The fix from commit c468d34c7 - "glx: Set ContextTag for all contexts"
is actually incomplete, it correctly sets the context tag for direct
contexts as well, but would fail to mark the context's currentClient.
As a result, when the context is destroyed, it would be freed
immediately rather than being just scheduled for deletion, even though
it is still current for some client. leading to a use-after-free.
Make sure to also set the context's currentClient for direct contexts as
well, not just indirect ones.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Fixes: c468d34c7 - "glx: Set ContextTag for all contexts"
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1186
Reviewed-by: Adam Jackson <ajax@redhat.com>
aad61e8e03