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bugfix: fix overflow risk of strlen function

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Hong, Yang A 2022-04-28 10:11:32 +00:00 committed by Konstantinos Margaritis
parent 2731a3384b
commit 4d4940dfbe
1 changed files with 2 additions and 1 deletions
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src/compiler/compiler.cpp
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@ -323,7 +323,8 @@ void addExpression(NG &ng, unsigned index, const char *expression,
} }
// Ensure that our pattern isn't too long (in characters). // Ensure that our pattern isn't too long (in characters).
if (strlen(expression) > cc.grey.limitPatternLength) { size_t maxlen = cc.grey.limitPatternLength + 1;
if (strnlen(expression, maxlen) >= maxlen) {
throw CompileError("Pattern length exceeds limit."); throw CompileError("Pattern length exceeds limit.");
} }