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Fixed segfault when checking libusbx (daca2)

This commit is contained in:
Daniel Marjamäki 2014-03-26 06:51:56 +01:00
parent 6da9cca4ab
commit fa7ae1ae5b
1 changed files with 2 additions and 0 deletions
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2
lib/checkbufferoverrun.cpp
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@ -1186,6 +1186,8 @@ void CheckBufferOverrun::checkScope(const Token *tok, const ArrayInfo &arrayInfo
// Negative index.. // Negative index..
for (const Token *tok2 = tok->next(); tok2 && tok2->str() == "["; tok2 = tok2->link()->next()) { for (const Token *tok2 = tok->next(); tok2 && tok2->str() == "["; tok2 = tok2->link()->next()) {
const Token *index = tok2->astOperand2(); const Token *index = tok2->astOperand2();
if (!index)
continue;
std::list<ValueFlow::Value>::const_iterator it; std::list<ValueFlow::Value>::const_iterator it;
const ValueFlow::Value *val = nullptr; const ValueFlow::Value *val = nullptr;
for (it = index->values.begin(); it != index->values.end(); ++it) { for (it = index->values.begin(); it != index->values.end(); ++it) {