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rpm: Ship SELinux policy denying AF_ALG sockets #1318

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Merged
thaJeztah merged 1 commit into from
May 6, 2026
+17 −0
Merged

rpm: Ship SELinux policy denying AF_ALG sockets #1318

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17 changes: 17 additions & 0 deletions rpm/SPECS/docker-ce.spec
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,9 @@ install -D -p -m 0644 engine/contrib/init/systemd/docker.socket ${RPM_BUILD_ROOT
# install manpages
make -C ${RPM_BUILD_DIR}/src/engine/man DESTDIR=${RPM_BUILD_ROOT} mandir=%{_mandir} install

# install SELinux policy to deny AF_ALG sockets in container domains
install -D -m 644 engine/contrib/selinux/docker-af-alg-deny.cil %{buildroot}%{_datadir}/docker-ce/selinux/docker-af-alg-deny.cil

# create the config directory
mkdir -p ${RPM_BUILD_ROOT}/etc/docker

Expand All @@ -114,18 +117,32 @@ mkdir -p ${RPM_BUILD_ROOT}/etc/docker
%{_unitdir}/docker.service
%{_unitdir}/docker.socket
%{_mandir}/man*/*
%{_datadir}/docker-ce/selinux/docker-af-alg-deny.cil
%dir /etc/docker

%post
%systemd_post docker.service
if ! getent group docker > /dev/null; then
groupadd --system docker
fi
# Load the AF_ALG deny policy when SELinux is enabled. This may fail on systems
# with SELinux userspace < 3.6, or without container-selinux's container_domain
# attribute, so keep installation non-fatal.
if command -v semodule > /dev/null 2>&1 && selinuxenabled 2>/dev/null; then
if ! semodule -i %{_datadir}/docker-ce/selinux/docker-af-alg-deny.cil 2>/dev/null; then
echo "warning: could not load docker-af-alg-deny.cil SELinux policy; AF_ALG SELinux denial is not active" >&2
fi
fi

%preun
%systemd_preun docker.service docker.socket

%postun
%systemd_postun_with_restart docker.service
if [ "$1" -eq 0 ]; then
if command -v semodule > /dev/null 2>&1; then
semodule -r container-af-alg-deny 2>/dev/null || :
fi
fi

%changelog
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