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Bug 1509685 - Add more bounds checking in nsMsgDBView::UpdateDisplayMessage() to avoid crashes

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Tag #1311
This commit is contained in:
Gaming4JC 2019-12-02 22:13:37 -05:00 • committed by Roy Tam
commit a5aa1c26bf
1 changed files with 6 additions and 0 deletions
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6
mailnews/base/src/nsMsgDBView.cpp
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@ -1136,6 +1136,8 @@ nsresult nsMsgDBView::UpdateDisplayMessage(nsMsgViewIndex viewPosition)
NS_ENSURE_SUCCESS(rv,rv);
nsString subject;
if (viewPosition >= (nsMsgViewIndex)m_flags.Length())
return NS_MSG_INVALID_DBVIEW_INDEX;
FetchSubject(msgHdr, m_flags[viewPosition], subject);
nsCString keywords;
@ -1148,6 +1150,8 @@ nsresult nsMsgDBView::UpdateDisplayMessage(nsMsgViewIndex viewPosition)
if (folder)
{
if (viewPosition >= (nsMsgViewIndex)m_keys.Length())
return NS_MSG_INVALID_DBVIEW_INDEX;
rv = folder->SetLastMessageLoaded(m_keys[viewPosition]);
NS_ENSURE_SUCCESS(rv,rv);
}
@ -1175,6 +1179,8 @@ NS_IMETHODIMP nsMsgDBView::LoadMessageByViewIndex(nsMsgViewIndex aViewIndex)
nsCOMPtr<nsIMessenger> messenger (do_QueryReferent(mMessengerWeak));
NS_ENSURE_TRUE(messenger, NS_ERROR_FAILURE);
messenger->OpenURL(uri);
if (aViewIndex >= (nsMsgViewIndex)m_keys.Length())
return NS_MSG_INVALID_DBVIEW_INDEX;
m_currentlyDisplayedMsgKey = m_keys[aViewIndex];
m_currentlyDisplayedMsgUri = uri;
m_currentlyDisplayedViewIndex = aViewIndex;