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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Wed, 4 Mar 2020 12:39:05 +0530
Message-ID: <CA+G9fYs14zfwfApDMdhdGgrBZ00EDrZZGZbuRDoN20Q7aGZdFw@mail.gmail.com>
Subject: Re: [PATCH 4.19 00/87] 4.19.108-stable review
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     open list <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Shuah Khan <shuah@kernel.org>, patches@kernelci.org,
        Ben Hutchings <ben.hutchings@codethink.co.uk>,
        lkft-triage@lists.linaro.org,
        linux- stable <stable@vger.kernel.org>
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On Tue, 3 Mar 2020 at 23:30, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 4.19.108 release.
> There are 87 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Thu, 05 Mar 2020 17:43:27 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-=
4.19.108-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable=
-rc.git linux-4.19.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Results from Linaro=E2=80=99s test farm.
Regressions detected on x86_64 and i386.

Test failure output:
CVE-2017-5715: VULN (IBRS+IBPB or retpoline+IBPB+RSB filling, is
needed to mitigate the vulnerability)

Test description:
CVE-2017-5715 branch target injection (Spectre Variant 2)

Impact: Kernel
Mitigation 1: new opcode via microcode update that should be used by
up to date compilers to protect the BTB (by flushing indirect branch
predictors)
Mitigation 2: introducing "retpoline" into compilers, and recompile
software/OS with it
Performance impact of the mitigation: high for mitigation 1, medium
for mitigation 2, depending on your CPU

ref:
https://github.com/speed47/spectre-meltdown-checker
https://qa-reports.linaro.org/lkft/linux-stable-rc-4.19-oe/build/v4.19.107-=
88-g619f84afab6a/testrun/1265077/log
https://qa-reports.linaro.org/lkft/linux-stable-rc-4.19-oe/tests/spectre-me=
ltdown-checker-test/CVE-2017-5715

Summary
------------------------------------------------------------------------

kernel: 4.19.108-rc1
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stab=
le-rc.git
git branch: linux-4.19.y
git commit: 619f84afab6af6b99d65c2e2c76cf7b899fca40e
git describe: v4.19.107-88-g619f84afab6a
Test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-4.19-oe/bu=
ild/v4.19.107-88-g619f84afab6a

Regressions (compared to build v4.19.107)
------------------------------------------------------------------------

i386:
  spectre-meltdown-checker-test:
    * CVE-2017-5715

x86:
  spectre-meltdown-checker-test:
    * CVE-2017-5715

No fixes (compared to build v4.19.107)

Ran 21202 total tests in the following environments and test suites.

Environments
--------------
- dragonboard-410c - arm64
- hi6220-hikey - arm64
- i386
- juno-r2 - arm64
- nxp-ls2088
- qemu_arm
- qemu_arm64
- qemu_i386
- qemu_x86_64
- x15 - arm
- x86_64

Test Suites
-----------
* build
* install-android-platform-tools-r2600
* kselftest
* linux-log-parser
* perf
* libhugetlbfs
* ltp-cap_bounds-tests
* ltp-commands-tests
* ltp-containers-tests
* ltp-cpuhotplug-tests
* ltp-cve-tests
* ltp-dio-tests
* ltp-fcntl-locktests-tests
* ltp-filecaps-tests
* ltp-fs-tests
* ltp-fs_bind-tests
* ltp-fs_perms_simple-tests
* ltp-fsx-tests
* ltp-hugetlb-tests
* ltp-io-tests
* ltp-ipc-tests
* ltp-math-tests
* ltp-mm-tests
* ltp-nptl-tests
* ltp-pty-tests
* ltp-sched-tests
* ltp-securebits-tests
* ltp-syscalls-tests
* network-basic-tests
* spectre-meltdown-checker-test
* v4l2-compliance
* kvm-unit-tests
* ltp-crypto-tests
* ltp-cap_bounds-64k-page_size-tests
* ltp-cap_bounds-kasan-tests
* ltp-commands-64k-page_size-tests
* ltp-commands-kasan-tests
* ltp-containers-64k-page_size-tests
* ltp-containers-kasan-tests
* ltp-cpuhotplug-64k-page_size-tests
* ltp-cpuhotplug-kasan-tests
* ltp-crypto-64k-page_size-tests
* ltp-crypto-kasan-tests
* ltp-cve-64k-page_size-tests
* ltp-cve-kasan-tests
* ltp-dio-64k-page_size-tests
* ltp-dio-kasan-tests
* ltp-fcntl-locktests-64k-page_size-tests
* ltp-fcntl-locktests-kasan-tests
* ltp-filecaps-64k-page_size-tests
* ltp-filecaps-kasan-tests
* ltp-fs-64k-page_size-tests
* ltp-fs-kasan-tests
* ltp-fs_bind-64k-page_size-tests
* ltp-fs_bind-kasan-tests
* ltp-fs_perms_simple-64k-page_size-tests
* ltp-fs_perms_simple-kasan-tests
* ltp-fsx-64k-page_size-tests
* ltp-fsx-kasan-tests
* ltp-hugetlb-64k-page_size-tests
* ltp-hugetlb-kasan-tests
* ltp-io-64k-page_size-tests
* ltp-io-kasan-tests
* ltp-ipc-64k-page_size-tests
* ltp-ipc-kasan-tests
* ltp-math-64k-page_size-tests
* ltp-math-kasan-tests
* ltp-mm-64k-page_size-tests
* ltp-nptl-64k-page_size-tests
* ltp-nptl-kasan-tests
* ltp-pty-64k-page_size-tests
* ltp-pty-kasan-tests
* ltp-sched-64k-page_size-tests
* ltp-sched-kasan-tests
* ltp-securebits-64k-page_size-tests
* ltp-securebits-kasan-tests
* ltp-syscalls-64k-page_size-tests
* ltp-syscalls-compat-tests
* ltp-syscalls-kasan-tests
* ltp-open-posix-tests
* ssuite
* kselftest-vsyscall-mode-native
* kselftest-vsyscall-mode-none
* ltp-mm-kasan-tests

--=20
Linaro LKFT
https://lkft.linaro.org