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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-07 16:53:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-07 16:53:59 -0700
commitf8cf2f16a7c95acce497bfafa90e7c6d8397d653 (patch)
tree6451abed2025593015cde6fdc6edd54844eb15d3 /security/security.c
parentMerge branch 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security (diff)
parentima: Fallback to the builtin hash algorithm (diff)
downloadlinux-dev-f8cf2f16a7c95acce497bfafa90e7c6d8397d653.tar.xz
linux-dev-f8cf2f16a7c95acce497bfafa90e7c6d8397d653.zip
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull integrity updates from James Morris: "A mixture of bug fixes, code cleanup, and continues to close IMA-measurement, IMA-appraisal, and IMA-audit gaps. Also note the addition of a new cred_getsecid LSM hook by Matthew Garrett: For IMA purposes, we want to be able to obtain the prepared secid in the bprm structure before the credentials are committed. Add a cred_getsecid hook that makes this possible. which is used by a new CREDS_CHECK target in IMA: In ima_bprm_check(), check with both the existing process credentials and the credentials that will be committed when the new process is started. This will not change behaviour unless the system policy is extended to include CREDS_CHECK targets - BPRM_CHECK will continue to check the same credentials that it did previously" * 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: ima: Fallback to the builtin hash algorithm ima: Add smackfs to the default appraise/measure list evm: check for remount ro in progress before writing ima: Improvements in ima_appraise_measurement() ima: Simplify ima_eventsig_init() integrity: Remove unused macro IMA_ACTION_RULE_FLAGS ima: drop vla in ima_audit_measurement() ima: Fix Kconfig to select TPM 2.0 CRB interface evm: Constify *integrity_status_msg[] evm: Move evm_hmac and evm_hash from evm_main.c to evm_crypto.c fuse: define the filesystem as untrusted ima: fail signature verification based on policy ima: clear IMA_HASH ima: re-evaluate files on privileged mounted filesystems ima: fail file signature verification on non-init mounted filesystems IMA: Support using new creds in appraisal policy security: Add a cred_getsecid hook
Diffstat (limited to 'security/security.c')
-rw-r--r--security/security.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/security/security.c b/security/security.c
index 7301902a8721..d2a84cda7e8d 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1005,6 +1005,13 @@ void security_transfer_creds(struct cred *new, const struct cred *old)
call_void_hook(cred_transfer, new, old);
}
+void security_cred_getsecid(const struct cred *c, u32 *secid)
+{
+ *secid = 0;
+ call_void_hook(cred_getsecid, c, secid);
+}
+EXPORT_SYMBOL(security_cred_getsecid);
+
int security_kernel_act_as(struct cred *new, u32 secid)
{
return call_int_hook(kernel_act_as, 0, new, secid);