Add fuzz test of packet reader

Author: twiss

openpgp/packet/fuzz_test.go

@@ -0,0 +1,16 @@
+//go:build go1.18
+// +build go1.18
+
+package packet
+
+import (
+	"bytes"
+	"testing"
+)
+
+func FuzzPackets(f *testing.F) {
+	f.Add([]byte("\x980\x040000\x16\t+\x06\x01\x04\x01\xdaG\x0f\x01\x00\x00"))
+	f.Fuzz(func(t *testing.T, data []byte) {
+		_, _ = Read(bytes.NewReader(data))
+	})
+}