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[fuzzer] Add huf_decompress fuzzer

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Add a fuzzer for Huffman decompression. Fix several bugs in Huffman
decompression, mostly related to `op == NULL` and pointer underflow.
This commit is contained in:
Nick Terrell
2021-09-17 15:00:49 -07:00
parent 6392c382bf
commit d7542aacd9
4 changed files with 159 additions and 78 deletions
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tests/fuzz/Makefile
+5 -1
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@@ -112,7 +112,8 @@ FUZZ_TARGETS := \
fse_read_ncount \
sequence_compression_api \
seekable_roundtrip \
huf_round_trip
huf_round_trip \
huf_decompress
all: libregression.a $(FUZZ_TARGETS)
@@ -218,6 +219,9 @@ seekable_roundtrip: $(FUZZ_HEADERS) $(SEEKABLE_HEADERS) $(FUZZ_ROUND_TRIP_OBJ) $
huf_round_trip: $(FUZZ_HEADERS) $(FUZZ_ROUND_TRIP_OBJ) rt_fuzz_huf_round_trip.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_ROUND_TRIP_OBJ) rt_fuzz_huf_round_trip.o $(LIB_FUZZING_ENGINE) -o $@
huf_decompress: $(FUZZ_HEADERS) $(FUZZ_DECOMPRESS_OBJ) d_fuzz_huf_decompress.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_DECOMPRESS_OBJ) d_fuzz_huf_decompress.o $(LIB_FUZZING_ENGINE) -o $@
libregression.a: $(FUZZ_HEADERS) $(PRGDIR)/util.h $(PRGDIR)/util.c d_fuzz_regression_driver.o
$(AR) $(FUZZ_ARFLAGS) $@ d_fuzz_regression_driver.o