Module mutators 

Macros

impl_increment_decrement_mutator 🔒

Statics

INTERESTING_8 🔒

INTERESTING_16 🔒

Interesting 16-bit values to inject.

INTERESTING_32 🔒

Interesting 32-bit values to inject.

THREE_SIGMA_MULTIPLIERS 🔒

Multipliers used to define the 3 standard deviation range of a Gaussian-like curve. For example, a multiplier of 0.25 means the +/-3 standard deviation bounds are +/-25% of the original value.

Traits

BitMutator 🔒

Mutator that changes the current value by flipping a random bit.

BoundMutator

Mutator that bounds the current value of an uint or int in the given range. The mutated value is always different from the current value.

GaussianNoiseMutator 🔒

Mutator that changes the current value of an uint or int by applying gaussian noise.

IncrementDecrementMutator 🔒

Mutator that randomly increments or decrements an uint or int.

InterestingWordMutator 🔒

Mutator that changes the current value by randomly injecting interesting words (for uint, int, address and fixed bytes) - see https://github.com/AFLplusplus/LibAFL/blob/90cb9a2919faf386e0678870e52784070cdac4b6/crates/libafl/src/mutators/mutations.rs#L88-L123.

Functions

apply_scale_to_bytes 🔒

Applies a floating-point scale factor to a byte slice representing an unsigned or signed integer.

flip_random_bit_in_slice 🔒

Flips a random bit in the given mutable byte slice.

mutate_interesting_byte_slice 🔒

Mutates a random byte in the given byte slice by replacing it with a randomly chosen interesting 8-bit value.

mutate_interesting_dword_slice 🔒

Mutates a random 4-byte (32-bit) region in the byte slice with a randomly chosen interesting 32-bit value.

mutate_interesting_word_slice 🔒

Mutates a random 2-byte (16-bit) region in the byte slice with a randomly chosen interesting 16-bit value.

sample_gaussian_scale 🔒

Samples a scale factor from a pseudo-Gaussian distribution centered around 1.0.

validate_int_mutation 🔒

Returns mutated int value if different from the original value and if it fits in the given size, otherwise None.

validate_uint_mutation 🔒

Returns mutated uint value if different from the original value and if it fits in the given size, otherwise None.