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-rw-r--r--ossfuzz/compress_frame_fuzzer.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/ossfuzz/compress_frame_fuzzer.c b/ossfuzz/compress_frame_fuzzer.c
index a99bb74..30f0448 100644
--- a/ossfuzz/compress_frame_fuzzer.c
+++ b/ossfuzz/compress_frame_fuzzer.c
@@ -19,19 +19,20 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(data, LZ4_compressBound(size));
LZ4F_preferences_t const prefs = FUZZ_dataProducer_preferences(producer);
- size_t const compressBound = LZ4F_compressFrameBound(FUZZ_dataProducer_remainingBytes(producer), &prefs);
- size_t const dstCapacitySeed = FUZZ_dataProducer_uint32_seed(producer, 0, compressBound);
- size_t const dstCapacity = FUZZ_dataProducer_uint32(dstCapacitySeed,
- 0, FUZZ_dataProducer_remainingBytes(producer));
+
+ size = FUZZ_dataProducer_remainingBytes(producer);
+ size_t const compressBound = LZ4F_compressFrameBound(size, &prefs);
+ size_t const dstCapacitySeed = FUZZ_dataProducer_uint32(producer, 0, compressBound);
+
+ size = FUZZ_dataProducer_remainingBytes(producer);
+ size_t const dstCapacity = FUZZ_getRange_from_uint32(dstCapacitySeed, 0, size);
+
char* const dst = (char*)malloc(dstCapacity);
char* const rt = (char*)malloc(size);
FUZZ_ASSERT(dst);
FUZZ_ASSERT(rt);
- /* Restrict to remaining data from producer */
- size = FUZZ_dataProducer_remainingBytes(producer);
-
/* If compression succeeds it must round trip correctly. */
size_t const dstSize =
LZ4F_compressFrame(dst, dstCapacity, data, size, &prefs);