linux-toradex.git/security/integrity, branch v4.11-rc1

sched/headers: Prepare to remove the include from

2017-03-02T07:42:40+00:00

Update files that depend on the magic.h inclusion.

Acked-by: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

ima: allow to check MAY_APPEND

2017-01-27T19:17:21+00:00

Otherwise some mask and inmask tokens with MAY_APPEND flag may not work
as expected.

Signed-off-by: Lans Zhang 
Signed-off-by: Mimi Zohar

ima: fix ima_d_path() possible race with rename

2017-01-27T19:16:02+00:00

On failure to return a pathname from ima_d_path(), a pointer to
dname is returned, which is subsequently used in the IMA measurement
list, the IMA audit records, and other audit logging.  Saving the
pointer to dname for later use has the potential to race with rename.

Intead of returning a pointer to dname on failure, this patch returns
a pointer to a copy of the filename.

Reported-by: Al Viro 
Signed-off-by: Mimi Zohar 
Cc: stable@vger.kernel.org

ima: platform-independent hash value

2016-12-20T17:48:46+00:00

For remote attestion it is important for the ima measurement values to
be platform-independent.  Therefore integer fields to be hashed must be
converted to canonical format.

Link: http://lkml.kernel.org/r/1480554346-29071-11-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Andreas Steffen 
Signed-off-by: Mimi Zohar 
Cc: Thiago Jung Bauermann 
Cc: "Eric W. Biederman" 
Cc: Dmitry Kasatkin 
Cc: Josh Sklar 
Cc: Dave Young 
Cc: Vivek Goyal 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Stewart Smith 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ima: define a canonical binary_runtime_measurements list format

2016-12-20T17:48:45+00:00

The IMA binary_runtime_measurements list is currently in platform native
format.

To allow restoring a measurement list carried across kexec with a
different endianness than the targeted kernel, this patch defines
little-endian as the canonical format.  For big endian systems wanting
to save/restore the measurement list from a system with a different
endianness, a new boot command line parameter named "ima_canonical_fmt"
is defined.

Considerations: use of the "ima_canonical_fmt" boot command line option
will break existing userspace applications on big endian systems
expecting the binary_runtime_measurements list to be in platform native
format.

Link: http://lkml.kernel.org/r/1480554346-29071-10-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Mimi Zohar 
Acked-by: Dmitry Kasatkin 
Cc: Thiago Jung Bauermann 
Cc: "Eric W. Biederman" 
Cc: Andreas Steffen 
Cc: Josh Sklar 
Cc: Dave Young 
Cc: Vivek Goyal 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Stewart Smith 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ima: support restoring multiple template formats

2016-12-20T17:48:45+00:00

The configured IMA measurement list template format can be replaced at
runtime on the boot command line, including a custom template format.
This patch adds support for restoring a measuremement list containing
multiple builtin/custom template formats.

Link: http://lkml.kernel.org/r/1480554346-29071-9-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Mimi Zohar 
Acked-by: Dmitry Kasatkin 
Cc: Thiago Jung Bauermann 
Cc: "Eric W. Biederman" 
Cc: Andreas Steffen 
Cc: Josh Sklar 
Cc: Dave Young 
Cc: Vivek Goyal 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Stewart Smith 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ima: store the builtin/custom template definitions in a list

2016-12-20T17:48:45+00:00

The builtin and single custom templates are currently stored in an
array.  In preparation for being able to restore a measurement list
containing multiple builtin/custom templates, this patch stores the
builtin and custom templates as a linked list.  This will permit
defining more than one custom template per boot.

Link: http://lkml.kernel.org/r/1480554346-29071-8-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Mimi Zohar 
Acked-by: Dmitry Kasatkin 
Cc: Thiago Jung Bauermann 
Cc: "Eric W. Biederman" 
Cc: Andreas Steffen 
Cc: Josh Sklar 
Cc: Dave Young 
Cc: Vivek Goyal 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Stewart Smith 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ima: on soft reboot, save the measurement list

2016-12-20T17:48:44+00:00

The TPM PCRs are only reset on a hard reboot.  In order to validate a
TPM's quote after a soft reboot (eg.  kexec -e), the IMA measurement
list of the running kernel must be saved and restored on boot.

This patch uses the kexec buffer passing mechanism to pass the
serialized IMA binary_runtime_measurements to the next kernel.

Link: http://lkml.kernel.org/r/1480554346-29071-7-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Thiago Jung Bauermann 
Signed-off-by: Mimi Zohar 
Acked-by: "Eric W. Biederman" 
Acked-by: Dmitry Kasatkin 
Cc: Andreas Steffen 
Cc: Josh Sklar 
Cc: Dave Young 
Cc: Vivek Goyal 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Stewart Smith 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ima: maintain memory size needed for serializing the measurement list

2016-12-20T17:48:44+00:00

In preparation for serializing the binary_runtime_measurements, this
patch maintains the amount of memory required.

Link: http://lkml.kernel.org/r/1480554346-29071-5-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Mimi Zohar 
Acked-by: Dmitry Kasatkin 
Cc: Thiago Jung Bauermann 
Cc: "Eric W. Biederman" 
Cc: Andreas Steffen 
Cc: Josh Sklar 
Cc: Dave Young 
Cc: Vivek Goyal 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Stewart Smith 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ima: permit duplicate measurement list entries

2016-12-20T17:48:43+00:00

Measurements carried across kexec need to be added to the IMA
measurement list, but should not prevent measurements of the newly
booted kernel from being added to the measurement list.  This patch adds
support for allowing duplicate measurements.

The "boot_aggregate" measurement entry is the delimiter between soft
boots.

Link: http://lkml.kernel.org/r/1480554346-29071-4-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Mimi Zohar 
Acked-by: Dmitry Kasatkin 
Cc: Thiago Jung Bauermann 
Cc: "Eric W. Biederman" 
Cc: Andreas Steffen 
Cc: Josh Sklar 
Cc: Dave Young 
Cc: Vivek Goyal 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Stewart Smith 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds