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| author | Andrea Fioraldi <andreafioraldi@gmail.com> | 2020-02-01 19:18:20 +0100 |
|---|---|---|
| committer | Andrea Fioraldi <andreafioraldi@gmail.com> | 2020-02-01 19:18:20 +0100 |
| commit | 2b50f6e0f8ecd12f62900f1209a6bc5881952e67 (patch) | |
| tree | 021a005dda43da99bdad886104c9e224e81ef5e5 | |
| parent | 214868777f98531641a3fe041cc6bbbd6dd3fae1 (diff) | |
| download | afl++-2b50f6e0f8ecd12f62900f1209a6bc5881952e67.tar.gz | |
dislocator readme
| -rw-r--r-- | libdislocator/README.dislocator.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libdislocator/README.dislocator.md b/libdislocator/README.dislocator.md index 77626901..d2d71606 100644 --- a/libdislocator/README.dislocator.md +++ b/libdislocator/README.dislocator.md @@ -25,8 +25,14 @@ heap-related security bugs in several ways: - It checks for calloc() overflows and can cause soft or hard failures of alloc requests past a configurable memory limit (AFL_LD_LIMIT_MB, AFL_LD_HARD_FAIL). + - Optionally, in platforms supporting it, huge pages can be used by passing USEHUGEPAGE=1 to make. + + - Size alignment to `sizeof(void*)` can be enforced with AFL_ALIGNED_ALLOC=1. + In this case, a tail canary is inserted in the padding bytes at the end + of the allocated zone. This reduce the ability of libdislocator to detect + off-by-one bugs but also it make slibdislocator compliant to the C standard. Basically, it is inspired by some of the non-default options available for the OpenBSD allocator - see malloc.conf(5) on that platform for reference. It is |