Your message dated Sun, 13 Sep 2026 18:04:45 +0000
with message-id <[email protected]>
and subject line Bug#1147573: fixed in llvm-toolchain-21 1:21.1.8-11
has caused the Debian Bug report #1147573,
regarding packaging of the fuzzer libraries is broken with LLVM 21, 22 and 23
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1147573: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1147573
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: src:llvm-toolchain-21
Version: 1:21.1.8-10
Severity: serious
Tags: sid forky
As seen in the vbox-tools upload to migrate from LLVM 19 to 21, the
fuzzer libraries are not used anymore (or not found) when built with
LLVM 21. You can reproduce that when building with the unversioned clang:
[...]
LD tests/vb2_keyblock_fuzzer
clang -o
/packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/tests/vb2_keyblock_fuzzer
-Wl,-z,relro -Wl,-z,now -Wl,--gc-sections -pie -Xlinker
--allow-multiple-definition -fsanitize=fuzzer
/packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/tests/vb2_keyblock_fuzzer.o
/packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/vboot_fw.a -lrt -luuid
/usr/bin/x86_64-linux-gnu-ld.bfd/usr/bin/x86_64-linux-gnu-ld.bfd: cannot
find : cannot find
/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer.a:
/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer.a:
No such file or directory
No such file or directory
/usr/bin/x86_64-linux-gnu-ld.bfd: cannot find
/usr/bin/x86_64-linux-gnu-ld.bfd: cannot find
/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer_interceptors.a:
/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer_interceptors.aNo
such file or directory:
No such file or directory
/usr/bin/x86_64-linux-gnu-ld.bfd/usr/bin/x86_64-linux-gnu-ld.bfd: cannot
find : cannot find
/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.ubsan_standalone.a/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.ubsan_standalone.a:
: No such file or directoryNo such file or directory
/usr/bin/x86_64-linux-gnu-ld.bfd: cannot find
/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer.a:
No such file or directory
/usr/bin/x86_64-linux-gnu-ld.bfd: cannot find
/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer_interceptors.a:
No such file or directory
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
make[2]: *** [Makefile:1156:
/packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/tests/cgpt_fuzzer]
Error 1
make[2]: *** Waiting for unfinished jobs....
So apparently building and shipping Debian's own libFuzzer.a is not good
enough anymore.
Two solutions here:
- stop building the libfuzzer-N-dev package
- Ship the libclang_rt.fuzzer.a (and maybe other) libraries.
This is seen with LLVM 21, 22 and 23.
--- End Message ---
--- Begin Message ---
Source: llvm-toolchain-21
Source-Version: 1:21.1.8-11
Done: Gianfranco Costamagna <[email protected]>
We believe that the bug you reported is fixed in the latest version of
llvm-toolchain-21, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Gianfranco Costamagna <[email protected]> (supplier of updated
llvm-toolchain-21 package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Fri, 28 Aug 2026 11:47:04 +0200
Source: llvm-toolchain-21
Architecture: source
Version: 1:21.1.8-11
Distribution: unstable
Urgency: medium
Maintainer: LLVM Packaging Team <[email protected]>
Changed-By: Gianfranco Costamagna <[email protected]>
Closes: 1147573
Changes:
llvm-toolchain-21 (1:21.1.8-11) unstable; urgency=medium
.
[ Sylvestre Ledru ]
* d/rules: only enable sccache if the binary actually runs
* d/control.in: libfuzzer-X.Y-dev now depends on libclang-rt-X.Y-dev.
-fsanitize=fuzzer links libclang_rt.fuzzer*.a (and
libclang_rt.ubsan_standalone.a) from the compiler-rt resource
directory, which lives in libclang-rt-X.Y-dev. As it was only a
Recommends of libclang-common-X.Y-dev, it was not pulled into build
chroots and the link failed. Closes: #1147573.
* d/tests/fuzzer-test: new autopkgtest building a fuzzer with only
libfuzzer-X.Y-dev installed, to catch this dependency issue.
* d/debian-llvm-testsuite.bats: don't skip the libFuzzer compilation test
when the compiler-rt libraries are missing, fail instead.
.
[ Gianfranco Costamagna ]
* Commit Ubuntu patch to git
* Skip common packages also for stonking
.
[ Karl Smeltzer <[email protected]> ]
* Add patch from Ubuntu: lldb-python-wrapper-exceptions.diff
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