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GHSL-2023-092: Check if i is not bigger than datalen

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This commit is contained in:
JarLob 2023-07-02 09:56:09 +00:00
parent 9e24ec55db
commit d7ea26d931
1 changed files with 4 additions and 1 deletions
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5
PowerEditor/src/ScintillaComponent/Buffer.cpp
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@ -1403,8 +1403,11 @@ LangType FileManager::detectLanguageFromTextBegining(const unsigned char *data,
break;
}
if (i == dataLen)
return L_TEXT;
// Create the buffer to need to test
const size_t longestLength = 40; // shebangs can be large
const size_t longestLength = std::min<size_t>(40, dataLen - i); // shebangs can be large
std::string buf2Test = std::string((const char *)data + i, longestLength);
// Is there a \r or \n in the buffer? If so, truncate it