diff --git a/weed/filer/filechunk_manifest_resolve_test.go b/weed/filer/filechunk_manifest_resolve_test.go
index 0daf1f274..8b1902f8b 100644
--- a/weed/filer/filechunk_manifest_resolve_test.go
+++ b/weed/filer/filechunk_manifest_resolve_test.go
@@ -402,6 +402,11 @@ func TestResolveChunkManifestKeepsRealErrorAfterInternalCancellation(t *testing.
 			<-ctx.Done()
 			return nil, earlyErr
 		case "late":
+			// The assertion is specifically about preserving the earlier input's
+			// real error after a later input cancels the batch. Do not let the
+			// later lookup cancel the batch before the earlier lookup has entered;
+			// that scheduling race is especially visible on slower 32-bit CI.
+			<-earlyStarted
 			close(lateStarted)
 			return nil, lateErr
 		default:
diff --git a/weed/iam/helpers.go b/weed/iam/helpers.go
index c335f8759..0e8016433 100644
--- a/weed/iam/helpers.go
+++ b/weed/iam/helpers.go
@@ -137,7 +137,7 @@ var baseS3ActionMap = map[string]string{
 	"GetBucketNotification":            s3_constants.ACTION_READ,
 	"PutBucketNotification":            s3_constants.ACTION_WRITE,
 	"GetBucketObjectLockConfiguration": s3_constants.ACTION_READ,
-	"PutBucketObjectLockConfiguration": s3_constants.ACTION_WRITE,
+	"PutBucketObjectLockConfiguration": s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG,
 	// Multipart upload operations
 	"CreateMultipartUpload":   s3_constants.ACTION_WRITE,
 	"UploadPart":              s3_constants.ACTION_WRITE,
@@ -191,6 +191,8 @@ func MapToIdentitiesAction(action string) string {
 		return StatementActionTagging
 	case s3_constants.ACTION_DELETE_BUCKET:
 		return StatementActionDelete
+	case s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG:
+		return "PutBucketObjectLockConfiguration"
 	case s3_constants.ACTION_PUT_BUCKET_POLICY:
 		return "PutBucketPolicy"
 	case s3_constants.ACTION_DELETE_BUCKET_POLICY:
diff --git a/weed/s3api/s3api_object_lock_authz_test.go b/weed/s3api/s3api_object_lock_authz_test.go
new file mode 100644
index 000000000..1f287b051
--- /dev/null
+++ b/weed/s3api/s3api_object_lock_authz_test.go
@@ -0,0 +1,57 @@
+package s3api
+
+import (
+	"testing"
+
+	iamlib "github.com/seaweedfs/seaweedfs/weed/iam"
+	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
+)
+
+func TestPutObjectLockConfigurationUsesDedicatedAction(t *testing.T) {
+	bindings := handlerActionBindings(t)
+	if got := bindings["PutObjectLockConfigurationHandler"]; got != "ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG" {
+		t.Fatalf("PutObjectLockConfigurationHandler is gated on %s, want ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG", got)
+	}
+}
+
+func TestObjectWriteDoesNotAllowPutObjectLockConfiguration(t *testing.T) {
+	objectWriter := &Identity{
+		Name:    "object-writer",
+		Actions: []Action{Action(s3_constants.ACTION_WRITE + ":test-bucket")},
+	}
+
+	if !objectWriter.CanDo(s3_constants.ACTION_WRITE, "test-bucket", "some/key") {
+		t.Fatal("precondition failed: the identity should be able to write objects")
+	}
+	if objectWriter.CanDo(s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG, "test-bucket", "") {
+		t.Fatal("an object writer was allowed to change the bucket Object Lock configuration")
+	}
+
+	lockManager := &Identity{
+		Name: "lock-manager",
+		Actions: []Action{
+			Action(s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG + ":test-bucket"),
+		},
+	}
+	if !lockManager.CanDo(s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG, "test-bucket", "") {
+		t.Fatal("an explicitly delegated identity was denied permission to change the bucket Object Lock configuration")
+	}
+}
+
+func TestPutObjectLockConfigurationActionRoundTrips(t *testing.T) {
+	for _, policyAction := range []string{
+		"s3:PutBucketObjectLockConfiguration",
+		"PutBucketObjectLockConfiguration",
+	} {
+		if got := iamlib.MapToStatementAction(policyAction); got != s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG {
+			t.Errorf("MapToStatementAction(%q) = %q, want %q", policyAction, got, s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG)
+		}
+	}
+
+	if got := iamlib.MapToIdentitiesAction(s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG); got != "PutBucketObjectLockConfiguration" {
+		t.Errorf("MapToIdentitiesAction(%q) = %q, want PutBucketObjectLockConfiguration", s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG, got)
+	}
+	if got := mapBaseActionToS3Format(s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG); got != s3_constants.S3_ACTION_PUT_BUCKET_OBJECT_LOCK {
+		t.Errorf("mapBaseActionToS3Format(%q) = %q, want %q", s3_constants.ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG, got, s3_constants.S3_ACTION_PUT_BUCKET_OBJECT_LOCK)
+	}
+}
diff --git a/weed/s3api/s3api_server.go b/weed/s3api/s3api_server.go
index b93c7004d..c8c3cd328 100644
--- a/weed/s3api/s3api_server.go
+++ b/weed/s3api/s3api_server.go
@@ -965,7 +965,7 @@ func (s3a *S3ApiServer) registerRouter(router *mux.Router) {
 
 		// GetObjectLockConfiguration / PutObjectLockConfiguration (bucket-level operations)
 		bucket.Methods(http.MethodGet).HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetObjectLockConfigurationHandler, ACTION_READ)), "GET")).Queries("object-lock", "")
-		bucket.Methods(http.MethodPut).HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectLockConfigurationHandler, ACTION_WRITE)), "PUT")).Queries("object-lock", "")
+		bucket.Methods(http.MethodPut).HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectLockConfigurationHandler, ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG)), "PUT")).Queries("object-lock", "")
 
 		// GetBucketTagging
 		bucket.Methods(http.MethodGet).HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketTaggingHandler, ACTION_TAGGING)), "GET")).Queries("tagging", "")