diff options
Diffstat (limited to 'security/integrity/evm')
| -rw-r--r-- | security/integrity/evm/Kconfig | 8 | ||||
| -rw-r--r-- | security/integrity/evm/evm_main.c | 17 |
2 files changed, 11 insertions, 14 deletions
diff --git a/security/integrity/evm/Kconfig b/security/integrity/evm/Kconfig index d606f3d12d6b..df586fa00ef1 100644 --- a/security/integrity/evm/Kconfig +++ b/security/integrity/evm/Kconfig @@ -1,6 +1,5 @@ config EVM boolean "EVM support" - depends on SECURITY select KEYS select ENCRYPTED_KEYS select CRYPTO_HMAC @@ -12,10 +11,6 @@ config EVM If you are unsure how to answer this question, answer N. -if EVM - -menu "EVM options" - config EVM_ATTR_FSUUID bool "FSUUID (version 2)" default y @@ -47,6 +42,3 @@ config EVM_EXTRA_SMACK_XATTRS additional info to the calculation, requires existing EVM labeled file systems to be relabeled. -endmenu - -endif diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c index 3bcb80df4d01..9685af330de5 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -126,14 +126,15 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry, rc = vfs_getxattr_alloc(dentry, XATTR_NAME_EVM, (char **)&xattr_data, 0, GFP_NOFS); if (rc <= 0) { - if (rc == 0) - evm_status = INTEGRITY_FAIL; /* empty */ - else if (rc == -ENODATA) { + evm_status = INTEGRITY_FAIL; + if (rc == -ENODATA) { rc = evm_find_protected_xattrs(dentry); if (rc > 0) evm_status = INTEGRITY_NOLABEL; else if (rc == 0) evm_status = INTEGRITY_NOXATTRS; /* new file */ + } else if (rc == -EOPNOTSUPP) { + evm_status = INTEGRITY_UNKNOWN; } goto out; } @@ -284,6 +285,13 @@ static int evm_protect_xattr(struct dentry *dentry, const char *xattr_name, goto out; } evm_status = evm_verify_current_integrity(dentry); + if (evm_status == INTEGRITY_NOXATTRS) { + struct integrity_iint_cache *iint; + + iint = integrity_iint_find(dentry->d_inode); + if (iint && (iint->flags & IMA_NEW_FILE)) + return 0; + } out: if (evm_status != INTEGRITY_PASS) integrity_audit_msg(AUDIT_INTEGRITY_METADATA, dentry->d_inode, @@ -352,7 +360,6 @@ void evm_inode_post_setxattr(struct dentry *dentry, const char *xattr_name, return; evm_update_evmxattr(dentry, xattr_name, xattr_value, xattr_value_len); - return; } /** @@ -372,7 +379,6 @@ void evm_inode_post_removexattr(struct dentry *dentry, const char *xattr_name) mutex_lock(&inode->i_mutex); evm_update_evmxattr(dentry, xattr_name, NULL, 0); mutex_unlock(&inode->i_mutex); - return; } /** @@ -414,7 +420,6 @@ void evm_inode_post_setattr(struct dentry *dentry, int ia_valid) if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID)) evm_update_evmxattr(dentry, NULL, NULL, 0); - return; } /* |