# git rev-parse -q --verify 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f^{commit}
3f777e19d171670ab558a6d5e6b1ac7f9b6c574f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f
# git clean -qxdf
# < git log -1
# commit 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f
# Merge: 51184ae37e05 316ec1548109
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Apr 28 09:13:08 2020 -0700
# 
#     Merge tag 'cve-2020-11884' from emailed bundle
#     
#     Pull s390 fix from Christian Borntraeger:
#      "Fix a race between page table upgrade and uaccess on s390.
#     
#       This fixes CVE-2020-11884 which allows for a local kernel crash or
#       code execution"
#     
#     * tag 'cve-2020-11884' from emailed bundle:
#       s390/mm: fix page table upgrade vs 2ndary address mode accesses
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f
# < make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 defconfig
# < make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help
# make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig
# make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 
/kisskb/src/arch/um/os-Linux/signal.c: In function 'sig_handler_common':
/kisskb/src/arch/um/os-Linux/signal.c:51:1: warning: the frame size of 2960 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/arch/um/os-Linux/signal.c: In function 'timer_real_alarm_handler':
/kisskb/src/arch/um/os-Linux/signal.c:95:1: warning: the frame size of 2960 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
  LINK linux
Completed OK
# rm -rf /kisskb/build/linus_um-defconfig_um-x86_64
# Build took: 0:00:45.818376