diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..03eb444
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+SOURCES/lz4-1.9.3.tar.gz
diff --git a/.lz4.metadata b/.lz4.metadata
new file mode 100644
index 0000000..46dfab6
--- /dev/null
+++ b/.lz4.metadata
@@ -0,0 +1 @@
+5a19554ef404a609123b756ddcbbb677df838f05 SOURCES/lz4-1.9.3.tar.gz
diff --git a/SOURCES/lz4-cve-2021-3520.patch b/SOURCES/lz4-cve-2021-3520.patch
new file mode 100644
index 0000000..8a22dce
--- /dev/null
+++ b/SOURCES/lz4-cve-2021-3520.patch
@@ -0,0 +1,22 @@
+From 8301a21773ef61656225e264f4f06ae14462bca7 Mon Sep 17 00:00:00 2001
+From: Jasper Lievisse Adriaanse <j@jasper.la>
+Date: Fri, 26 Feb 2021 15:21:20 +0100
+Subject: [PATCH] Fix potential memory corruption with negative memmove() size
+
+---
+ lib/lz4.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/lz4.c b/lib/lz4.c
+index 5f524d01..c2f504ef 100644
+--- a/lib/lz4.c
++++ b/lib/lz4.c
+@@ -1749,7 +1749,7 @@ LZ4_decompress_generic(
+ const size_t dictSize /* note : = 0 if noDict */
+ )
+ {
+- if (src == NULL) { return -1; }
++ if ((src == NULL) || (outputSize < 0)) { return -1; }
+
+ { const BYTE* ip = (const BYTE*) src;
+ const BYTE* const iend = ip + srcSize;
diff --git a/SPECS/lz4.spec b/SPECS/lz4.spec
new file mode 100644
index 0000000..87faae3
--- /dev/null
+++ b/SPECS/lz4.spec
@@ -0,0 +1,276 @@
+%global _vpath_srcdir contrib/meson
+
+Name: lz4
+Version: 1.9.3
+Release: 5%{?dist}
+Summary: Extremely fast compression algorithm
+
+License: GPLv2+ and BSD
+URL: https://lz4.github.io/lz4/
+Source0: https://github.com/lz4/lz4/archive/v%{version}/%{name}-%{version}.tar.gz
+
+Obsoletes: %{name} < 1.7.5-3
+
+BuildRequires: make
+BuildRequires: gcc
+BuildRequires: meson >= 0.43
+
+Patch1: lz4-cve-2021-3520.patch
+%description
+LZ4 is an extremely fast loss-less compression algorithm, providing compression
+speed at 400 MB/s per core, scalable with multi-core CPU. It also features
+an extremely fast decoder, with speed in multiple GB/s per core, typically
+reaching RAM speed limits on multi-core systems.
+
+%package libs
+Summary: Libaries for lz4
+Obsoletes: %{name} < 1.7.5-3
+
+%description libs
+This package contains the libaries for lz4.
+
+%package devel
+Summary: Development files for lz4
+Requires: %{name}-libs%{?_isa} = %{version}-%{release}
+
+%description devel
+This package contains the header(.h) and library(.so) files required to build
+applications using liblz4 library.
+
+%package static
+Summary: Static library for lz4
+
+%description static
+LZ4 is an extremely fast loss-less compression algorithm. This package
+contains static libraries for static linking of applications.
+
+%prep
+%autosetup -p1
+
+%build
+%meson \
+ -Dbin_programs=true \
+ -Ddefault_library=both \
+ %{nil}
+%meson_build
+
+%install
+%meson_install
+
+%files
+%license programs/COPYING
+%doc NEWS
+%{_bindir}/lz4
+%{_bindir}/lz4c
+%{_bindir}/lz4cat
+%{_bindir}/unlz4
+%{_mandir}/man1/lz4.1*
+%{_mandir}/man1/lz4c.1*
+%{_mandir}/man1/lz4cat.1*
+%{_mandir}/man1/unlz4.1*
+
+%files libs
+%doc lib/LICENSE
+%{_libdir}/liblz4.so.*
+
+%files devel
+%{_includedir}/lz4*.h
+%{_libdir}/liblz4.so
+%{_libdir}/pkgconfig/liblz4.pc
+
+%files static
+%doc lib/LICENSE
+%{_libdir}/liblz4.a
+
+%changelog
+* Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 1.9.3-5
+- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
+ Related: rhbz#1991688
+
+* Thu May 27 2021 Jakub Martisko <jamartis@redhat.com> - 1.9.3-4
+- Fix cve-2021-3520
+resolves: cve-2021-3520
+
+* Fri Apr 16 2021 Mohan Boddu <mboddu@redhat.com> - 1.9.3-3
+- Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937
+
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.3-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
+* Wed Jan 06 2021 Timothée Ravier <travier@redhat.com> - 1.9.3-1
+- Update to 1.9.3 and switch to Meson
+
+* Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Wed Aug 14 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.9.1-1
+- Update to 1.9.1
+
+* Thu Jul 25 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.8.3-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
+* Fri Feb 01 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.8.3-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
+
+* Mon Oct 29 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 1.8.3-1
+- Update to latest version
+
+* Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.8.2-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
+
+* Sat May 12 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.8.2-1
+- Update to 1.8.2
+
+* Fri Feb 09 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.8.1.2-4
+- Escape macros in %%changelog
+
+* Thu Feb 08 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.8.1.2-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
+
+* Wed Jan 31 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.8.1.2-2
+- Switch to %%ldconfig_scriptlets
+
+* Mon Jan 15 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.8.1.2-1
+- Update to 1.8.1.2
+
+* Sat Aug 19 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.8.0-1
+- Update to 1.8.0
+
+* Thu Aug 03 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.7.5-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild
+
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.7.5-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Sat Jul 08 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.7.5-4
+- Split libs properly for multilib
+
+* Sat Mar 4 2017 Peter Robinson <pbrobinson@fedoraproject.org> 1.7.5-3
+- Split libs out to a sub package
+
+* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.7.5-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
+
+* Thu Jan 05 2017 Igor Gnatenko <i.gnatenko.brain@gmail.com> - 1.7.5-1
+- Update to 1.7.5
+
+* Fri Nov 25 2016 Igor Gnatenko <i.gnatenko.brain@gmail.com> - 1.7.4.2-1
+- Update to 1.7.4.2 (RHBZ #1397373)
+
+* Sat Nov 19 2016 Igor Gnatenko <i.gnatenko.brain@gmail.com> - 1.7.3-1
+- Update to 1.7.3 (RHBZ #1395458)
+
+* Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - r131-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
+* Mon Jul 06 2015 pjp <pjp@fedoraproject.org> - r131-1
+- New: Dos/DJGPP target #114.
