Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down

From	"Rafael J. Wysocki" <rafael@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down
Date	2017-04-06 22:20 +0200
Message-ID	<ttm2R-5DN-3@gated-at.bofh.it> (permalink)
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On Thu, Apr 6, 2017 at 10:09 PM, Rafael J. Wysocki <rafael@kernel.org> wrote:
> On Thu, Apr 6, 2017 at 10:41 AM, David Howells <dhowells@redhat.com> wrote:
>> Oliver Neukum <oneukum@suse.com> wrote:
>>
>>> Your swap partition may be located on an NVDIMM or be encrypted.
>>
>> An NVDIMM should be considered the same as any other persistent storage.
>>
>> It may be encrypted, but where's the key stored, how easy is it to retrieve
>> and does the swapout code know this?
>>
>>> Isn't this a bit overly drastic?
>>
>> Perhaps, but if it's on disk and it's not encrypted, then maybe not.
>
> Right.
>
> Swap encryption is not mandatory and I'm not sure how the hibernate
> code can verify whether or not it is in use.

BTW, SUSE has patches adding secure boot support to the hibernate code
and Jiri promised me to post them last year even. :-)

Thanks,
Rafael

Thread

[PATCH 00/24] Kernel lockdown David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 24/24] Lock down module params that specify hardware  parameters (eg. ioport) David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 03/24] efi: Lock down the kernel if booted in secure boot  mode David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 20/24] bpf: Restrict kernel image access functions when the  kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
    Re: [PATCH 20/24] bpf: Restrict kernel image access functions when  the kernel is locked down Alexei Starovoitov <alexei.starovoitov@gmail.com> - 2017-04-06 14:30 +0200
      Re: [PATCH 20/24] bpf: Restrict kernel image access functions when  the kernel is locked down Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-04-06 14:50 +0200
  [PATCH 12/24] PCI: Lock down BAR access when the kernel is locked  down David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 15/24] asus-wmi: Restrict debugfs interface when the kernel  is locked down David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
    Re: [PATCH 15/24] asus-wmi: Restrict debugfs interface when the  kernel is locked down Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-04-07 12:30 +0200
      Re: [PATCH 15/24] asus-wmi: Restrict debugfs interface when the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-07 15:00 +0200
        Re: [PATCH 15/24] asus-wmi: Restrict debugfs interface when the  kernel is locked down Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-04-09 13:20 +0200
          Re: [PATCH 15/24] asus-wmi: Restrict debugfs interface when the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-10 15:20 +0200
  [PATCH 02/24] Add the ability to lock down access to the running  kernel image David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 07/24] kexec: Disable at runtime if the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
    Re: [PATCH 07/24] kexec: Disable at runtime if the kernel is locked  down Dave Young <dyoung@redhat.com> - 2017-04-07 05:10 +0200
  [PATCH 08/24] Copy secure_boot flag in boot params across kexec  reboot David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 06/24] Add a sysrq option to exit secure boot mode David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 10/24] hibernate: Disable when the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-05 22:20 +0200
  [PATCH 14/24] x86: Restrict MSR access when the kernel is locked  down David Howells <dhowells@redhat.com> - 2017-04-05 22:30 +0200
  [PATCH 04/24] Enforce module signatures if the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-05 22:30 +0200
  [PATCH 11/24] uswsusp: Disable when the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-05 22:30 +0200
    Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down "Rafael J. Wysocki" <rafael@kernel.org> - 2017-04-06 01:40 +0200
      Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down Oliver Neukum <oneukum@suse.com> - 2017-04-06 08:50 +0200
        Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-06 11:30 +0200
          Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down "Rafael J. Wysocki" <rafael@kernel.org> - 2017-04-06 22:20 +0200
            Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down Jiri Kosina <jikos@kernel.org> - 2017-04-06 22:30 +0200
              Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down poma <pomidorabelisima@gmail.com> - 2017-04-08 05:30 +0200
          Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down "Rafael J. Wysocki" <rafael@kernel.org> - 2017-04-06 22:20 +0200
      Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down David Howells <dhowells@redhat.com> - 2017-04-06 09:00 +0200
        Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down "Rafael J. Wysocki" <rafael@kernel.org> - 2017-04-06 22:20 +0200
  [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set David Howells <dhowells@redhat.com> - 2017-04-05 22:30 +0200
    Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Dave Young <dyoung@redhat.com> - 2017-04-07 05:10 +0200
      Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-04-07 05:50 +0200
        Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Dave Young <dyoung@redhat.com> - 2017-04-07 08:20 +0200
          Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has been set David Howells <dhowells@redhat.com> - 2017-04-07 09:10 +0200
            Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Dave Young <dyoung@redhat.com> - 2017-04-07 09:50 +0200
              Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-04-07 10:30 +0200
                Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Dave Young <dyoung@redhat.com> - 2017-04-07 10:50 +0200
          Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-04-07 09:50 +0200
            Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Dave Young <dyoung@redhat.com> - 2017-04-07 10:10 +0200
        Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has been set David Howells <dhowells@redhat.com> - 2017-04-07 09:20 +0200
          Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-04-07 09:50 +0200
            Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has been set David Howells <dhowells@redhat.com> - 2017-04-07 11:20 +0200
              Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has  been set Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-04-07 14:40 +0200
                Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has been set David Howells <dhowells@redhat.com> - 2017-04-10 15:30 +0200
  Re: [PATCH 00/24] Kernel lockdown "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2017-04-07 18:10 +0200
    Re: [PATCH 00/24] Kernel lockdown Justin Forbes <jmforbes@linuxtx.org> - 2017-04-07 18:40 +0200

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