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From: David Howells <dhowells@redhat.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: "Schofield, Alison  <alison.schofield@intel.com>,
	Kees Cook <keescook@chromium.org>,
	linux-nvdimm" <linux-nvdimm@lists.01.org>,
	Eric Biggers <ebiggers3@gmail.com>,
	dhowells@redhat.com, keyrings@vger.kernel.org
Subject: Re: [PATCH v8 02/12] libnvdimm: create keyring to store security keys
Date: Mon, 24 Sep 2018 22:04:47 +0100	[thread overview]
Message-ID: <29624.1537823087@warthog.procyon.org.uk> (raw)
In-Reply-To: <CAPcyv4j02Ts5J8CFHFVVioBYjHwr7cbsqrz3yTCm4Yoxf1CTOg@mail.gmail.com>

Dan Williams <dan.j.williams@intel.com> wrote:

> I think you want to use prepare_kernel_cred(), not export init_cred.

That only works if the searching is done with the creds generated by
prepare_kernel_cred().  He probably does want init_cred, or at least
current_cred() if module loading overrides the creds with init_cred whilst
initialising the module.

David
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm

WARNING: multiple messages have this Message-ID (diff)
From: David Howells <dhowells@redhat.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: "Schofield, Alison  <alison.schofield@intel.com>,
	Kees Cook <keescook@chromium.org>,
	linux-nvdimm" <linux-nvdimm@lists.01.org>,
	Eric Biggers <ebiggers3@gmail.com>,
	dhowells@redhat.com, keyrings@vger.kernel.org
Subject: Re: [PATCH v8 02/12] libnvdimm: create keyring to store security keys
Date: Mon, 24 Sep 2018 21:04:47 +0000	[thread overview]
Message-ID: <29624.1537823087@warthog.procyon.org.uk> (raw)
In-Reply-To: <CAPcyv4j02Ts5J8CFHFVVioBYjHwr7cbsqrz3yTCm4Yoxf1CTOg@mail.gmail.com>

Dan Williams <dan.j.williams@intel.com> wrote:

> I think you want to use prepare_kernel_cred(), not export init_cred.

That only works if the searching is done with the creds generated by
prepare_kernel_cred().  He probably does want init_cred, or at least
current_cred() if module loading overrides the creds with init_cred whilst
initialising the module.

David

  parent reply	other threads:[~2018-09-24 21:04 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-28 22:47 [PATCH v8 00/12] Adding security support for nvdimm Dave Jiang
2018-08-28 22:47 ` Dave Jiang
2018-08-28 22:47 ` [PATCH v8 01/12] nfit: add support for Intel DSM 1.7 commands Dave Jiang
2018-08-28 22:47   ` Dave Jiang
2018-08-28 22:47 ` [PATCH v8 02/12] libnvdimm: create keyring to store security keys Dave Jiang
2018-08-28 22:47   ` Dave Jiang
2018-09-22  0:19   ` Dan Williams
2018-09-22  0:19     ` Dan Williams
2018-09-24 21:04   ` David Howells [this message]
2018-09-24 21:04     ` David Howells
2018-09-24 21:12     ` Dave Jiang
2018-09-24 21:12       ` Dave Jiang
2018-08-28 22:47 ` [PATCH v8 03/12] nfit/libnvdimm: store dimm id as a member to struct nvdimm Dave Jiang
2018-08-28 22:47   ` Dave Jiang
2018-08-28 22:47 ` [PATCH v8 04/12] keys: export lookup_user_key to external users Dave Jiang
2018-08-28 22:47   ` Dave Jiang
2018-09-21 21:59   ` Dan Williams
2018-09-21 21:59     ` Dan Williams
2018-09-21 22:02     ` Dave Jiang
2018-09-21 22:02       ` Dave Jiang
2018-09-21 23:05   ` David Howells
2018-09-21 23:05     ` David Howells
2018-08-28 22:47 ` [PATCH v8 05/12] nfit/libnvdimm: add unlock of nvdimm support for Intel DIMMs Dave Jiang
2018-08-28 22:47   ` Dave Jiang
2018-09-23  0:10   ` Dan Williams
2018-09-23  0:10     ` Dan Williams
2018-08-28 22:47 ` [PATCH v8 06/12] nfit/libnvdimm: add set passphrase support for Intel nvdimms Dave Jiang
2018-08-28 22:47 ` [PATCH v8 07/12] nfit/libnvdimm: add disable passphrase support to Intel nvdimm Dave Jiang
2018-08-28 22:47   ` Dave Jiang
2018-08-28 22:48 ` [PATCH v8 08/12] nfit/libnvdimm: add freeze security " Dave Jiang
2018-08-28 22:48   ` Dave Jiang
2018-08-28 22:48 ` [PATCH v8 09/12] nfit/libnvdimm: add support for issue secure erase DSM " Dave Jiang
2018-08-28 22:48   ` Dave Jiang
2018-08-28 22:48 ` [PATCH v8 10/12] nfit_test: add context to dimm_dev for nfit_test Dave Jiang
2018-08-28 22:48   ` Dave Jiang
2018-08-28 22:48 ` [PATCH v8 11/12] nfit_test: add test support for Intel nvdimm security DSMs Dave Jiang
2018-08-28 22:48   ` Dave Jiang
2018-08-28 22:48 ` [PATCH v8 12/12] libnvdimm: add documentation for nvdimm security support Dave Jiang
2018-08-28 22:48   ` Dave Jiang
2018-09-21 23:07 ` [PATCH v8 02/12] libnvdimm: create keyring to store security keys David Howells
2018-09-21 23:07   ` David Howells
2018-09-21 23:20 ` [PATCH v8 05/12] nfit/libnvdimm: add unlock of nvdimm support for Intel DIMMs David Howells
2018-09-21 23:20   ` David Howells
2018-09-21 23:27   ` Dave Jiang
2018-09-21 23:27     ` Dave Jiang
2018-09-21 23:51     ` Dan Williams
2018-09-21 23:51       ` Dan Williams
2018-09-21 23:57 ` [PATCH v8 06/12] nfit/libnvdimm: add set passphrase support for Intel nvdimms David Howells
2018-09-21 23:57   ` David Howells
2018-09-22  0:25   ` Dave Jiang
2018-09-22  0:25     ` Dave Jiang
2018-09-22  1:26     ` Dan Williams
2018-09-22  1:26       ` Dan Williams
2018-09-22  0:01 ` [PATCH v8 04/12] keys: export lookup_user_key to external users David Howells
2018-09-22  0:01   ` David Howells
2018-09-24 21:02 ` [PATCH v8 02/12] libnvdimm: create keyring to store security keys David Howells
2018-09-24 21:02   ` David Howells
2018-09-24 21:15   ` Dave Jiang
2018-09-24 21:15     ` Dave Jiang

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