[Bug 2089779] Re: Buffer overflow in autopkgtest of wesnoth

[Christian Ehrhardt ]

Between versions could most likely be packaging, upstream or something in the build env changing.
Most changes are in the upstream version, so let me try how https://github.com/libsdl-org/SDL.git behaves.


This is only what is in
libsdl2-2.0-0:amd64                  2.30.9+dfsg-1
Not the other sources that are creating:
libsdl2-image-2.0-0:amd64            2.8.2+dfsg-1build2
libsdl2-mixer-2.0-0:amd64            2.8.0+dfsg-1build3

Build steps after bdeps:

$ git checkout release-2.30.9

$ prefix=/usr/local/

$ autoreconf

$ ./configure --build=x86_64-linux-gnu --prefix=/usr
--includedir=${prefix}/include --mandir=${prefix}/share/man
--infodir=${prefix}/share/info --sysconfdir=/etc --localstatedir=/var
--disable-option-checking --disable-silent-rules
--libdir=${prefix}/lib/x86_64-linux-gnu --runstatedir=/run --disable-
maintainer-mode --disable-dependency-tracking --disable-alsa-shared
--disable-arts --disable-directx --disable-esd --disable-fusionsound
--disable-jack --disable-joystick-mfi --disable-kmsdrm-shared --disable-
libsamplerate-shared --disable-nas --disable-pulseaudio-shared
--disable-render-d3d --disable-rpath --disable-video-cocoa --disable-
video-directfb --disable-video-metal --disable-video-opengles1
--disable-video-rpi --disable-video-vivante --disable-wasapi --disable-
wayland-shared --disable-x11-shared --disable-xinput --enable-alsa
--enable-dbus --enable-fcitx --enable-hidapi --enable-hidapi-joystick
--enable-ibus --enable-libsamplerate --enable-pulseaudio --enable-
sdl2-config --enable-sndio "--enable-vendor-info=Ubuntu 2.30.6+dfsg-1"
--enable-video-kmsdrm --enable-video-opengl --enable-video-opengles
--enable-video-opengles2 --enable-video-x11 --enable-libdecor --enable-
libudev --enable-pipewire --enable-video-vulkan --enable-video-wayland
ac_cv_header_libunwind_h=no

$ make -j4 V=1

$ sudo make -j1 install AM_UPDATE_INFO_DIR=no

I have now from the package:
$ find /lib/x86_64-linux-gnu/ -name '*SDL2-2*'
/lib/x86_64-linux-gnu/libSDL2-2.0.so.0
/lib/x86_64-linux-gnu/libSDL2-2.0.so.0.3000.9

And from this build
$ find /usr/local -name '*SDL2-2*'
/usr/local/lib/x86_64-linux-gnu/libSDL2-2.0.so.0
/usr/local/lib/x86_64-linux-gnu/libSDL2-2.0.so.0.3000.9

$ export LD_LIBRARY_PATH=/usr/local/lib/x86_64-linux-gnu:/lib:/usr/lib
$ ldd /usr/games/wesnoth-1.18 | grep -i sdl
	libSDL2_image-2.0.so.0 => /lib/x86_64-linux-gnu/libSDL2_image-2.0.so.0 (0x000075c13248e000)
	libSDL2-2.0.so.0 => /usr/local/lib/x86_64-linux-gnu/libSDL2-2.0.so.0 (0x000075c132200000)
	libSDL2_mixer-2.0.so.0 => /lib/x86_64-linux-gnu/libSDL2_mixer-2.0.so.0 (0x000075c1321d5000)

With that build from git, the test works :-/
I mean good that it works, but that means no bisecting as that is 2.30.9 just as in plucky but working from git.

So it either are details to the build process or Debian/Ubuntu delta.
There isn't much delta (generic libdir for multiarch and no unifont).
So instead we might have to look at cflags and such if this could be the culprint ....

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https://bugs.launchpad.net/bugs/2089779

Title:
  Buffer overflow in autopkgtest of wesnoth

Status in boost1.83 package in Ubuntu:
  New
Status in libsdl2 package in Ubuntu:
  Incomplete
Status in python3-defaults package in Ubuntu:
  New
Status in wesnoth package in Ubuntu:
  Triaged
Status in wesnoth-1.18 package in Ubuntu:
  New

Bug description:
  https://objectstorage.prodstack5.canonical.com/swift/v1/AUTH_0f9aae918d5b4744bf7b827671c86842/autopkgtest-
  plucky/plucky/amd64/w/wesnoth-1.18/20241127_064901_ac814@/log.gz

  Repeats on reruns triggered by others.
  Blocks multiple migrations, atm
  - libsdl2
  - python3-defaults
  - boost1.83

  Unblocking all of these is surely worth it :-)
  I'll have a look tomorrow.

  229s autopkgtest [06:48:46]: test command1: /usr/games/wesnoth-1.18 -m --controller 1:ai --controller 2:ai --nogui
  229s autopkgtest [06:48:46]: test command1: [-----------------------
  229s Battle for Wesnoth v1.18.3 x86_64
  229s Started on Wed Nov 27 06:48:46 2024
  229s 
  229s Automatically found a possible data directory at: /tmp/autopkgtest.kgIWzV/build.Cyz/src
  229s 
  229s Data directory:               /tmp/autopkgtest.kgIWzV/build.Cyz/src
  229s User configuration directory: /home/USER/.config/wesnoth-1.18
  229s User data directory:          /home/USER/.config/wesnoth-1.18
  229s Cache directory:              /home/USER/.config/wesnoth-1.18/cache
  229s 
  229s 
  229s error: XDG_RUNTIME_DIR is invalid or not set in the environment.
  229s *** buffer overflow detected ***: terminated
  230s Aborted (core dumped)

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