Matthew Garrett 29d3c1c8df kexec: Allow kexec_file() with appropriate IMA policy when locked down ... Systems in lockdown mode should block the kexec of untrusted kernels. For x86 and ARM we can ensure that a kernel is trustworthy by validating a PE signature, but this isn't possible on other architectures. On those platforms we can use IMA digital signatures instead. Add a function to determine whether IMA has or will verify signatures for a given event type, and if so permit kexec_file() even if the kernel is otherwise locked down. This is restricted to cases where CONFIG_INTEGRITY_TRUSTED_KEYRING is set in order to prevent an attacker from loading additional keys at runtime. Signed-off-by: Matthew Garrett <mjg59@google.com> Acked-by: Mimi Zohar <zohar@linux.ibm.com> Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: linux-integrity@vger.kernel.org Signed-off-by: James Morris <jmorris@namei.org>		2019-08-19 21:54:16 -07:00
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apparmor	apparmor: reset pos on failure to unpack for various functions	2019-06-18 16:04:16 -07:00
integrity	kexec: Allow kexec_file() with appropriate IMA policy when locked down	2019-08-19 21:54:16 -07:00
keys	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
loadpin	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
lockdown	lockdown: Lock down perf when in confidentiality mode	2019-08-19 21:54:16 -07:00
safesetid	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
selinux	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
smack	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
tomoyo	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
yama	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
commoncap.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
device_cgroup.c	device_cgroup: fix RCU imbalance in error case	2019-03-19 10:46:15 -07:00
inode.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
Kconfig	security: Add a static lockdown policy LSM	2019-08-19 21:54:15 -07:00
Kconfig.hardening	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
lsm_audit.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
Makefile	security: Add a static lockdown policy LSM	2019-08-19 21:54:15 -07:00
min_addr.c
security.c	security: Add a "locked down" LSM hook	2019-08-19 21:54:15 -07:00