Fuzzing: Add 4 fuzzers

Signed-off-by: AdamKorcz <adam@adalogics.com>

contrib/fuzz/cap_fuzzer.go

@@ -0,0 +1,27 @@
+// +build gofuzz
+
+/*
+   Copyright The containerd Authors.
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package fuzz
+
+import (
+	"bytes"
+
+	"github.com/containerd/containerd/pkg/cap"
+)
+
+func FuzzParseProcPIDStatus(data []byte) int {
+	_, _ = cap.ParseProcPIDStatus(bytes.NewReader(data))
+	return 1
+}