diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/afl-mutations.h | 21 | ||||
| -rw-r--r-- | include/config.h | 2 |
2 files changed, 19 insertions, 4 deletions
diff --git a/include/afl-mutations.h b/include/afl-mutations.h index 6338c93c..75e66484 100644 --- a/include/afl-mutations.h +++ b/include/afl-mutations.h @@ -1082,6 +1082,7 @@ u32 mutation_strategy_exploration_binary[MUT_STRATEGY_ARRAY_SIZE] = { MUT_CLONE_COPY, MUT_CLONE_COPY, MUT_CLONE_COPY, + MUT_CLONE_COPY, MUT_CLONE_FIXED, MUT_CLONE_FIXED, MUT_CLONE_FIXED, @@ -2490,12 +2491,13 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps, case MUT_INSERTASCIINUM: { - u32 len = 1 + rand_below(afl, 8); + u32 ins_len = 1 + rand_below(afl, 8); u32 pos = rand_below(afl, len); /* Insert ascii number. */ - if (unlikely(len < pos + len)) { + if (unlikely(len < pos + ins_len)) { + // no retry if we have a small input if (unlikely(len < 8)) { break; @@ -2511,7 +2513,20 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps, u64 val = rand_next(afl); char numbuf[32]; snprintf(numbuf, sizeof(numbuf), "%llu", val); - memcpy(buf + pos, numbuf, len); + size_t val_len = strlen(numbuf), off; + + if (ins_len > val_len) { + + ins_len = val_len; + off = 0; + + } else { + + off = val_len - ins_len; + + } + + memcpy(buf + pos, numbuf + off, ins_len); break; diff --git a/include/config.h b/include/config.h index b346d7b4..63340650 100644 --- a/include/config.h +++ b/include/config.h @@ -26,7 +26,7 @@ /* Version string: */ // c = release, a = volatile github dev, e = experimental branch -#define VERSION "++4.09c" +#define VERSION "++4.10a" /****************************************************** * * |