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Merge pull request #148 from monsieuremre/module-loading-hardening

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Harden the loading of new modules to the kernel after install
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Patrick Schleizer 2023-11-05 17:41:56 -05:00 committed by GitHub
commit 36f3c30440
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2 changed files with 19 additions and 0 deletions
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14
lib/systemd/system/harden-module-loading.service Normal file
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[Unit]
Description=Disable the loading of modules to the kernel after startup. This could be malicious.
After=systemd-modules-load.service
Before=sysinit.target
# This functionality is implemented with this and not directly in the sysctl config is
# to allow systemd-modules-load.service to load the modules with no problem but
# to disallow anyone else do the same after the system boots up.
[Service]
Type=oneshot
ExecStart=/usr/libexec/security-misc/disable-kernel-module-loading
[Install]
WantedBy=sysinit.target

5
usr/libexec/security-misc/disable-kernel-module-loading Normal file
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#!/bin/bash
sysctl -w kernel.modules_disabled=1
echo "The loading of new modules to the kernel has been disabled by security-misc"