diff options
Diffstat (limited to 'instrumentation/afl-llvm-dict2file.so.cc')
| -rw-r--r-- | instrumentation/afl-llvm-dict2file.so.cc | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/instrumentation/afl-llvm-dict2file.so.cc b/instrumentation/afl-llvm-dict2file.so.cc index e2b44b21..5350f62b 100644 --- a/instrumentation/afl-llvm-dict2file.so.cc +++ b/instrumentation/afl-llvm-dict2file.so.cc @@ -428,6 +428,12 @@ bool AFLdict2filePass::runOnModule(Module &M) { uint64_t literalLength = Str2.length(); uint64_t optLength = ilen->getZExtValue(); + if (optLength > literalLength + 1) { + + optLength = Str2.length() + 1; + + } + if (literalLength + 1 == optLength) { Str2.append("\0", 1); // add null byte @@ -534,7 +540,12 @@ bool AFLdict2filePass::runOnModule(Module &M) { uint64_t literalLength = optLen; optLen = ilen->getZExtValue(); - if (optLen > thestring.length()) { optLen = thestring.length(); } + if (optLen > thestring.length() + 1) { + + optLen = thestring.length() + 1; + + } + if (optLen < 2) { continue; } if (literalLength + 1 == optLen) { // add null byte thestring.append("\0", 1); |