Messages in this thread | | | From | Jonathan Corbet <> | Subject | Re: [tech-board] [PATCH 00/11] xz: Updates to license, filters, and compression options | Date | Fri, 29 Mar 2024 14:51:41 -0600 |
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"Kees Cook" <keescook@chromium.org> writes:
> On Wed, Mar 20, 2024 at 08:38:33PM +0200, Lasse Collin wrote: >> XZ Embedded, the upstream project, switched from public domain to the >> BSD Zero Clause License (0BSD). Now matching SPDX license identifiers >> can be added. >> >> The new ARM64 and RISC-V filters can be used by Squashfs. >> >> Account for the default threading change made in the xz command line >> tool version 5.6.0. Tweak kernel compression options for archs that >> support XZ compressed kernel. >> >> Documentation was revised. There are minor cleanups too. >> >> Lasse Collin (11): >> MAINTAINERS: Add XZ Embedded maintainers >> LICENSES: Add 0BSD license text >> xz: Switch from public domain to BSD Zero Clause License (0BSD) >> xz: Documentation/staging/xz.rst: Revise thoroughly >> xz: Fix comments and coding style >> xz: Cleanup CRC32 edits from 2018 >> xz: Optimize for-loop conditions in the BCJ decoders >> xz: Add ARM64 BCJ filter >> xz: Add RISC-V BCJ filter >> xz: Use 128 MiB dictionary and force single-threaded mode >> xz: Adjust arch-specific options for better kernel compression >> >> Documentation/staging/xz.rst | 130 ++++++++--------------- >> LICENSES/deprecated/0BSD | 23 ++++ >> MAINTAINERS | 14 +++ >> include/linux/decompress/unxz.h | 5 +- >> include/linux/xz.h | 5 +- >> init/Kconfig | 5 +- >> lib/decompress_unxz.c | 39 ++++--- >> lib/xz/Kconfig | 13 ++- >> lib/xz/xz_crc32.c | 7 +- >> lib/xz/xz_dec_bcj.c | 183 ++++++++++++++++++++++++++++++-- >> lib/xz/xz_dec_lzma2.c | 5 +- >> lib/xz/xz_dec_stream.c | 5 +- >> lib/xz/xz_dec_syms.c | 16 +-- >> lib/xz/xz_dec_test.c | 12 +-- >> lib/xz/xz_lzma2.h | 5 +- >> lib/xz/xz_private.h | 20 ++-- >> lib/xz/xz_stream.h | 7 +- >> scripts/Makefile.lib | 13 ++- >> scripts/xz_wrap.sh | 157 +++++++++++++++++++++++++-- >> 19 files changed, 487 insertions(+), 177 deletions(-) >> create mode 100644 LICENSES/deprecated/0BSD > > Andrew (and anyone else), please do not take this code right now. > > Until the backdooring of upstream xz[1] is fully understood, we should not > accept any code from Jia Tan, Lasse Collin, or any other folks associated > with tukaani.org. It appears the domain, or at least credentials > associated with Jia Tan, have been used to create an obfuscated ssh > server backdoor via the xz upstream releases since at least 5.6.0. > Without extensive analysis, we should not take any associated code. > It may be worth doing some retrospective analysis of past contributions > as well... > > Lasse, are you able to comment about what is going on here?
FWIW, it looks like this series has been in linux-next for a few days. Maybe it needs to come out, for now at least?
jon
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