# Set to 1 if building an empty subscription-only package.
%define empty_package 0
#######################################################
# Only need to update these variables and the changelog
%define kernel_ver 4.18.0-193.1.2.el8_2
%define kpatch_ver 0.9.1
%define rpm_ver 1
%define rpm_rel 3
%if !%{empty_package}
# Patch sources below. DO NOT REMOVE THIS LINE.
#
# https://bugzilla.redhat.com/1835531
Source100: block-block-bfq-fix-use-after-free-in-bfq_idle_slice.patch
#
# https://bugzilla.redhat.com/1847371
Source101: x86-speculation-Prevent-rogue-cross-process-SSBD-shu.patch
#
# https://bugzilla.redhat.com/1847404
# https://bugzilla.redhat.com/1847402
Source102: kpatch-adapted-patch-for-CVE-2020-10767-and-CVE-2020-10768.patch
# End of patch sources. DO NOT REMOVE THIS LINE.
%endif
%define sanitized_rpm_rel %{lua: print((string.gsub(rpm.expand("%rpm_rel"), "%.", "_")))}
%define sanitized_kernel_ver %{lua: print((string.gsub(string.gsub(rpm.expand("%kernel_ver"), '.el8_?\%d?', ""), "%.", "_")))}
%define kernel_ver_arch %{kernel_ver}.%{_arch}
Name: kpatch-patch-%{sanitized_kernel_ver}
Version: %{rpm_ver}
Release: %{rpm_rel}%{?dist}
%if %{empty_package}
Summary: Initial empty kpatch-patch for kernel-%{kernel_ver_arch}
%else
Summary: Live kernel patching module for kernel-%{kernel_ver_arch}
%endif
Group: System Environment/Kernel
License: GPLv2
ExclusiveArch: x86_64
Conflicts: %{name} < %{version}-%{release}
Provides: kpatch-patch = %{kernel_ver_arch}
Provides: kpatch-patch = %{kernel_ver}
%if !%{empty_package}
Requires: systemd
%endif
Requires: kpatch >= 0.6.1-1
Requires: kernel-uname-r = %{kernel_ver_arch}
%if !%{empty_package}
BuildRequires: patchutils
BuildRequires: kernel-devel = %{kernel_ver}
BuildRequires: kernel-debuginfo = %{kernel_ver}
# kernel build requirements, generated from:
# % rpmspec -q --buildrequires kernel.spec | sort | awk '{print "BuildRequires:\t" $0}'
# with arch-specific packages moved into conditional block
BuildRequires: asciidoc audit-libs-devel bash bc binutils binutils-devel bison bzip2 diffutils elfutils elfutils-devel findutils flex gawk gcc gettext git gzip hmaccalc hostname kmod m4 make ncurses-devel net-tools newt-devel numactl-devel openssl openssl-devel patch pciutils-devel perl-Carp perl-devel perl(ExtUtils::Embed) perl-generators perl-interpreter python3-devel python3-docutils redhat-rpm-config rpm-build sh-utils tar xmlto xz xz-devel zlib-devel java-devel kabi-dw
%ifarch x86_64
BuildRequires: pesign >= 0.10-4
%endif
%ifarch ppc64le
BuildRequires: gcc-plugin-devel
%endif
Source: https://github.com/dynup/kpatch/archive/v%{kpatch_ver}.tar.gz
Source10: kernel-%{kernel_ver}.src.rpm
# kpatch-build patches
Patch1: create-diff-object-ignore-altrinstr-aux-backport.patch
%global _dupsign_opts --keyname=rhelkpatch1
%define builddir %{_builddir}/kpatch-%{kpatch_ver}
%define kpatch %{_sbindir}/kpatch
%define kmoddir %{_usr}/lib/kpatch/%{kernel_ver_arch}
%define kinstdir %{_sharedstatedir}/kpatch/%{kernel_ver_arch}
%define patchmodname kpatch-%{sanitized_kernel_ver}-%{version}-%{sanitized_rpm_rel}
%define patchmod %{patchmodname}.ko
%define _missing_build_ids_terminate_build 1
%define _find_debuginfo_opts -r
%undefine _include_minidebuginfo
%undefine _find_debuginfo_dwz_opts
%description
This is a kernel live patch module which can be loaded by the kpatch
command line utility to modify the code of a running kernel. This patch
module is targeted for kernel-%{kernel_ver}.
%prep
%autosetup -n kpatch-%{kpatch_ver} -p1
%build
kdevdir=/usr/src/kernels/%{kernel_ver_arch}
vmlinux=/usr/lib/debug/lib/modules/%{kernel_ver_arch}/vmlinux
# kpatch-build
make -C kpatch-build
# patch module
for i in %{sources}; do
[[ $i == *.patch ]] && patch_sources="$patch_sources $i"
done
export CACHEDIR="%{builddir}/.kpatch"
kpatch-build/kpatch-build -n %{patchmodname} -r %{SOURCE10} -v $vmlinux --skip-cleanup $patch_sources || { cat "${CACHEDIR}/build.log"; exit 1; }
%install
installdir=%{buildroot}/%{kmoddir}
install -d $installdir
install -m 755 %{builddir}/%{patchmod} $installdir
%files
%{_usr}/lib/kpatch
%post
%{kpatch} install -k %{kernel_ver_arch} %{kmoddir}/%{patchmod}
chcon -t modules_object_t %{kinstdir}/%{patchmod}
sync
if [[ %{kernel_ver_arch} = $(uname -r) ]]; then
cver="%{rpm_ver}_%{rpm_rel}"
pname=$(echo "kpatch_%{sanitized_kernel_ver}" | sed 's/-/_/')
lver=$({ %{kpatch} list | sed -nr "s/^${pname}_([0-9_]+)\ \[enabled\]$/\1/p"; echo "${cver}"; } | sort -V | tail -1)
if [ "${lver}" != "${cver}" ]; then
echo "WARNING: at least one loaded kpatch-patch (${pname}_${lver}) has a newer version than the one being installed."
echo "WARNING: You will have to reboot to load a downgraded kpatch-patch"
else
%{kpatch} load %{patchmod}
fi
fi
exit 0
%postun
%{kpatch} uninstall -k %{kernel_ver_arch} %{patchmod}
sync
exit 0
%else
%description
This is an empty kpatch-patch package which does not contain any real patches.
It is only a method to subscribe to the kpatch stream for kernel-%{kernel_ver}.
%files
%doc
%endif
%changelog
* Fri Jun 26 2020 Artem Savkov <asavkov@redhat.com> [1-3.el8]
- Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. [1847404] [1847402] {CVE-2020-10767} {CVE-2020-10768}
* Thu Jun 25 2020 Julien Thierry <jthierry@redhat.com> [1-2.el8]
- Prevent rogue cross-process SSBD shutdown [1847371] {CVE-2020-10766}
* Mon May 25 2020 Artem Savkov <asavkov@redhat.com> [1-1.el8]
- use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body [1835531] {CVE-2020-12657}
* Mon May 11 2020 Artem Savkov <asavkov@redhat.com> [0-0.el8]
- An empty patch to subscribe to kpatch stream for kernel-4.18.0-193.1.2.el8_2 [1834315]