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Merge pull request #1098 from DanielEbert/fix-stack-use-after-return-in-libfuzzer-custom-mutator

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fix stack-use-after-return in libfuzzer custom mutator
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van Hauser 2021-10-06 13:18:32 +02:00 committed by GitHub
commit 02c9ae91aa
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1 changed files with 2 additions and 2 deletions
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custom_mutators/libfuzzer/libfuzzer.inc
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@ -2,7 +2,7 @@
extern "C" ATTRIBUTE_INTERFACE void extern "C" ATTRIBUTE_INTERFACE void
LLVMFuzzerMyInit(int (*Callback)(const uint8_t *Data, size_t Size), unsigned int Seed) { LLVMFuzzerMyInit(int (*Callback)(const uint8_t *Data, size_t Size), unsigned int Seed) {
Random Rand(Seed); auto *Rand = new Random(Seed);
FuzzingOptions Options; FuzzingOptions Options;
Options.Verbosity = 3; Options.Verbosity = 3;
Options.MaxLen = 1024000; Options.MaxLen = 1024000;
@ -30,7 +30,7 @@ LLVMFuzzerMyInit(int (*Callback)(const uint8_t *Data, size_t Size), unsigned int
struct EntropicOptions Entropic; struct EntropicOptions Entropic;
Entropic.Enabled = Options.Entropic; Entropic.Enabled = Options.Entropic;
EF = new ExternalFunctions(); EF = new ExternalFunctions();
auto *MD = new MutationDispatcher(Rand, Options); auto *MD = new MutationDispatcher(*Rand, Options);
auto *Corpus = new InputCorpus(Options.OutputCorpus, Entropic); auto *Corpus = new InputCorpus(Options.OutputCorpus, Entropic);
auto *F = new Fuzzer(Callback, *Corpus, *MD, Options); auto *F = new Fuzzer(Callback, *Corpus, *MD, Options);
} }