diff options
| -rw-r--r-- | security/integrity/evm/evm_main.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c index 9685af330de5..b392fe614738 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -162,9 +162,14 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry, (const char *)xattr_data, xattr_len, calc.digest, sizeof(calc.digest)); if (!rc) { - /* we probably want to replace rsa with hmac here */ - evm_update_evmxattr(dentry, xattr_name, xattr_value, - xattr_value_len); + /* Replace RSA with HMAC if not mounted readonly and + * not immutable + */ + if (!IS_RDONLY(dentry->d_inode) && + !IS_IMMUTABLE(dentry->d_inode)) + evm_update_evmxattr(dentry, xattr_name, + xattr_value, + xattr_value_len); } break; default: |