diff options
Diffstat (limited to 'src/afl-fuzz-redqueen.c')
| -rw-r--r-- | src/afl-fuzz-redqueen.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/src/afl-fuzz-redqueen.c b/src/afl-fuzz-redqueen.c index 337f124d..6e4a655b 100644 --- a/src/afl-fuzz-redqueen.c +++ b/src/afl-fuzz-redqueen.c @@ -11,7 +11,7 @@ Andrea Fioraldi <andreafioraldi@gmail.com> Copyright 2016, 2017 Google Inc. All rights reserved. - Copyright 2019-2022 AFLplusplus Project. All rights reserved. + Copyright 2019-2023 AFLplusplus Project. All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. @@ -167,6 +167,25 @@ static u8 get_exec_checksum(afl_state_t *afl, u8 *buf, u32 len, u64 *cksum) { } +/* replace everything with different values */ +static void random_replace(afl_state_t *afl, u8 *buf, u32 len) { + + for (u32 i = 0; i < len; i++) { + + u8 c; + + do { + + c = rand_below(afl, 256); + + } while (c == buf[i]); + + buf[i] = c; + + } + +} + /* replace everything with different values but stay in the same type */ static void type_replace(afl_state_t *afl, u8 *buf, u32 len) { @@ -293,7 +312,15 @@ static u8 colorization(afl_state_t *afl, u8 *buf, u32 len, memcpy(backup, buf, len); memcpy(changed, buf, len); - type_replace(afl, changed, len); + if (afl->cmplog_random_colorization) { + + random_replace(afl, changed, len); + + } else { + + type_replace(afl, changed, len); + + } while ((rng = pop_biggest_range(&ranges)) != NULL && afl->stage_cur < afl->stage_max) { @@ -1008,7 +1035,7 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h, } else { - diff = 0; + o_diff = 0; } @@ -1597,6 +1624,8 @@ static void try_to_add_to_dictN(afl_state_t *afl, u128 v, u8 size) { } + if (cons_0 > 1 || cons_ff > 1) { return; } + } maybe_add_auto(afl, (u8 *)&v + off, size); |