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Fuzzing and bugfixes for magicless-format decoding (#3976)

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* fuzzing and bugfixes for magicless format

* reset dctx before each decompression

* do not memcmp empty buffers

* nit: decompressor errata
This commit is contained in:
Elliot Gorokhovsky
2024-03-20 19:22:34 -04:00
committed by GitHub
parent 6a0052a409
commit 741b87bbe1
6 changed files with 163 additions and 4 deletions
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tests/fuzz/Makefile
+5 -1
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@@ -124,7 +124,8 @@ FUZZ_TARGETS := \
sequence_compression_api \
seekable_roundtrip \
huf_round_trip \
huf_decompress
huf_decompress \
decompress_cross_format
all: libregression.a $(FUZZ_TARGETS)
@@ -238,6 +239,9 @@ huf_round_trip: $(FUZZ_HEADERS) $(FUZZ_ROUND_TRIP_OBJ) rt_fuzz_huf_round_trip.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 $@
decompress_cross_format: $(FUZZ_HEADERS) $(FUZZ_DECOMPRESS_OBJ) d_fuzz_decompress_cross_format.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_DECOMPRESS_OBJ) d_fuzz_decompress_cross_format.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