diff options
Diffstat (limited to 'instrumentation/afl-llvm-lto-instrumentation.so.cc')
| -rw-r--r-- | instrumentation/afl-llvm-lto-instrumentation.so.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/instrumentation/afl-llvm-lto-instrumentation.so.cc b/instrumentation/afl-llvm-lto-instrumentation.so.cc index fe43fbe5..46aa388e 100644 --- a/instrumentation/afl-llvm-lto-instrumentation.so.cc +++ b/instrumentation/afl-llvm-lto-instrumentation.so.cc @@ -546,6 +546,12 @@ bool AFLLTOPass::runOnModule(Module &M) { uint64_t literalLength = Str2.size(); uint64_t optLength = ilen->getZExtValue(); + if (optLength > literalLength + 1) { + + optLength = Str2.length() + 1; + + } + if (literalLength + 1 == optLength) { Str2.append("\0", 1); // add null byte @@ -649,6 +655,7 @@ bool AFLLTOPass::runOnModule(Module &M) { uint64_t literalLength = optLen; optLen = ilen->getZExtValue(); + if (optLen > literalLength + 1) { optLen = literalLength + 1; } if (optLen < 2) { continue; } if (literalLength + 1 == optLen) { // add null byte thestring.append("\0", 1); |