From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Thu, 22 May 2014 18:02:23 +0000 (-0400)
Subject: KEYS: special dot prefixed keyring name bug fix
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~151^2~12^2~1^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4e3b8d79a5c6d40f4a9703abf7fe3abcc6c3b8d;p=pandora-kernel.git

KEYS: special dot prefixed keyring name bug fix

Dot prefixed keyring names are supposed to be reserved for the
kernel, but add_key() calls key_get_type_from_user(), which
incorrectly verifies the 'type' field, not the 'description' field.
This patch verifies the 'description' field isn't dot prefixed,
when creating a new keyring, and removes the dot prefix test in
key_get_type_from_user().

Changelog v6:
- whitespace and other cleanup

Changelog v5:
- Only prevent userspace from creating a dot prefixed keyring, not
  regular keys  - Dmitry

Reported-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
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