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3 changed files with 29 additions and 101 deletions

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@ -1,93 +0,0 @@
From 8eac75556d0f53f3ba6cd12d2545bc8dbebb11f4 Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Tue, 4 Jun 2024 06:57:19 -0400
Subject: [PATCH] repo: Don't try to perform labeling if SELinux is disabled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The default for container execution is that `/sys/fs/selinux`
is not mounted, and the libselinux library function `is_selinux_enabled`
should be used to dynamically check if the system should attempt to perform SELinux labeling.
This is how it's done by rpm, ostree, and systemd for example.
But this code unconditionally tries to label if it finds a policy,
which breaks in an obscure corner case
when executed inside a container that includes policy files (e.g.
fedora/rhel-bootc) but when we're not using overlayfs for the backend
(with BUILDAH_BACKEND=vfs).
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
libdnf/repo/Repo.cpp | 50 +++++++++++++++++++++++---------------------
1 file changed, 26 insertions(+), 24 deletions(-)
diff --git a/libdnf/repo/Repo.cpp b/libdnf/repo/Repo.cpp
index 68b82ccc..4f646f8c 100644
--- a/libdnf/repo/Repo.cpp
+++ b/libdnf/repo/Repo.cpp
@@ -676,34 +676,36 @@ static int create_temporary_directory(char *name_template) {
int old_default_context_was_retrieved= 0;
struct selabel_handle *labeling_handle = NULL;
- /* A purpose of this piece of code is to deal with applications whose
- * security policy overrides a file context for temporary files but don't
- * know that libdnf executes GnuPG which expects a default file context. */
- if (0 == getfscreatecon(&old_default_context)) {
- old_default_context_was_retrieved = 1;
- } else {
- logger->debug(tfm::format("Failed to retrieve a default SELinux context"));
- }
+ if (is_selinux_enabled()) {
+ /* A purpose of this piece of code is to deal with applications whose
+ * security policy overrides a file context for temporary files but don't
+ * know that libdnf executes GnuPG which expects a default file context. */
+ if (0 == getfscreatecon(&old_default_context)) {
+ old_default_context_was_retrieved = 1;
+ } else {
+ logger->debug(tfm::format("Failed to retrieve a default SELinux context"));
+ }
- labeling_handle = selabel_open(SELABEL_CTX_FILE, NULL, 0);
- if (NULL == labeling_handle) {
- logger->debug(tfm::format("Failed to open a SELinux labeling handle: %s",
- strerror(errno)));
- } else {
- if (selabel_lookup(labeling_handle, &new_default_context, name_template, 0700)) {
- /* Here we could hard-code "system_u:object_r:user_tmp_t:s0", but
- * that value should be really defined in default file context
- * SELinux policy. Only log that the policy is incpomplete. */
- logger->debug(tfm::format("Failed to look up a default SELinux label for \"%s\"",
- name_template));
+ labeling_handle = selabel_open(SELABEL_CTX_FILE, NULL, 0);
+ if (NULL == labeling_handle) {
+ logger->debug(tfm::format("Failed to open a SELinux labeling handle: %s",
+ strerror(errno)));
} else {
- if (setfscreatecon(new_default_context)) {
- logger->debug(tfm::format("Failed to set default SELinux context to \"%s\"",
- new_default_context));
+ if (selabel_lookup(labeling_handle, &new_default_context, name_template, 0700)) {
+ /* Here we could hard-code "system_u:object_r:user_tmp_t:s0", but
+ * that value should be really defined in default file context
+ * SELinux policy. Only log that the policy is incpomplete. */
+ logger->debug(tfm::format("Failed to look up a default SELinux label for \"%s\"",
+ name_template));
+ } else {
+ if (setfscreatecon(new_default_context)) {
+ logger->debug(tfm::format("Failed to set default SELinux context to \"%s\"",
+ new_default_context));
+ }
+ freecon(new_default_context);
}
- freecon(new_default_context);
+ selabel_close(labeling_handle);
}
- selabel_close(labeling_handle);
}
#endif
--
2.45.2

