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XCCDF
Guide to the Secure Configuration of Red Hat Enterprise Linux 9
System Settings
zIPL bootloader configuration
Enable page allocator poisoning in zIPL
Enable page allocator poisoning in zIPL
An XCCDF Rule
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Enable page allocator poisoning in zIPL
Medium Severity
To enable poisoning of free pages, check that all boot entries in
/boot/loader/entries/*.conf
have
page_poison=1
included in its options.
To ensure that new kernels and boot entries continue to enable page poisoning, add
page_poison=1
to
/etc/kernel/cmdline
.