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XCCDF
Guide to the Secure Configuration of Ubuntu 18.04
System Settings
Kernel Configuration
Disable /dev/kmem virtual device support
Disable /dev/kmem virtual device support
An XCCDF Rule
Details
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Disable /dev/kmem virtual device support
Low Severity
Disable support for the /dev/kmem device. The configuration that was used to build kernel is available at
/boot/config-*
. To check the configuration value for
CONFIG_DEVKMEM
, run the following command:
grep CONFIG_DEVKMEM /boot/config-*
Configs with value 'n' are not explicitly set in the file, so either commented lines or no lines should be returned.