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johniyoods fb0123f42e egl/dri2: require valid render fd before advertising EGL_WL_bind_wayland_display
Commit 718ef151f2 removed the legacy non-dmabuf wl_drm path and now
gates the extension on has_dmabuf_import && has_dmabuf_export. These
flags reflect driver capability and do not depend on whether a valid DRM
render fd was assigned during display initialization.
Before commit 718ef151f2, dri2_get_capabilities() returned 0 for
kms_swrast paths because can_share_buffer is false there, so the
__DRI_IMAGE_CAP_GLOBAL_NAMES check naturally excluded software-only
devices. The replacement dmabuf flags do not have this property.

On a software-only device (e.g., vgem), fd_render_gpu stays -1 and
device_name is NULL, yet both dmabuf flags are true, causing the
extension to be incorrectly advertised. When a Wayland compositor calls
eglBindWaylandDisplayWL(), drmGetRenderDeviceNameFromFd(-1) returns NULL
and strdup(device_name) is called on a NULL pointer, causing a SIGSEGV.

Add an additional guard when setting WL_bind_wayland_display,
so the extension is only advertised when a valid DRM render fd is present

Fixes: 718ef151f2 ("egl/wayland: Remove support for non-dmabuf wl_drm")

Signed-off-by: johniyoods <johniyoods@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41527>
2026-05-13 16:16:48 +00:00
.ci-farms ci: lima farm maintenance 2026-05-10 18:28:11 +02:00
.ci-farms-disabled ci: lima farm maintenance 2026-05-10 18:28:11 +02:00
.github/workflows meson: remove unused osmesa option 2025-06-23 06:42:50 +00:00
.gitlab radv: introduce RADV_EXPERIMENTAL envvar for experimental features 2026-03-30 07:27:01 +00:00
.gitlab-ci Uprev VVL to 4acd00c7a0665c9b1d01604e5fe1454837f87134 2026-05-11 16:22:39 +00:00
.marge/hooks marge/pipeline_message: print details for any pipeline that hasn't succeeded 2026-02-13 14:44:30 +00:00
android android: fix building rules for i915, r300 2025-10-08 23:43:33 +02:00
bin bin/gen_release_notes: add paragraph on OpenCL support 2026-05-13 15:21:40 +00:00
build-support meson: move tsan-blacklist.txt to build-support with the other build support files 2024-05-01 07:05:12 +00:00
docs docs/features: add OpenCL 3.1 section 2026-05-13 15:21:40 +00:00
include include: update CL headers 2026-05-13 15:21:40 +00:00
licenses licenses: add missing licenses 2025-01-08 20:37:51 +00:00
src egl/dri2: require valid render fd before advertising EGL_WL_bind_wayland_display 2026-05-13 16:16:48 +00:00
subprojects meson: update libdrm wrap 2026-05-12 13:02:24 +00:00
.clang-format meson: Restore .clang-format for ninja clang-format target 2026-02-02 13:30:55 +00:00
.clang-format-ignore ethosu: Switch to the weight encoder from Regor 2026-03-23 07:45:55 +00:00
.clang-format-include ethos: Initial commit of a driver for the Arm Ethos-U65 NPU. 2025-10-15 20:10:15 +00:00
.dir-locals.el
.editorconfig editorconfig: Set for glsl files 2025-11-14 19:31:17 +00:00
.git-blame-ignore-revs radv: Add re-format commit to .git-blame-ignore-revs 2025-11-12 07:55:36 +00:00
.gitattributes gitlab: Highlight .cl as C 2023-11-02 11:37:46 +00:00
.gitignore Revert "add VK CTS validation report for a0 interpolation fix" 2026-02-10 18:07:18 +00:00
.gitlab-ci.yml ci: changing .gitlab-ci.yml itself also means the container jobs must exist 2026-03-18 14:19:02 +00:00
.graphqlrc.yml
.mailmap mailmap: Update my email 2026-03-12 23:36:00 +00:00
.mr-label-maker.yml mr-label-maker: Add rule for new trace replay config files 2026-05-11 08:02:05 +00:00
.shellcheckrc ci: move shellcheck options to .shellcheckrc 2024-10-24 22:43:03 +00:00
clippy.toml ci: read the MSRV from clippy.toml to avoid having too many copies to keep in sync 2025-12-20 00:13:19 +01:00
CODEOWNERS CODEOWNERS: update owners for Android components 2026-04-28 21:42:34 +00:00
meson.build meson: fix renderdoc integration define 2026-05-12 22:11:27 +00:00
meson.options amd: make ac_ib_parser an amd tool build option 2026-04-17 09:40:13 +00:00
README.rst docs: Match README installation guide with meson.rst 2024-07-27 11:53:53 +00:00
rustfmt.toml mesa: Add rustfmt.toml 2024-11-18 22:29:14 +00:00
VERSION VERSION: bump to 26.2 2026-04-15 13:15:35 +00:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


Source
------

This repository lives at https://gitlab.freedesktop.org/mesa/mesa.
Other repositories are likely forks, and code found there is not supported.


Build & install
---------------

You can find more information in our documentation (`docs/install.rst
<https://docs.mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ meson setup build
  $ ninja -C build/
  $ sudo ninja -C build/ install

Support
-------

Many Mesa devs hang on IRC; if you're not sure which channel is
appropriate, you should ask your question on `OFTC's #dri-devel
<irc://irc.oftc.net/dri-devel>`_, someone will redirect you if
necessary.
Remember that not everyone is in the same timezone as you, so it might
take a while before someone qualified sees your question.
To figure out who you're talking to, or which nick to ping for your
question, check out `Who's Who on IRC
<https://dri.freedesktop.org/wiki/WhosWho/>`_.

The next best option is to ask your question in an email to the
mailing lists: `mesa-dev\@lists.freedesktop.org
<https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_


Bug reports
-----------

If you think something isn't working properly, please file a bug report
(`docs/bugs.rst <https://docs.mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://docs.mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.