From b9f88ab166bd798d25d3acdbc6b5c305d7875482 Mon Sep 17 00:00:00 2001 From: Daniel Ebert Date: Tue, 5 Oct 2021 17:40:23 -0700 Subject: fix stack-use-after-return in libfuzzer custom mutator --- custom_mutators/libfuzzer/libfuzzer.inc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'custom_mutators/libfuzzer/libfuzzer.inc') diff --git a/custom_mutators/libfuzzer/libfuzzer.inc b/custom_mutators/libfuzzer/libfuzzer.inc index 01f21dbe..8c4bdbf6 100644 --- a/custom_mutators/libfuzzer/libfuzzer.inc +++ b/custom_mutators/libfuzzer/libfuzzer.inc @@ -2,7 +2,7 @@ extern "C" ATTRIBUTE_INTERFACE void LLVMFuzzerMyInit(int (*Callback)(const uint8_t *Data, size_t Size), unsigned int Seed) { - Random Rand(Seed); + auto *Rand = new Random(Seed); FuzzingOptions Options; Options.Verbosity = 3; Options.MaxLen = 1024000; @@ -30,7 +30,7 @@ LLVMFuzzerMyInit(int (*Callback)(const uint8_t *Data, size_t Size), unsigned int struct EntropicOptions Entropic; Entropic.Enabled = Options.Entropic; EF = new ExternalFunctions(); - auto *MD = new MutationDispatcher(Rand, Options); + auto *MD = new MutationDispatcher(*Rand, Options); auto *Corpus = new InputCorpus(Options.OutputCorpus, Entropic); auto *F = new Fuzzer(Callback, *Corpus, *MD, Options); } -- cgit 1.4.1