Are the keys of mounted encrypted disks secured during reboot?

John Smith <[email protected]> Mon, 26 Dec 2022 19:13:32 +0000

Newsgroups	dev.linux.lists.cryptsetup
Message-ID	<CA+5JoNqEPTTCAppS8EFDwBVtkfK8f_xWhf3ZYE+9bAQRNca4aw@mail.gmail.com>

During the course of proper shutdown/reboot/suspend-to-disk, does the
kernel securely erase (or at least free memory of - as it pertains to
init_on_free=1) encryption keys of all dmcrypt/luks systems which
remained mounted?

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