diff --git a/pkg/backend/aio_test.go b/pkg/backend/aio_test.go
index 216f86f3..a48cd949 100644
--- a/pkg/backend/aio_test.go
+++ b/pkg/backend/aio_test.go
@@ -598,6 +598,14 @@ func TestBackEnd_GetAioController(t *testing.T) {
 			fmt.Sprintf("unable to find key %v", "unknown-id"),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests
diff --git a/pkg/backend/null_test.go b/pkg/backend/null_test.go
index c13f291d..84d9f5fd 100644
--- a/pkg/backend/null_test.go
+++ b/pkg/backend/null_test.go
@@ -605,6 +605,14 @@ func TestBackEnd_GetNullDebug(t *testing.T) {
 			fmt.Sprintf("unable to find key %v", "unknown-id"),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests
diff --git a/pkg/backend/nvme_controller_test.go b/pkg/backend/nvme_controller_test.go
index 89cc27b0..10c2b96c 100644
--- a/pkg/backend/nvme_controller_test.go
+++ b/pkg/backend/nvme_controller_test.go
@@ -319,6 +319,12 @@ func TestBackEnd_GetNVMfRemoteController(t *testing.T) {
 			codes.NotFound,
 			fmt.Sprintf("unable to find key %v", "unknown-id"),
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+		},
 	}
 
 	// run tests
diff --git a/pkg/backend/nvme_path_test.go b/pkg/backend/nvme_path_test.go
index d134019d..deb38174 100644
--- a/pkg/backend/nvme_path_test.go
+++ b/pkg/backend/nvme_path_test.go
@@ -740,6 +740,14 @@ func TestBackEnd_GetNVMfPath(t *testing.T) {
 			fmt.Sprintf("unable to find key %v", "unknown-id"),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests
diff --git a/pkg/frontend/blk_test.go b/pkg/frontend/blk_test.go
index 0f671a84..9fbf93a1 100644
--- a/pkg/frontend/blk_test.go
+++ b/pkg/frontend/blk_test.go
@@ -459,6 +459,14 @@ func TestFrontEnd_GetVirtioBlk(t *testing.T) {
 			fmt.Sprintf("unable to find key %v", "unknown-id"),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests
diff --git a/pkg/frontend/nvme_controller_test.go b/pkg/frontend/nvme_controller_test.go
index ea5dcdee..b02e5ca8 100644
--- a/pkg/frontend/nvme_controller_test.go
+++ b/pkg/frontend/nvme_controller_test.go
@@ -559,6 +559,14 @@ func TestFrontEnd_GetNvmeController(t *testing.T) {
 			fmt.Sprintf("unable to find key %s", "unknown-controller-id"),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests
diff --git a/pkg/frontend/nvme_namespace_test.go b/pkg/frontend/nvme_namespace_test.go
index 15f998ed..55960c63 100644
--- a/pkg/frontend/nvme_namespace_test.go
+++ b/pkg/frontend/nvme_namespace_test.go
@@ -706,6 +706,14 @@ func TestFrontEnd_GetNvmeNamespace(t *testing.T) {
 			fmt.Sprintf("unable to find key %v", "unknown-namespace-id"),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests
diff --git a/pkg/frontend/nvme_subsystem_test.go b/pkg/frontend/nvme_subsystem_test.go
index dc9891bc..501aa17e 100644
--- a/pkg/frontend/nvme_subsystem_test.go
+++ b/pkg/frontend/nvme_subsystem_test.go
@@ -643,6 +643,14 @@ func TestFrontEnd_GetNvmeSubsystem(t *testing.T) {
 			fmt.Sprintf("unable to find key %v", "unknown-subsystem-id"),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests
diff --git a/pkg/middleend/encryption_test.go b/pkg/middleend/encryption_test.go
index 8c749d1d..3a62c990 100644
--- a/pkg/middleend/encryption_test.go
+++ b/pkg/middleend/encryption_test.go
@@ -896,6 +896,14 @@ func TestMiddleEnd_GetEncryptedVolume(t *testing.T) {
 			fmt.Sprintf("unable to find key %v", server.ResourceIDToVolumeName("unknown-id")),
 			false,
 		},
+		"malformed name": {
+			"-ABC-DEF",
+			nil,
+			[]string{""},
+			codes.Unknown,
+			fmt.Sprintf("segment '%s': not a valid DNS name", "-ABC-DEF"),
+			false,
+		},
 	}
 
 	// run tests