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Bug 1172189 - Fix overflow in nsXULContentSink.cpp. r=ehsan

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This commit is contained in:
Andrea Marchesini 2015-06-12 10:06:19 -04:00
parent fa57b1cb74
commit 66ac2c8e93
1 changed files with 7 additions and 1 deletions
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8
dom/xul/nsXULContentSink.cpp
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@ -1024,7 +1024,13 @@ XULContentSinkImpl::AddText(const char16_t* aText,
return rv;
}
} else {
mTextSize += aLength;
CheckedInt32 size = mTextSize;
size += aLength;
if (!size.isValid()) {
return NS_ERROR_OUT_OF_MEMORY;
}
mTextSize = size.value();
mText = (char16_t *) realloc(mText, sizeof(char16_t) * mTextSize);
if (nullptr == mText) {
return NS_ERROR_OUT_OF_MEMORY;