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Commit 261d88fa authored by Ayushi Khopkar's avatar Ayushi Khopkar
Browse files

Added mkv_extractor_fuzzer 

Test: ./mkv_extractor_fuzzer
Bug: 151788863

Change-Id: Ia45a955d1c89ace6a1016171b3b10aca2198938c
parent df491ae7

media/extractors/fuzzers/Android.bp

+32 −0
Original line number Diff line number Diff line
@@ -139,6 +139,38 @@ cc_fuzz { 
    dictionary: "amr_extractor_fuzzer.dict",

}



cc_fuzz {

    name: "mkv_extractor_fuzzer",



    srcs: [

        "mkv_extractor_fuzzer.cpp",

    ],



    include_dirs: [

        "frameworks/av/media/extractors/mkv",

    ],



    static_libs: [

        "liblog",

        "libstagefright_foundation",

        "libmedia",

        "libextractorfuzzerbase",

        "libwebm",

        "libstagefright_flacdec",

        "libstagefright_metadatautils",

        "libmkvextractor",

        "libFLAC",

    ],



    shared_libs: [

        "libutils",

        "libmediandk",

        "libbinder",

    ],



    dictionary: "mkv_extractor_fuzzer.dict",

}



cc_fuzz {

    name: "mp3_extractor_fuzzer",

media/extractors/fuzzers/README.md

+35 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ 
+ [libmp4extractor](#mp4ExtractorFuzzer)

+ [libwavextractor](#wavExtractorFuzzer)

+ [libamrextractor](#amrExtractorFuzzer)

+ [libmkvextractor](#mkvExtractorFuzzer)

+ [libmp3extractor](#mp3ExtractorFuzzer)

+ [libaacextractor](#aacExtractorFuzzer)
@@ -116,6 +117,40 @@ To run on device 
  $ adb shell /data/fuzz/arm64/amr_extractor_fuzzer/amr_extractor_fuzzer CORPUS_DIR

```



# <a name="mkvExtractorFuzzer"></a> Fuzzer for libmkvextractor



## Plugin Design Considerations

The fuzzer plugin for MKV extractor uses the `ExtractorFuzzerBase` class and

implements only the `createExtractor` to create the MKV extractor class.



##### Maximize code coverage

Dict file (dictionary file) is created for MKV to ensure that the required element

ID's are present in every input file that goes to the fuzzer.

This ensures that larger code gets covered.





## Build



This describes steps to build mkv_extractor_fuzzer binary.



### Android



#### Steps to build

Build the fuzzer

```

  $ mm -j$(nproc) mkv_extractor_fuzzer

```



#### Steps to run

Create a directory CORPUS_DIR and copy some mkv files to that folder.

Push this directory to device.



To run on device

