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Meta+LibGfx: Fuzz BMP parsing

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This commit is contained in:
Ben Wiederhake 2020-08-30 11:51:55 +02:00 • committed by Andreas Kling
parent 5d3c437cce
commit 98bfcb4b57
2 changed files with 50 additions and 0 deletions
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9
Meta/Lagom/Fuzzers/CMakeLists.txt
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@ -1,3 +1,12 @@
add_executable(FuzzBMP FuzzBMP.cpp)
target_compile_options(FuzzBMP
PRIVATE $<$<C_COMPILER_ID:Clang>:-g -O1 -fsanitize=fuzzer>
)
target_link_libraries(FuzzBMP
PUBLIC Lagom
PRIVATE $<$<C_COMPILER_ID:Clang>:-fsanitize=fuzzer>
)
add_executable(FuzzELF FuzzELF.cpp) add_executable(FuzzELF FuzzELF.cpp)
target_compile_options(FuzzELF target_compile_options(FuzzELF
PRIVATE $<$<C_COMPILER_ID:Clang>:-g -O1 -fsanitize=fuzzer> PRIVATE $<$<C_COMPILER_ID:Clang>:-g -O1 -fsanitize=fuzzer>

41
Meta/Lagom/Fuzzers/FuzzBMP.cpp Normal file
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@ -0,0 +1,41 @@
/*
* Copyright (c) 2020, the SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGfx/BMPLoader.h>
#include <stdio.h>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
{
Gfx::BMPImageDecoderPlugin loader { data, size };
auto bitmap = loader.bitmap();
if (!bitmap)
return 1;
if (bitmap->width() >= 100000 || bitmap->height() >= 100000) {
fprintf(stderr, "Silly bitmap: %dx%d pixels?!\n", bitmap->width(), bitmap->height());
ASSERT_NOT_REACHED();
}
return 0;
}