[dm-devel] [PATCH v2 0/3] dm-crypt: Adds support for wiping key when doing suspend/hibernation

[Pali Rohár]

On Sunday 21 June 2015 13:20:31 Pali Rohár wrote:
> 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(-)
> 

Hello, can somebody look and review this (v2) patch series?

-- 
Pali Rohár
pali.rohar at gmail.com