svp: fix UB SalGraphics vector access

Change-Id: Ic417ffbf91b04ebd6e6f18ac03b155fd01bbb316 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/136226 Tested-by: Jenkins Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>
2022-06-21 17:01:18 +02:00
parent d48dd6057e
commit dbaf5f6fad
1 changed files with 1 additions and 1 deletions
@@ -423,7 +423,7 @@ void SvpSalFrame::UpdateSettings( AllSettings& rSettings )
        aStdFont.SetFontSize(Size(0, 12));
        aStyleSettings.SetMenuFont(aStdFont);

-        SvpSalGraphics* pGraphics = m_aGraphics.back();
+        SvpSalGraphics* pGraphics = m_aGraphics.empty() ? nullptr : m_aGraphics.back();
        bool bFreeGraphics = false;
        if (!pGraphics)
        {