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fix(GeneralizationStage): forward crashes to objective feedback during gap probing #3738

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fix(GeneralizationStage): forward crashes to objective feedback during gap probing #3738

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14 changes: 12 additions & 2 deletions crates/libafl/src/stages/generalization.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,9 @@ use libafl_bolts::{
#[cfg(feature = "introspection")]
use crate::monitors::stats::PerfFeature;
use crate::{
Error, HasMetadata, HasNamedMetadata,
Error, ExecutionProcessor, HasMetadata, HasNamedMetadata,
corpus::{Corpus, HasCurrentCorpusId},
executors::{Executor, HasObservers},
executors::{Executor, ExitKind, HasObservers},
feedbacks::map::MapNoveltiesMetadata,
inputs::{
BytesInput, GeneralizedInputMetadata, GeneralizedItem, HasMutatorBytes, ResizableMutator,
Expand Down Expand Up @@ -92,6 +92,7 @@ where
+ HasNamedMetadata
+ HasCurrentCorpusId
+ MaybeHasClientPerfMonitor,
Z: ExecutionProcessor<EM, BytesInput, E::Observers, S>,
{
#[inline]
#[expect(clippy::too_many_lines)]
Expand Down Expand Up @@ -377,6 +378,7 @@ where
where
E: Executor<EM, BytesInput, S, Z> + HasObservers,
E::Observers: ObserversTuple<BytesInput, S>,
Z: ExecutionProcessor<EM, BytesInput, E::Observers, S>,
{
start_timer!(state);
executor.observers_mut().pre_exec_all(state, input)?;
Expand All @@ -392,6 +394,12 @@ where
.post_exec_all(state, input, &exit_kind)?;
mark_feature_time!(state, PerfFeature::PostExecObservers);

if exit_kind != ExitKind::Ok {
let observers = executor.observers();
fuzzer.evaluate_execution(state, manager, input, &*observers, &exit_kind, true)?;
return Ok(false);
}

let cnt = executor.observers()[&self.map_observer_handle]
.as_ref()
.how_many_set(novelties);
Expand All @@ -418,6 +426,7 @@ where
) -> Result<(), Error>
where
E: Executor<EM, BytesInput, S, Z> + HasObservers<Observers = OT>,
Z: ExecutionProcessor<EM, BytesInput, OT, S>,
{
let mut start = 0;
while start < payload.len() {
Expand Down Expand Up @@ -456,6 +465,7 @@ where
) -> Result<(), Error>
where
E: Executor<EM, BytesInput, S, Z> + HasObservers<Observers = OT>,
Z: ExecutionProcessor<EM, BytesInput, OT, S>,
{
let mut index = 0;
while index < payload.len() {
Expand Down
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