+- Added: Example using lz4frame library #118.
+- Changed: liblz4.a no longer compiled with -fPIC by default.
+
+* Thu Jun 18 2015 pjp <pjp@fedoraproject.org> - r130-1
+- Fixed: incompatibility sparse mode vs console.
+- Fixed: LZ4IO exits too early when frame crc not present.
+- Fixed: incompatibility sparse mode vs append mode.
+- Performance fix: big compression speed boost for clang(+30%%).
+
+* Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - r129-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
+* Wed May 27 2015 pjp <pjp@fedoraproject.org> - r129-1
+- New LZ4_compress_fast() API.
+- New LZ4 CLI improved performance with multiple files.
+- Other bug fix and documentation updates.
+
+* Mon Apr 06 2015 pjp <pjp@fedoraproject.org> - r128-2
+- Update files section to install unlz4 & its manual
+
+* Wed Apr 01 2015 pjp <pjp@fedoraproject.org> - r128-1
+- lz4cli sparse file support
+- Restored lz4hc compression ratio
+- lz4 cli supports long commands
+- Introduced lz4-static sub package BZ#1208203
+
+* Thu Jan 08 2015 pjp <pjp@fedoraproject.org> - r127-2
+- Bump dist to override an earlier build.
+
+* Wed Jan 07 2015 pjp <pjp@fedoraproject.org> - r127-1
+- Fixed a bug in LZ4 HC streaming mode
+- New lz4frame API integrated into liblz4
+- Fixed a GCC 4.9 bug on highest performance settings
+
+* Thu Nov 13 2014 pjp <pjp@fedoraproject.org> - r124-1
+- New LZ4 HC Streaming mode
+
+* Tue Sep 30 2014 pjp <pjp@fedoraproject.org> - r123-1
+- Added experimental lz4frame API.
+- Fix s390x support.
+
+* Sat Aug 30 2014 pjp <pjp@fedoraproject.org> - r122-1
+- new release
+- Fixed AIX & AIX64 support (SamG)
+- Fixed mips 64-bits support (lew van)
+
+* Sun Aug 17 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - r121-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild
+
+* Fri Aug 08 2014 Igor Gnatenko <i.gnatenko.brain@gmail.com> - r121-2
+- fix destdir
+
+* Fri Aug 08 2014 pjp <pjp@fedoraproject.org> - r121-1
+- new release
+- Added a pkg-config file.
+- Fixed a LZ4 streaming crash bug.
+
+* Thu Jul 03 2014 pjp <pjp@fedoraproject.org> - r119-1
+- new release
+- Fixed a high Address allocation issue in 32-bits mode.
+
+* Sat Jun 28 2014 pjp <pjp@fedoraproject.org> - r118-1
+- new release
+- install libraries under appropriate _libdir directories.
+
+* Sat Jun 14 2014 pjp <pjp@fedoraproject.org> - r117-3
+- Move shared library object to -devel package.
+
+* Sat Jun 07 2014 pjp <pjp@fedoraproject.org> - r117-2
+- Skip static library from installation.
+
+* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - r117-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
+* Fri Jun 06 2014 pjp <pjp@fedoraproject.org> - r117-1
+- new release
+- added lz4c & lz4cat manual pages.
+
+* Sun Apr 13 2014 pjp <pjp@fedoraproject.org> - r116-1
+- new release 116
+- added lz4cat utility for posix systems
+
+* Sat Mar 15 2014 pjp <pjp@fedoraproject.org> - r114-1
+- new release r114
+- added RPM_OPT_FLAGS to CFLAGS
+- introduced a devel package to build liblz4
+
+* Thu Jan 02 2014 pjp <pjp@fedoraproject.org> - r110-1
+- new release r110
+
+* Sun Nov 10 2013 pjp <pjp@fedoraproject.org> - r108-1
+- new release r108
+
+* Wed Oct 23 2013 pjp <pjp@fedoraproject.org> - r107-1
+- new release r107
+
+* Mon Oct 07 2013 pjp <pjp@fedoraproject.org> - r106-3
+- fixed install section to replace /usr/ with a macro.
+ -> https://bugzilla.redhat.com/show_bug.cgi?id=1015263#c5
+
+* Sat Oct 05 2013 pjp <pjp@fedoraproject.org> - r106-2
+- fixed install section above as suggested in the review.
+ -> https://bugzilla.redhat.com/show_bug.cgi?id=1015263#c1
+
+* Sun Sep 22 2013 pjp <pjp@fedoraproject.org> - r106-1
+- Initial RPM release of lz4-r106