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@ -0,0 +1,23 @@
diff -aruN libdnf-0.63.0/docs/hawkey/conf.py libdnf-0.63.0_alma/docs/hawkey/conf.py
--- libdnf-0.63.0/docs/hawkey/conf.py 2021-05-18 17:07:23.000000000 +0300
+++ libdnf-0.63.0_alma/docs/hawkey/conf.py 2021-12-30 11:03:39.179244600 +0300
@@ -260,6 +260,6 @@
rst_prolog = """
.. default-domain:: py
.. _libsolv: https://github.com/openSUSE/libsolv
-.. _bugzilla: https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=hawkey
+.. _bugzilla: https://bugs.almalinux.org/
"""
diff -aruN libdnf-0.63.0/libdnf/conf/Const.hpp libdnf-0.63.0_alma/libdnf/conf/Const.hpp
--- libdnf-0.63.0/libdnf/conf/Const.hpp 2021-05-18 17:07:23.000000000 +0300
+++ libdnf-0.63.0_alma/libdnf/conf/Const.hpp 2021-12-30 11:03:47.004789800 +0300
@@ -41,7 +41,7 @@
"installonlypkg(vm)",
"multiversion(kernel)"};
-constexpr const char * BUGTRACKER="https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=dnf";
+constexpr const char * BUGTRACKER="https://bugs.almalinux.org/";
}

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@ -58,7 +58,7 @@
Name: libdnf
Version: %{libdnf_major_version}.%{libdnf_minor_version}.%{libdnf_micro_version}
Release: 20%{?dist}
Release: 19%{?dist}.alma
Summary: Library providing simplified C and Python API to libsolv
License: LGPLv2+
URL: https://github.com/rpm-software-management/libdnf
@ -112,7 +112,9 @@ Patch46: 0046-Update-translations-RHEL-8.9.patch
Patch47: 0047-filterAdvisory-installed_solvables-sort-RhBug2212838.patch
Patch48: 0048-Avoid-reinstal-installonly-packages-marked-for-ERASE.patch
Patch49: 0049-PGP-Set-a-default-creation-SELinux-labels-on-GnuPG-d.patch
Patch50: 0050-repo-Don-t-try-to-perform-labeling-if-SELinux-is-dis.patch
# Almalinux patches
Patch10001: almalinux_bugtracker.patch
BuildRequires: cmake
@ -363,20 +365,17 @@ popd
%endif
%changelog
* Mon Jun 24 2024 Petr Pisar <ppisar@redhat.com> - 0.63.0-20
- Do not set a default SELinux creation context if SELinux appears to be
disabled (RHEL-43231)
* Wed Mar 27 2024 Eduard Abdullin <eabdullin@almalinux.org> - 0.63.0-19.alma
- AlmaLinux changes
* Wed Oct 18 2023 Petr Pisar <ppisar@redhat.com> - 0.63.0-19
- Set default SELinux labels on GnuPG directories (RHEL-6421)
* Fri Oct 13 2023 Jaroslav Rohel <jrohel@redhat.com> - 0.63.0-18
- filterAdvisory: match installed_solvables sort with lower_bound (RhBug:2212838, RHEL-1244)
- Avoid reinstalling installonly packages marked for ERASE (RhBug:2163474, RHEL-1253)
* Fri Sep 08 2023 Marek Blaha <mblaha@redhat.com> - 0.63.0-17
- Update translations
* Wed May 31 2023 Nicola Sella <nsella@redhat.com> - 0.63-0-16
- Support "proxy=_none_" in main config (RhBug:2155713)
@ -388,7 +387,6 @@ popd
* Wed Oct 26 2022 Nicola Sella <nsella@redhat.com> - 0.63.0-13
- Allow change of arch during security updates with noarch (RhBug:2124483)
* Tue Sep 13 2022 Lukas Hrazky <lhrazky@redhat.com> - 0.63.0-12
- Fix listing a repository without cpeid (RhBug:2066334)