```

  $ adb sync data

  $ adb shell /data/fuzz/arm64/mkv_extractor_fuzzer/mkv_extractor_fuzzer CORPUS_DIR

```



# <a name="mp3ExtractorFuzzer"></a> Fuzzer for libmp3extractor



## Plugin Design Considerations

media/extractors/fuzzers/mkv_extractor_fuzzer.cpp

0 → 100644
+62 −0
Original line number Diff line number Diff line 
/******************************************************************************

 *

 * Copyright (C) 2020 The Android Open Source Project

 *

 * 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.

 *

 *****************************************************************************

 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore

 */



#include "ExtractorFuzzerBase.h"



#include "MatroskaExtractor.h"



using namespace android;



class MKVExtractor : public ExtractorFuzzerBase {

 public:

  MKVExtractor() = default;

  ~MKVExtractor() = default;



  bool createExtractor();

};



bool MKVExtractor::createExtractor() {

  mExtractor = new MatroskaExtractor(new DataSourceHelper(mDataSource->wrap()));

  if (!mExtractor) {

    return false;

  }

  mExtractor->name();

  return true;

}



extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

  if ((!data) || (size == 0)) {

    return 0;

  }

  MKVExtractor* extractor = new MKVExtractor();

  if (!extractor) {

    return 0;

  }

  if (extractor->setDataSource(data, size)) {

    if (extractor->createExtractor()) {

      extractor->getExtractorDef();

      extractor->getMetadata();

      extractor->extractTracks();

      extractor->getTracksMetadata();

    }

  }

  delete extractor;

  return 0;

}

media/extractors/fuzzers/mkv_extractor_fuzzer.dict

0 → 100644
+244 −0
Original line number Diff line number Diff line 
# Elements ID's

kw1="\x42\x86"

kw2="\x42\xF7"

kw3="\x42\xF2"

kw4="\x42\xF3"

kw5="\x42\x87"

kw6="\x42\x85"

kw7="\x18\x53\x80\x67"

kw8="\x11\x4D\x9B\x74"

kw9="\x4D\xBB"

kw10="\x53\xAB"

kw11="\x53\xAC"

kw12="\x15\x49\xA9\x66"

kw13="\x73\xA4"

kw14="\x73\x84"

kw15="\x3C\xB9\x23"

kw16="\x3C\x83\xAB"

kw17="\x3C\xB9\x23"

kw18="\x3E\x83\xBB"

kw19="\x44\x44"

kw20="\x69\x24"

kw21="\x69\xFC"

kw22="\x69\xBF"

kw23="\x69\xA5"

kw24="\x2A\xD7\xB1"

kw25="\x44\x89"

kw26="\x44\x61"

kw27="\x7B\xA9"

kw28="\x4D\x80"

kw29="\x57\x41"

kw30="\x1F\x43\xB6\x75"

kw31="\xE7"

kw32="\x58\x54"

kw33="\x58\xD7"

kw34="\xA7"

kw35="\xAB"

kw36="\xA3"

kw37="\xA0"

kw38="\xA1"

kw39="\xA2"

kw40="\x75\xA1"

kw41="\x2A\xD7\xB1"

kw42="\xA6"

kw43="\xEE"

kw44="\xA5"

kw45="\x9A"

kw46="\xFA"

kw47="\xFB"

kw48="\xFD"

kw49="\xA4"

kw50="\x75\xA2"

kw51="\x8E"

kw52="\xE8"

kw53="\xCC"

kw54="\xCD"

kw55="\xCB"

kw56="\xCE"

kw57="\xCF"

kw58="\xC8"

kw59="\xC9"

kw60="\xCA"

kw61="\xAF"

kw62="\x16\x54\xAE\x6B"

kw63="\xAE"

kw64="\xD7"

kw65="\x73\xC5"

kw66="\x83"

kw67="\xB9"

kw68="\x88"

kw69="\x55\xAA"

kw70="\x9C"

kw71="\x6D\xE7"

kw72="\x6D\xF8"

kw73="\x23\xE3\x83"

