Regression with HTML_DYNAMIC_MENUS = NO, DISABLE_INDEX = NO, and custom LAYOUT_FILE

[lahwaacz]

Describe the bug
Doxygen 1.13.0 segfaults when specific settings are set in the Doxyfile, while version 1.12.0 worked fine.

To Reproduce

• Generate a default Doxyfile: doxygen -g Doxyfile
• Generate a default layout file: doxygen -l - > layout.xml
• Change three settings in the Doxyfile:

  LAYOUT_FILE            = layout.xml
  HTML_DYNAMIC_MENUS     = NO
  DISABLE_INDEX          = NO
  

  (Leaving any of these three settings at default will avoid the problem.)
• Run doxygen Doxyfile, it will segfault:

...
Generating namespace documentation...
Generating graph info page...
Generating directory documentation...
Generating index page...
Segmentation fault (core dumped)

Expected behavior
Doxygen should not segfault 😄

Version
Doxygen 1.13.0, built and installed on Arch Linux using the official package.

This bug was actually found during a rebuild of another Arch Linux package: https://gitlab.archlinux.org/archlinux/packaging/packages/arrayfire/-/issues/2

Stack trace
Running gdb --args doxygen Doxyfile shows the following stack trace:

Program received signal SIGSEGV, Segmentation fault.
Downloading 106.55 K source file /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/htmlgen.cpp
renderQuickLinksAsTabs (t=..., relPath=..., hlEntry=0x736176616a2f7478, kind=LayoutNavEntry::MainPage, highlightParent=false, highlightSearch=false)
    at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/htmlgen.cpp:2786
warning: Source file is more recent than executable.
2786	  if (hlEntry->parent()) // first draw the tabs for the parent of hlEntry
(gdb) bt
#0  renderQuickLinksAsTabs (t=..., relPath=..., hlEntry=0x736176616a2f7478, kind=LayoutNavEntry::MainPage, highlightParent=false, highlightSearch=false)
    at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/htmlgen.cpp:2786
#1  0x0000555555725bc6 in renderQuickLinksAsTabs (t=..., relPath=..., hlEntry=0x5555568317d8, kind=LayoutNavEntry::MainPage, highlightParent=false, highlightSearch=false)
    at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/htmlgen.cpp:2788
#2  0x0000555555725bc6 in renderQuickLinksAsTabs (t=..., relPath=..., hlEntry=0x555556849210, kind=LayoutNavEntry::MainPage, highlightParent=false, highlightSearch=false)
    at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/htmlgen.cpp:2788
#3  0x000055555574b90c in OutputList::foreach<HighlightedItem, QCString const&, HighlightedItem&, QCString const&> (this=0x555556838030,
    methodPtr=&virtual OutputGenIntf::writeQuickLinks(HighlightedItem, QCString const&)) at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/outputlist.h:764
#4  OutputList::writeQuickLinks (this=0x555556838030, hli=HighlightedItem::Main, file=...) at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/outputlist.h:614
#5  writeIndex (ol=...) at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/index.cpp:4770
#6  0x0000555555750133 in writeIndexHierarchyEntries (ol=..., entries=...) at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/index.cpp:5096
#7  0x000055555569ba88 in writeIndexHierarchy (ol=...) at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/index.cpp:5593
#8  generateOutput () at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/doxygen.cpp:13244
#9  0x00005555556029cd in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/doxygen/doxygen-Release_1_13_0/src/main.cpp:38

Additional context

loqs tried to doxygen between Release_1_12_0 and Release_1_13_0 and found this commit to be problematic: 0019111

[doxygen]

@lahwaacz Thanks for the quick feedback. Please verify if the referenced commit fixes the problem for you. Do not close the issue, this will be done automatically when the next official release becomes available.

[lahwaacz]

@doxygen Yes, the commit works. Thanks for the quick fix!

[doxygen]

This issue was previously marked 'fixed but not released',
which means it should be fixed in doxygen version 1.13.1.
Please verify if this is indeed the case. Reopen the
issue if you think it is not fixed and please include any additional information
that you think can be relevant (preferably in the form of a self-contained example).