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Fix crash when closing master with children and grandchildren

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In some cases, it is possible that the BufferPositionMap has
dangling pointers. We thus check whether the Buffer is loaded
before accessing it.

Fixes: #10766
(cherry picked from commit 4f50cbcfe4)
This commit is contained in:
Juergen Spitzmueller 2017-09-28 09:06:33 +02:00
parent 1d55d8cd25
commit 7b41d977ad
2 changed files with 9 additions and 2 deletions
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8
src/Buffer.cpp
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@ -3583,8 +3583,12 @@ void Buffer::listMacroNames(MacroNameSet & macros) const
// loop over children // loop over children
Impl::BufferPositionMap::iterator it = d->children_positions.begin(); Impl::BufferPositionMap::iterator it = d->children_positions.begin();
Impl::BufferPositionMap::iterator end = d->children_positions.end(); Impl::BufferPositionMap::iterator end = d->children_positions.end();
for (; it != end; ++it) for (; it != end; ++it) {
it->first->listMacroNames(macros); Buffer * child = const_cast<Buffer *>(it->first);
// The buffer might have been closed (see #10766).
if (theBufferList().isLoaded(child))
child->listMacroNames(macros);
}
// call parent // call parent
Buffer const * const pbuf = d->parent(); Buffer const * const pbuf = d->parent();

3
status.22x
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@ -78,6 +78,9 @@ What's new
- Fix crash when closing master document with dirty child while Document - Fix crash when closing master document with dirty child while Document
Settings dialog is open (bug 9979). Settings dialog is open (bug 9979).
- Fix crash when closing master with children and grandchildren
(bug 10766).
- Fix random crash when dissolving inset (bug 10667). - Fix random crash when dissolving inset (bug 10667).
- Fix potential crash when cursor enters an inset (bug 10691). - Fix potential crash when cursor enters an inset (bug 10691).