LibAFL

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Any reason for not having a common interface between feedbacks and observers?

7

I see 4 types of relations between the feedbacks and observers 1. Feedbacks that accept any observers (e.g. Diff) 2. Feedbacks that accept observers of specific traits (e.g. Map, withHash,...

CowBoy4mH3LL

Hello there. We have developed a new Rust-native concolic executor that we would like to integrate with libAFL for hybrid fuzzing. Before proceeding, I would like to discuss some considerations...

domenukk

Right now, the executors are written with _atomic_ harnesses in mind -- the observers are prepared, then the harness is executed, then the observers are processed. This may not be...

domenukk

libafl_jumper cargo test --no-default-features leads to SIGSEGV

3

Marcondiro

## Description *describe your PR here* ## Checklist - [ ] I have run `./scripts/precommit.sh` and addressed all comments

domenukk

## Description *describe your PR here* ## Checklist - [ ] I have run `./scripts/precommit.sh` and addressed all comments

domenukk

**IMPORTANT** 1. You have verified that the issue to be present in the current `main` branch **Verified** Thank you for making LibAFL better! **Describe the bug** ``` $ RUST_BACKTRACE=1 ./target/release/libfuzzer_stb_image_concolic...

shadowpagetable

Fast snapshots randomly fail upon restoration in QEMU system mode

2

**Describe the bug** When using fast snapshots (syx snapshots) in QEMU system mode to restore OS execution context (GNU/Linux), the snapshot restoration frequently fails and corrupts the OS memory. The...

saruman9

IfElseRuntime incorrect behaviour

2

**Describe the bug** `FridaRuntime`s used in `IfElseRuntime` do not work correctly. This breaks ASAN in the `frida_libpng` example fuzzer for example. **To Reproduce** Either simply run the `frida_libpng` example fuzzer...

Muirey03

Use the Scudo hardened allocator in example fuzzers

3

The [Scudo](https://llvm.org/docs/ScudoHardenedAllocator.html) allocator (which is part of LLVM) "aims at providing additional mitigation against heap based vulnerabilities, while maintaining good performance". It is the default allocator in Android, and recently...

langston-barrett