This patch series increase security of suspend and hibernate actions. It allows user to safely wipe crypto keys before suspend and hibernate actions starts without race conditions on userspace process with heavy I/O. To automatically wipe cryto key for <device> before hibernate action call: $ dmsetup message <device> 0 key wipe_on_hibernation To automatically wipe cryto key for <device> before suspend action call: $ dmsetup message <device> 0 key wipe_on_suspend To disable automatic wipe call retain_on_suspend/retain_on_hibernation. Pali Rohár (3): PM suspend/hibernate: Call notifier after freezing processes dm: Export function dm_suspend_md() dm-crypt: Adds support for wiping key when doing suspend/hibernation drivers/md/dm-crypt.c | 126 +++++++++++++++++++++++++++++++++++++++++++--- drivers/md/dm.c | 6 +++ drivers/md/dm.h | 5 ++ include/linux/suspend.h | 2 + kernel/power/hibernate.c | 2 + kernel/power/suspend.c | 4 +- 6 files changed, 136 insertions(+), 9 deletions(-) -- 1.7.9.5 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
