Coverage Report

Created: 2025-07-23 07:02

/src/lzma-fuzz/common-alloc.h
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Source
1
/**
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 *
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 * @copyright Copyright (c) 2019 Joachim Bauch <mail@joachim-bauch.de>
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 *
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 * @license GNU GPL version 3 or any later version
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
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 *
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 */
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#include <stdint.h>
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#include <stdlib.h>
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#include "7zAlloc.h"
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#include "7zTypes.h"
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#if defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION)
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// Arbitrary limit of 2 GByte for memory allocations. Used to prevent the
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// MemorySanitizer from aborting with errors like "requested allocation size
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// 0xffffffffffffffff exceeds maximum supported size of 0x200000000".
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static const size_t kMaxAllowedMemory = 2 * 1024 * 1024 * 1024L;
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401k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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401k
  if (size > kMaxAllowedMemory) {
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11
    return nullptr;
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11
  }
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40
401k
  return SzAlloc(nullptr, size);
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401k
}
lzmadec_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
Line
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Source
35
9.91k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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9.91k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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9.91k
  return SzAlloc(nullptr, size);
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9.91k
}
lzma2dec_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Count
Source
35
10.5k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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10.5k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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10.5k
  return SzAlloc(nullptr, size);
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10.5k
}
lzma2enc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Count
Source
35
70.4k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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70.4k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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70.4k
  return SzAlloc(nullptr, size);
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70.4k
}
ppmdenc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Count
Source
35
3.27k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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3.27k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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3.27k
  return SzAlloc(nullptr, size);
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3.27k
}
xzdec_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Count
Source
35
66.0k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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66.0k
  if (size > kMaxAllowedMemory) {
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3
    return nullptr;
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3
  }
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40
66.0k
  return SzAlloc(nullptr, size);
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66.0k
}
7z_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Source
35
69.2k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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69.2k
  if (size > kMaxAllowedMemory) {
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8
    return nullptr;
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8
  }
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40
69.2k
  return SzAlloc(nullptr, size);
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69.2k
}
xzenc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Count
Source
35
120k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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120k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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40
120k
  return SzAlloc(nullptr, size);
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120k
}
lzmaenc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Source
35
51.4k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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51.4k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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51.4k
  return SzAlloc(nullptr, size);
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51.4k
}
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43
782k
static void LzmaFree(ISzAllocPtr p, void *address) {
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782k
  SzFree(nullptr, address);
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782k
}
lzmadec_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Count
Source
43
19.8k
static void LzmaFree(ISzAllocPtr p, void *address) {
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19.8k
  SzFree(nullptr, address);
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19.8k
}
lzma2dec_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Source
43
21.1k
static void LzmaFree(ISzAllocPtr p, void *address) {
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21.1k
  SzFree(nullptr, address);
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21.1k
}
lzma2enc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Source
43
109k
static void LzmaFree(ISzAllocPtr p, void *address) {
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109k
  SzFree(nullptr, address);
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109k
}
ppmdenc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Source
43
6.54k
static void LzmaFree(ISzAllocPtr p, void *address) {
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6.54k
  SzFree(nullptr, address);
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6.54k
}
xzdec_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Source
43
80.0k
static void LzmaFree(ISzAllocPtr p, void *address) {
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80.0k
  SzFree(nullptr, address);
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80.0k
}
7z_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Count
Source
43
295k
static void LzmaFree(ISzAllocPtr p, void *address) {
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295k
  SzFree(nullptr, address);
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295k
}
xzenc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Count
Source
43
161k
static void LzmaFree(ISzAllocPtr p, void *address) {
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161k
  SzFree(nullptr, address);
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161k
}
lzmaenc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Source
43
88.1k
static void LzmaFree(ISzAllocPtr p, void *address) {
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88.1k
  SzFree(nullptr, address);
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88.1k
}
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static ISzAlloc CommonAlloc = {LzmaAlloc, LzmaFree};
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#else
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#include "7zAlloc.h"
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static ISzAlloc CommonAlloc = {SzAlloc, SzFree};
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#endif