[Libreoffice-commits] core.git: Branch 'distro/lhm/libreoffice-6-1+backports' - winaccessibility/source

[Michael Weghorn (via logerrit)]

 winaccessibility/source/UAccCOM/MAccessible.cxx |    4 ++++
 1 file changed, 4 insertions(+)

New commits:
commit 450a5322765324bdf6b8d3185cb39256f3bb3c90
Author:     Michael Weghorn <m.weghorn at posteo.de>
AuthorDate: Wed Jun 3 14:07:39 2020 +0200
Commit:     Michael Weghorn <m.weghorn at posteo.de>
CommitDate: Thu Jun 4 13:31:20 2020 +0200

    tdf#133633 winaccessibility: Add null check
    
    The call to 'AccObjectManagerAgent::GetIAccessibleFromResID'
    may set 'pImAcc' to nullptr here (s.
    'AccObjectWinManager::GetIAccessibleFromResID', which is called
    from there), so handle that case gracefully.
    
    Change-Id: I0dbd48974fd012ff086835b147cd9b9cfc8a052b
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/95430
    Tested-by: Jenkins
    Reviewed-by: Michael Weghorn <m.weghorn at posteo.de>
    (cherry picked from commit cb55b2854de31004ab1d0277894f9f2581d5c31b)
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/95419
    Tested-by: Michael Weghorn <m.weghorn at posteo.de>

diff --git a/winaccessibility/source/UAccCOM/MAccessible.cxx b/winaccessibility/source/UAccCOM/MAccessible.cxx
index fef53deb4471..c2db8353a888 100644
--- a/winaccessibility/source/UAccCOM/MAccessible.cxx
+++ b/winaccessibility/source/UAccCOM/MAccessible.cxx
@@ -785,6 +785,10 @@ STDMETHODIMP CMAccessible::get_accFocus(VARIANT *pvarChild)
         {
             IMAccessible* pIMAcc = nullptr;
             g_pAgent->GetIAccessibleFromResID(m_dFocusChildID,&pIMAcc);
+            if (pIMAcc == nullptr)
+            {
+                return E_FAIL;
+            }
             pIMAcc->AddRef();
             pvarChild->vt = VT_DISPATCH;
             pvarChild->pdispVal = pIMAcc;