From 8c11f089a1a68914f308ef83d3fbcc607d0b8262 Mon Sep 17 00:00:00 2001 From: Nick Terrell Date: Fri, 18 Oct 2019 13:34:35 -0700 Subject: [PATCH] [fuzz] Increase output buffer size of stream_round_trip Fixes OSS-Fuzz crash. Credit to OSS-Fuzz --- tests/fuzz/stream_round_trip.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tests/fuzz/stream_round_trip.c b/tests/fuzz/stream_round_trip.c index c534a904..703b1171 100644 --- a/tests/fuzz/stream_round_trip.c +++ b/tests/fuzz/stream_round_trip.c @@ -125,13 +125,14 @@ static size_t compress(uint8_t *dst, size_t capacity, int LLVMFuzzerTestOneInput(const uint8_t *src, size_t size) { + size_t neededBufSize; + /* Give a random portion of src data to the producer, to use for parameter generation. The rest will be used for (de)compression */ FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(src, size); size = FUZZ_dataProducer_reserveDataPrefix(producer); - size_t neededBufSize; - neededBufSize = ZSTD_compressBound(size) * 5; + neededBufSize = ZSTD_compressBound(size) * 15; /* Allocate all buffers and contexts if not already allocated */ if (neededBufSize > bufSize) {