moby: add more fuzzers (#8889)

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

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

projects/moby/Dockerfile

@@ -17,4 +17,4 @@
 FROM gcr.io/oss-fuzz-base/base-builder-go
 RUN git clone --depth 1 https://github.com/moby/moby
 WORKDIR moby
-COPY build.sh mounts_fuzzer.go $SRC/
+COPY build.sh archive_fuzzers.go tailfile_fuzzer.go jsonfilelog_fuzzer.go mounts_fuzzer.go $SRC/

projects/moby/archive_fuzzers.go

@@ -0,0 +1,57 @@
+// Copyright 2022 Google LLC. All Rights Reserved.
+//
+// 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 archive
+
+import (
+	"bytes"
+	fuzz "github.com/AdaLogics/go-fuzz-headers"
+	"os"
+)
+
+func FuzzDecompressStream(data []byte) int {
+	r := bytes.NewReader(data)
+	_, _ = DecompressStream(r)
+	return 1
+}
+
+func FuzzUntar(data []byte) int {
+	f := fuzz.NewConsumer(data)
+	tarBytes, err := f.TarBytes()
+	if err != nil {
+		return 0
+	}
+	options := &TarOptions{}
+	err = f.GenerateStruct(options)
+	if err != nil {
+		return 0
+	}
+	defer os.Remove("testdir")
+	err = os.Mkdir("testdir", 0750)
+	if err != nil && !os.IsExist(err) {
+		return 0
+	}
+	Untar(bytes.NewReader(tarBytes), "testdir", options)
+	return 1
+}
+
+func FuzzApplyLayer(data []byte) int {
+	defer os.Remove("testDir")
+	err := os.Mkdir("testDir", 0750)
+	if err != nil {
+		return 0
+	}
+	_, _ = ApplyLayer("testDir", bytes.NewReader(data))
+	return 1
+}

projects/moby/build.sh

@@ -18,9 +18,21 @@
 mv $SRC/moby/vendor.mod $SRC/moby/go.mod
 
 cp $SRC/mounts_fuzzer.go $SRC/moby/volume/mounts/
+cp $SRC/tailfile_fuzzer.go $SRC/moby/pkg/tailfile/
+cp $SRC/archive_fuzzers.go $SRC/moby/pkg/archive/
+cp $SRC/jsonfilelog_fuzzer.go $SRC/moby/daemon/logger/jsonfilelog/
 
 go mod tidy
+go get github.com/AdaLogics/go-fuzz-headers@latest
+go mod vendor
 
 mv $SRC/moby/volume/mounts/parser_test.go $SRC/moby/volume/mounts/parser_test_fuzz.go
 mv $SRC/moby/volume/mounts/validate_unix_test.go $SRC/moby/volume/mounts/validate_unix_test_fuzz.go
 compile_go_fuzzer github.com/docker/docker/volume/mounts FuzzParseLinux FuzzParseLinux
+
+compile_go_fuzzer github.com/docker/docker/pkg/archive FuzzUntar FuzzUntar
+compile_go_fuzzer github.com/docker/docker/pkg/archive FuzzDecompressStream FuzzDecompressStream
+compile_go_fuzzer github.com/docker/docker/pkg/archive FuzzApplyLayer FuzzApplyLayer
+compile_go_fuzzer github.com/docker/docker/pkg/tailfile FuzzTailfile FuzzTailfile
+compile_go_fuzzer github.com/docker/docker/daemon/logger/jsonfilelog FuzzLoggerDecode FuzzLoggerDecode
+

projects/moby/jsonfilelog_fuzzer.go

@@ -0,0 +1,27 @@
+// Copyright 2022 Google LLC. All Rights Reserved.
+//
+// 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 jsonfilelog
+
+import (
+	"bytes"
+)
+
+func FuzzLoggerDecode(data []byte) int {
+	dec := decodeFunc(bytes.NewBuffer(data))
+	defer dec.Close()
+
+	_, _ = dec.Decode()
+	return 1
+}

projects/moby/tailfile_fuzzer.go

@@ -0,0 +1,49 @@
+// Copyright 2022 Google LLC. All Rights Reserved.
+//
+// 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 tailfile
+
+import (
+	fuzz "github.com/AdaLogics/go-fuzz-headers"
+	"os"
+)
+
+func FuzzTailfile(data []byte) int {
+	if len(data) < 5 {
+		return 0
+	}
+	f := fuzz.NewConsumer(data)
+	n, err := f.GetUint64()
+	if err != nil {
+		return 0
+	}
+	fileBytes, err := f.GetBytes()
+	if err != nil {
+		return 0
+	}
+	defer os.Remove("tailfile")
+	fil, err := os.Create("tailfile")
+	if err != nil {
+		return 0
+	}
+	defer fil.Close()
+
+	_, err = fil.Write(fileBytes)
+	if err != nil {
+		return 0
+	}
+	fil.Seek(0, 0)
+	_, _ = TailFile(fil, int(n))
+	return 1
+}