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XCCDF
Guide to the Secure Configuration of Red Hat Enterprise Linux 9
System Settings
Kernel Configuration
Perform full reference count validation
Perform full reference count validation
An XCCDF Rule
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Perform full reference count validation
Medium Severity
Enabling this switches the refcounting infrastructure from a fast unchecked atomic_t implementation to a fully state checked implementation, which can have a slight impact in performance. This configuration is available from kernel 4.13, but may be available if backported by distros. The configuration that was used to build kernel is available at
/boot/config-*
. To check the configuration value for
CONFIG_REFCOUNT_FULL
, run the following command:
grep CONFIG_REFCOUNT_FULL /boot/config-*
For each kernel installed, a line with value "y" should be returned.