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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-08 12:41:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-08 12:41:25 -0700
commitb793c005ceabf6db0b17494b0ec67ade6796bb34 (patch)
tree080c884f04254403ec9564742f591a9fd9b7e95a /init
parent6f0a2fc1feb19bd142961a39dc118e7e55418b3f (diff)
parent07f081fb5057b2ea98baeca3a47bf0eb33e94aa1 (diff)
downloadlinux-stericsson-b793c005ceabf6db0b17494b0ec67ade6796bb34.tar.gz
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris: "Highlights: - PKCS#7 support added to support signed kexec, also utilized for module signing. See comments in 3f1e1bea. ** NOTE: this requires linking against the OpenSSL library, which must be installed, e.g. the openssl-devel on Fedora ** - Smack - add IPv6 host labeling; ignore labels on kernel threads - support smack labeling mounts which use binary mount data - SELinux: - add ioctl whitelisting (see http://kernsec.org/files/lss2015/vanderstoep.pdf) - fix mprotect PROT_EXEC regression caused by mm change - Seccomp: - add ptrace options for suspend/resume" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (57 commits) PKCS#7: Add OIDs for sha224, sha284 and sha512 hash algos and use them Documentation/Changes: Now need OpenSSL devel packages for module signing scripts: add extract-cert and sign-file to .gitignore modsign: Handle signing key in source tree modsign: Use if_changed rule for extracting cert from module signing key Move certificate handling to its own directory sign-file: Fix warning about BIO_reset() return value PKCS#7: Add MODULE_LICENSE() to test module Smack - Fix build error with bringup unconfigured sign-file: Document dependency on OpenSSL devel libraries PKCS#7: Appropriately restrict authenticated attributes and content type KEYS: Add a name for PKEY_ID_PKCS7 PKCS#7: Improve and export the X.509 ASN.1 time object decoder modsign: Use extract-cert to process CONFIG_SYSTEM_TRUSTED_KEYS extract-cert: Cope with multiple X.509 certificates in a single file sign-file: Generate CMS message as signature instead of PKCS#7 PKCS#7: Support CMS messages also [RFC5652] X.509: Change recorded SKID & AKID to not include Subject or Issuer PKCS#7: Check content type and versions MAINTAINERS: The keyrings mailing list has moved ...
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig40
1 files changed, 21 insertions, 19 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 9cabd866b34b..02da9f1fd9df 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1765,17 +1765,23 @@ config MMAP_ALLOW_UNINITIALIZED
See Documentation/nommu-mmap.txt for more information.
-config SYSTEM_TRUSTED_KEYRING
- bool "Provide system-wide ring of trusted keys"
- depends on KEYS
+config SYSTEM_DATA_VERIFICATION
+ def_bool n
+ select SYSTEM_TRUSTED_KEYRING
+ select KEYS
+ select CRYPTO
+ select ASYMMETRIC_KEY_TYPE
+ select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
+ select PUBLIC_KEY_ALGO_RSA
+ select ASN1
+ select OID_REGISTRY
+ select X509_CERTIFICATE_PARSER
+ select PKCS7_MESSAGE_PARSER
help
- Provide a system keyring to which trusted keys can be added. Keys in
- the keyring are considered to be trusted. Keys may be added at will
- by the kernel from compiled-in data and from hardware key stores, but
- userspace may only add extra keys if those keys can be verified by
- keys already in the keyring.
-
- Keys in this keyring are used by module signature checking.
+ Provide PKCS#7 message verification using the contents of the system
+ trusted keyring to provide public keys. This then can be used for
+ module verification, kexec image verification and firmware blob
+ verification.
config PROFILING
bool "Profiling support"
@@ -1885,20 +1891,16 @@ config MODULE_SRCVERSION_ALL
config MODULE_SIG
bool "Module signature verification"
depends on MODULES
- select SYSTEM_TRUSTED_KEYRING
- select KEYS
- select CRYPTO
- select ASYMMETRIC_KEY_TYPE
- select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
- select PUBLIC_KEY_ALGO_RSA
- select ASN1
- select OID_REGISTRY
- select X509_CERTIFICATE_PARSER
+ select SYSTEM_DATA_VERIFICATION
help
Check modules for valid signatures upon load: the signature
is simply appended to the module. For more information see
Documentation/module-signing.txt.
+ Note that this option adds the OpenSSL development packages as a
+ kernel build dependency so that the signing tool can use its crypto
+ library.
+
!!!WARNING!!! If you enable this option, you MUST make sure that the
module DOES NOT get stripped after being signed. This includes the
debuginfo strip done by some packagers (such as rpmbuild) and