kw74="\x23\x4E\x7A"

kw75="\x23\x31\x4F"

kw76="\x53\x7F"

kw77="\x55\xEE"

kw78="\x53\x6E"

kw79="\x22\xB5\x9C"

kw80="\x22\xB5\x9D"

kw81="\x86"

kw82="\x63\xA2"

kw83="\x25\x86\x88"

kw84="\x26\xB2\x40"

kw85="\xAA"

kw86="\x6F\xAB"

kw87="\x56\xAA"

kw88="\x56\xBB"

kw89="\x66\x24"

kw90="\x66\xFC"

kw91="\x66\xBF"

kw92="\xE0"

kw93="\x9A"

kw94="\x9D"

kw95="\x53\xB8"

kw96="\x53\xC0"

kw97="\x53\xB9"

kw98="\xB0"

kw99="\xBA"

kw100="\x54\xAA"

kw101="\x54\xBB"

kw102="\x54\xCC"

kw103="\x54\xDD"

kw104="\x54\xB0"

kw105="\x54\xBA"

kw106="\x54\xB2"

kw107="\x54\xB3"

kw108="\x2E\xB5\x24"

kw109="\x2F\xB5\x23"

kw110="\x23\x83\xE3"

kw111="\x55\xB0"

kw112="\x55\xB1"

kw113="\x55\xB2"

kw114="\x55\xB3"

kw115="\x55\xB4"

kw116="\x55\xB5"

kw117="\x55\xB6"

kw118="\x55\xB7"

kw119="\x55\xB8"

kw120="\x55\xB9"

kw121="\x55\xBA"

kw122="\x55\xBB"

kw123="\x55\xBC"

kw124="\x55\xBD"

kw125="\x55\xD0"

kw126="\x55\xD1"

kw127="\x55\xD2"

kw128="\x55\xD3"

kw129="\x55\xD4"

kw130="\x55\xD5"

kw131="\x55\xD6"

kw132="\x55\xD7"

kw133="\x55\xD8"

kw134="\x55\xD9"

kw135="\x55\xDA"

kw136="\x76\x70"

kw137="\x76\x71"

kw138="\x76\x72"

kw139="\x76\x73"

kw140="\x76\x74"

kw141="\x76\x75"

kw142="\xE1"

kw143="\xB5"

kw144="\x78\xB5"

kw145="\x9F"

kw146="\x7D\x7B"

kw147="\x62\x64"

kw148="\xE2"

kw149="\xE3"

kw150="\xE4"

kw151="\xE5"

kw152="\xE6"

kw153="\xE9"

kw154="\xED"

kw155="\xC0"

kw156="\xC1"

kw157="\xC6"

kw158="\xC7"

kw159="\xC4"

kw160="\x6D\x80"

kw161="\x62\x40"

kw162="\x50\x31"

kw163="\x50\x32"

kw164="\x50\x33"

kw165="\x50\x34"

kw166="\x50\x35"

kw167="\x42\x54"

kw168="\x42\x55"

kw169="\x47\xE1"

kw170="\x47\xE2"

kw171="\x47\xE7"

kw172="\x47\xE8"

kw173="\x47\xE3"

kw174="\x47\xE4"

kw175="\x47\xE5"

kw176="\x47\xE6"

kw177="\x1C\x53\xBB\x6B"

kw178="\xBB"

kw179="\xB3"

kw180="\xB7"

kw181="\xF7"

kw182="\xF1"

kw183="\xF0"

kw184="\xB2"

kw185="\x53\x78"

kw186="\xEA"

kw187="\xDB"

kw188="\x96"

kw189="\x97"

kw190="\x53\x5F"

kw191="\xEB"

kw192="\x19\x41\xA4\x69"

kw193="\x46\x7E"

kw194="\x46\x6E"

kw195="\x46\x60"

kw196="\x46\x5C"

kw197="\x46\xAE"

kw198="\x46\x75"

kw199="\x46\x61"

kw200="\x46\x62"

kw201="\x10\x43\xA7\x70"

kw202="\x45\xB9"

kw203="\x45\xBC"

kw204="\x45\xBD"

kw205="\x45\xDB"

kw206="\x45\xDD"

kw207="\xB6"

kw208="\x73\xC4"

kw209="\x56\x54"

kw210="\x91"

kw211="\x92"

kw212="\x98"

kw213="\x45\x98"

kw214="\x6E\x67"

kw215="\x6E\xBC"

kw216="\x63\xC3"

kw217="\x8F"

kw218="\x89"

kw219="\x80"

kw220="\x85"

kw221="\x43\x7C"

kw222="\x43\x7D"

kw223="\x43\x7E"

kw224="\x69\x44"

kw225="\x69\x55"

kw226="\x45\x0D"

kw227="\x69\x11"

kw228="\x69\x22"

kw229="\x69\x33"

kw230="\x12\x54\xC3\x67"

kw231="\x73\x73"

kw232="\x63\xC0"

kw233="\x68\xCA"

kw234="\x63\xCA"

kw235="\x63\xC5"

kw236="\x63\xC9"

kw237="\x67\xC8"

kw238="\x45\xA3"

kw239="\x44\x7A"

kw240="\x44\x7B"

kw241="\x44\x84"

kw242="\x44\x87"

kw243="\x44\x85"