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Diffstat (limited to 'security/integrity/evm/evm_main.c')
-rw-r--r--security/integrity/evm/evm_main.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index a8d502827270..9ea9c19a545c 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -30,11 +30,9 @@
int evm_initialized;
-static char *integrity_status_msg[] = {
+static const char * const integrity_status_msg[] = {
"pass", "pass_immutable", "fail", "no_label", "no_xattrs", "unknown"
};
-char *evm_hmac = "hmac(sha1)";
-char *evm_hash = "sha1";
int evm_hmac_attrs;
char *evm_config_xattrnames[] = {
@@ -126,6 +124,7 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
struct evm_ima_xattr_data *xattr_data = NULL;
struct evm_ima_xattr_data calc;
enum integrity_status evm_status = INTEGRITY_PASS;
+ struct inode *inode;
int rc, xattr_len;
if (iint && (iint->evm_status == INTEGRITY_PASS ||
@@ -180,12 +179,15 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
(const char *)xattr_data, xattr_len,
calc.digest, sizeof(calc.digest));
if (!rc) {
+ inode = d_backing_inode(dentry);
+
if (xattr_data->type == EVM_XATTR_PORTABLE_DIGSIG) {
if (iint)
iint->flags |= EVM_IMMUTABLE_DIGSIG;
evm_status = INTEGRITY_PASS_IMMUTABLE;
- } else if (!IS_RDONLY(d_backing_inode(dentry)) &&
- !IS_IMMUTABLE(d_backing_inode(dentry))) {
+ } else if (!IS_RDONLY(inode) &&
+ !(inode->i_sb->s_readonly_remount) &&
+ !IS_IMMUTABLE(inode)) {
evm_update_evmxattr(dentry, xattr_name,
xattr_value,
xattr_value_len);