- updated to 2.63c
- all:
- big code changes to make afl-fuzz thread-safe so afl-fuzz can spawn
multiple fuzzing threads in the future or even become a library
- afl basic tools now report on the environment variables picked up
- more tools get environment variable usage info in the help output
- force all output to stdout (some OK/SAY/WARN messages were sent to
stdout, some to stderr)
- uninstrumented mode uses an internal forkserver ("fauxserver")
- now builds with `-D_FORTIFY_SOURCE=2`
- drastically reduced number of (de)allocations during fuzzing
- afl-fuzz:
- python mutator modules and custom mutator modules now use the same
interface and hence the API changed
- AFL_AUTORESUME will resume execution without the need to specify `-i -`
- added experimental power schedules (-p):
- mmopt: ignores runtime of queue entries, gives higher weighting to
the last 5 queue entries
- rare: puts focus on queue entries that hits rare branches, also ignores
runtime
- llvm_mode:
- added SNAPSHOT feature (using https://github.com/AFLplusplus/AFL-Snapshot-LKM)
- added Control Flow Integrity sanitizer (AFL_USE_CFISAN)
- added AFL_LLVM_INSTRUMENT option to control the instrumentation type
easier: DEFAULT, CFG (INSTRIM), LTO, CTX, NGRAM-x (x=2-16)
- made USE_TRACE_PC compile obsolete
- LTO collision free instrumented added in llvm_mode with afl-clang-lto -
note that this mode is amazing, but quite some targets won't compile
- Added llvm_mode NGRAM prev_loc coverage by Adrean Herrera
(https://github.com/adrianherrera/afl-ngram-pass/), activate by setting (forwarded request 793419 from msmeissn)