diff --git a/internal/fastwalk/fastwalk_unix.go b/internal/fastwalk/fastwalk_unix.go
index ce38fdcf83..5901a8f616 100644
--- a/internal/fastwalk/fastwalk_unix.go
+++ b/internal/fastwalk/fastwalk_unix.go
@@ -76,8 +76,9 @@ func readDir(dirName string, fn func(dirName, entName string, typ os.FileMode) e
 }
 
 func parseDirEnt(buf []byte) (consumed int, name string, typ os.FileMode) {
-	// golang.org/issue/15653
-	dirent := (*syscall.Dirent)(unsafe.Pointer(&buf[0]))
+	// golang.org/issue/37269
+	dirent := &syscall.Dirent{}
+	copy((*[unsafe.Sizeof(syscall.Dirent{})]byte)(unsafe.Pointer(dirent))[:], buf)
 	if v := unsafe.Offsetof(dirent.Reclen) + unsafe.Sizeof(dirent.Reclen); uintptr(len(buf)) < v {
 		panic(fmt.Sprintf("buf size of %d smaller than dirent header size %d", len(buf), v))
 	}