fix: remove usage of unsafe string in label adapter unmarshal (grafana#14216)

Author: ashwanthgoli

go.mod

@@ -124,7 +124,7 @@ require (
 	github.com/fsnotify/fsnotify v1.7.0
 	github.com/gogo/googleapis v1.4.1
 	github.com/grafana/jsonparser v0.0.0-20240425183733-ea80629e1a32
-	github.com/grafana/loki/pkg/push v0.0.0-20231124142027-e52380921608
+	github.com/grafana/loki/pkg/push v0.0.0-20240923094301-8ebb2b5300f0
 	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/hashicorp/raft v1.7.1
 	github.com/hashicorp/raft-wal v0.4.1

pkg/push/types.go

@@ -571,8 +571,6 @@ func (m *Entry) Unmarshal(dAtA []byte) error {
 }
 
 // Unmarshal a LabelAdapter, implements proto.Unmarshaller.
-// NB this is a copy of the autogenerated code to unmarshal a LabelPair,
-// with the byte copying replaced with a yoloString.
 func (m *LabelAdapter) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
@@ -632,7 +630,7 @@ func (m *LabelAdapter) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.Name = yoloString(dAtA[iNdEx:postIndex])
+			m.Name = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
 		case 2:
 			if wireType != 2 {
@@ -664,7 +662,7 @@ func (m *LabelAdapter) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.Value = yoloString(dAtA[iNdEx:postIndex])
+			m.Value = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
 		default:
 			iNdEx = preIndex

vendor/github.com/grafana/loki/pkg/push/types.go

@@ -1034,7 +1034,7 @@ github.com/grafana/gomemcache/memcache
 # github.com/grafana/jsonparser v0.0.0-20240425183733-ea80629e1a32
 ## explicit; go 1.13
 github.com/grafana/jsonparser
-# github.com/grafana/loki/pkg/push v0.0.0-20231124142027-e52380921608 => ./pkg/push
+# github.com/grafana/loki/pkg/push v0.0.0-20240923094301-8ebb2b5300f0 => ./pkg/push
 ## explicit; go 1.19
 github.com/grafana/loki/pkg/push
 # github.com/grafana/pyroscope-go/godeltaprof v0.1.8