Coverage Report

Created: 2025-11-16 06:23

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/lzma-fuzz/common-alloc.h
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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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369k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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369k
  if (size > kMaxAllowedMemory) {
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11
    return nullptr;
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11
  }
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40
369k
  return SzAlloc(nullptr, size);
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369k
}
lzmadec_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
Line
Count
Source
35
9.41k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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9.41k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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40
9.41k
  return SzAlloc(nullptr, size);
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9.41k
}
lzma2dec_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
Line
Count
Source
35
9.51k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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9.51k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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40
9.51k
  return SzAlloc(nullptr, size);
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9.51k
}
lzma2enc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Count
Source
35
66.7k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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66.7k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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66.7k
  return SzAlloc(nullptr, size);
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66.7k
}
ppmdenc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
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Count
Source
35
3.28k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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3.28k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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3.28k
  return SzAlloc(nullptr, size);
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3.28k
}
xzdec_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
Line
Count
Source
35
59.3k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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59.3k
  if (size > kMaxAllowedMemory) {
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3
    return nullptr;
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3
  }
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59.3k
  return SzAlloc(nullptr, size);
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59.3k
}
7z_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
Line
Count
Source
35
61.1k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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61.1k
  if (size > kMaxAllowedMemory) {
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8
    return nullptr;
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8
  }
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40
61.1k
  return SzAlloc(nullptr, size);
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61.1k
}
xzenc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
Line
Count
Source
35
111k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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111k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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40
111k
  return SzAlloc(nullptr, size);
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111k
}
lzmaenc_fuzzer.cc:LzmaAlloc(ISzAlloc const*, unsigned long)
Line
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Source
35
49.2k
static void *LzmaAlloc(ISzAllocPtr p, size_t size) {
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49.2k
  if (size > kMaxAllowedMemory) {
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0
    return nullptr;
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0
  }
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49.2k
  return SzAlloc(nullptr, size);
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49.2k
}
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43
715k
static void LzmaFree(ISzAllocPtr p, void *address) {
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715k
  SzFree(nullptr, address);
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715k
}
lzmadec_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
Line
Count
Source
43
18.8k
static void LzmaFree(ISzAllocPtr p, void *address) {
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18.8k
  SzFree(nullptr, address);
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18.8k
}
lzma2dec_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
Line
Count
Source
43
19.0k
static void LzmaFree(ISzAllocPtr p, void *address) {
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19.0k
  SzFree(nullptr, address);
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19.0k
}
lzma2enc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Count
Source
43
103k
static void LzmaFree(ISzAllocPtr p, void *address) {
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103k
  SzFree(nullptr, address);
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103k
}
ppmdenc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Source
43
6.56k
static void LzmaFree(ISzAllocPtr p, void *address) {
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6.56k
  SzFree(nullptr, address);
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6.56k
}
xzdec_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Count
Source
43
71.4k
static void LzmaFree(ISzAllocPtr p, void *address) {
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71.4k
  SzFree(nullptr, address);
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71.4k
}
7z_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
Line
Count
Source
43
261k
static void LzmaFree(ISzAllocPtr p, void *address) {
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261k
  SzFree(nullptr, address);
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261k
}
xzenc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Count
Source
43
149k
static void LzmaFree(ISzAllocPtr p, void *address) {
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149k
  SzFree(nullptr, address);
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149k
}
lzmaenc_fuzzer.cc:LzmaFree(ISzAlloc const*, void*)
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Source
43
84.3k
static void LzmaFree(ISzAllocPtr p, void *address) {
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84.3k
  SzFree(nullptr, address);
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84.3k
}
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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