Merci pour le lien, ça répond à quelques unes de mes questionnements.
le rpm ci dessous donne:

$ rpm -qi --changelog kernel-6.13.12-100.fc40.x86_64 |less
Name        : kernel
Version     : 6.13.12
Release     : 100.fc40
Architecture: x86_64
Install Date: ven. 25 avril 2025 18:44:09
Group       : Unspecified
Size        : 0
License     : ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-2-Clause) AND ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) AND ((GPL-2.0-only WITH Linux-syscal
l-note) OR CDDL-1.0) AND ((GPL-2.0-only WITH Linux-syscall-note) OR Linux-OpenIB) AND ((GPL-2.0-only WITH Linux-syscall-note) OR MIT) AND ((GPL-2.0-or-later WITH Linux-
syscall-note) OR BSD-3-Clause) AND ((GPL-2.0-or-later WITH Linux-sysc
all-note) OR MIT) AND 0BSD AND BSD-2-Clause AND (BSD-2-Clause OR Apache-2.0) AND BSD-3-Clause AND BSD-3-Clause-Clear AND CC0-1.0 AND GFDL-1.1-no-invariants-or-later AND GPL-1.0-or-later AND (GPL-1.0-or-later OR BSD-3-Clause) AND (GPL-1.0-or-later WITH Linux-syscall-note) AND GPL-2 AND GPL-2.0-only AND (GPL-2.0-only OR Apache-2.0) AND (GPL-2.0-only OR BSD-2-Clause) AND (GPL-2.0-only OR BSD-3-Clause) AND (GPL-2.0-only OR CDDL-1.0) AND (GPL-2.0-only OR GFDL-1.1-no-invariants-or-later) AND (GPL-2.0-only OR GFDL-1.2-no-invariants-only) AND (GPL-2.0-only WITH Linux-syscall-note) AND GPL-2.0-or-later AND (GPL-2.0-or-later OR BSD-2-Clause) AND (GPL-2.0-or-later OR BSD-3-Clause) AND (GPL-2.0-or-later OR CC-BY-4.0) AND (GPL-2.0-or-later WITH GCC-exception-2.0) AND (GPL-2.0-or-later WITH Linux-syscall-note) AND ISC AND LGPL-2.0-or-later AND (LGPL-2.0-or-later OR BSD-2-Clause) AND (LGPL-2.0-or-later WITH Linux-syscall-note) AND LGPL-2.1-only AND (LGPL-2.1-only OR BSD-2-Clause) AND (LGPL-2.1-only WITH Linux-syscall-note) AND LGPL-2.1-or-later AND (LGPL-2.1-or-later WITH Linux-syscall-note) AND (Linux-OpenIB OR GPL-2.0-only) AND (Linux-OpenIB OR GPL-2.0-only OR BSD-2-Clause) AND Linux-man-pages-copyleft AND MIT AND (MIT OR Apache-2.0) AND (MIT OR GPL-2.0-only) AND (MIT OR GPL-2.0-or-later) AND (MIT OR LGPL-2.1-only) AND (MPL-1.1 OR GPL-2.0-only) AND (X11 OR GPL-2.0-only) AND (X11 OR GPL-2.0-or-later) AND Zlib AND (copyleft-next-0.3.1 OR GPL-2.0-or-later)
Signature   : RSA/SHA256, lun. 21 avril 2025 15:14:48, Key ID 0727707ea15b79cc
Source RPM  : kernel-6.13.12-100.fc40.src.rpm
Build Date  : dim. 20 avril 2025 17:18:06
Build Host  : bkernel02.iad2.fedoraproject.org
Packager    : Fedora Project
Vendor      : Fedora Project
URL         : https://www.kernel.org/
Bug URL     : https://bugz.fedoraproject.org/kernel
Summary     : The Linux kernel
Description :
The kernel meta package
* dim. avril 20 2025 Justin M. Forbes <jforbes@fedoraproject.org> [6.13.12-100]
- Turn off libbpf dynamic for perf (Justin M. Forbes)

A priori ca viendrait bien du projet fedora, non ??

Edit Nicosss : Mise en forme