill buffers on some microprocessors utilizing speculative execution
    may allow an authenticated user to potentially enable information
    disclosure via a side channel with local access. A list of impacted
    products can be found here:
    https://www.intel.com/content/dam/www/public/us/en/documents/
    corporate-information/SA00233-microcode-update-guidance_05132019.pdf

    CVE-2019-11091:
    Microarchitectural Data Sampling Uncacheable Memory(MDSUM):
    Uncacheable memory on some microprocessors utilizing speculative
    execution may allow an authenticated user to potentially enable
    information disclosure via a side channel with local access.
    A list of impacted products can be found here:
    https://www.intel.com/content/dam/www/public/us/en/documents/
    corporate-information/SA00233-microcode-update-guidance_05132019.pdf

    These are from the http://cve.mitre.org website.
    These are the MDS security CVEs.

    The patch is modified as follows:
    1.Delete the 929-931 line of the arch/x86/kernel/cpu/cacheinfo.c
      file,
      because starlingx's Porting-Cacheinfo-from-Kernel-4.10.17.patch
      removes the ici_cpuid4_info structure.

    2.Except for the modification of the file in 1, the other patches
      only modify the line number.

    Closes-Bug: 1830487
    Depends-On: https://review.opendev.org/663071
    Change-Id: I16ac63df21eeb85b4fc3ab19d539986e77c8c0d3
    Signed-off-by: zhiguo.zhang <email address hidden>