]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ima: on soft reboot, save the measurement list
authorMimi Zohar <zohar@linux.vnet.ibm.com>
Tue, 20 Dec 2016 00:22:48 +0000 (16:22 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 20 Dec 2016 17:48:44 +0000 (09:48 -0800)
commit7b8589cc29e7c35dcfd2d5138979f17b48f90110
tree034068b5b20ee7e55247197c5df5d94e6aeadee6
parentab6b1d1fc4aae6b8bd6fb1422405568094c9b40f
ima: on soft reboot, save the measurement list

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 <bauerman@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
Cc: Andreas Steffen <andreas.steffen@strongswan.org>
Cc: Josh Sklar <sklar@linux.vnet.ibm.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/ima.h
kernel/kexec_file.c
security/integrity/ima/ima.h
security/integrity/ima/ima_fs.c
security/integrity/ima/ima_kexec.c