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Morose 29d14492b1 xwayland: Fix check logic in sprite_check_lost_focus() 
When the pointer leaves an X11 window, and enters a Wayland native
window, Xwayland has no idea about Wayland native windows and may
generate the wrong crossing events to another X11 window instead.

To avoid that issue, Xwayland implements its own XYToWindow() handler to
compare the Wayland focused surface with the X11 window found in the
window tree.

Commit 59ad0e6a ("xwayland: Fix use after free of cursors") changed the
logic in sprite_check_lost_focus() to use IsParent() to compare the
windows, which works when the X11 window is reparented by the window
manager, but fails in the case of an override redirect window.

To fix the issue, also check whether last_xwindow is the window itself.

Signed-off-by: Morose <chenlinxiang@kylinos.cn>
Fixes: 59ad0e6a - xwayland: Fix use after free of cursors
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
(cherry picked from commit 92a00f5221)
2022-07-01 10:02:16 +02:00
.gitlab-ci Drop Xwin DDX and x86 MinGW-w64 cross build 2022-01-18 12:09:52 +01:00
composite Drop Xorg DDX 2022-01-18 12:09:52 +01:00
damageext Remove autotools support 2021-10-27 13:15:40 +03:00
dbe Drop Xorg DDX 2022-01-18 12:09:52 +01:00
dix Drop config directory 2022-01-18 12:09:52 +01:00
doc Remove autotools support 2021-10-27 13:15:40 +03:00
dri3 Drop Xorg DDX 2022-01-18 12:09:52 +01:00
fb Drop Xorg DDX 2022-01-18 12:09:52 +01:00
glamor Drop Xorg DDX 2022-01-18 12:09:52 +01:00
glx Drop Xorg DDX 2022-01-18 12:09:52 +01:00
hw xwayland: Fix check logic in sprite_check_lost_focus() 2022-07-01 10:02:16 +02:00
include Drop config directory 2022-01-18 12:09:52 +01:00
m4 Add ax_pthread.m4 to m4/ 2016-05-29 19:20:51 -07:00
man Remove autotools support 2021-10-27 13:15:40 +03:00
mi Drop Xorg DDX 2022-01-18 12:09:52 +01:00
miext Drop miext/shadow directory 2022-01-18 12:09:52 +01:00
os os: print registers in the libunwind version of xorg_backtrace() 2022-07-01 10:02:16 +02:00
present Drop Xorg DDX 2022-01-18 12:09:52 +01:00
randr randr: Add "RANDR Emulation" property 2022-05-25 09:43:17 +02:00
record record: Fix out of bounds access in SwapCreateRegister() 2021-12-14 15:00:00 +02:00
render render: Fix build with gcc 12 2022-01-28 10:32:04 +01:00
test Drop Xephyr / kdrive DDX 2022-01-18 12:09:52 +01:00
Xext Drop Xorg DDX 2022-01-18 12:09:52 +01:00
xfixes xfixes: Fix out of bounds access in *ProcXFixesCreatePointerBarrier() 2021-12-14 15:00:01 +02:00
Xi Convert more funcs to use InternalEvent. 2021-12-19 20:01:04 +00:00
xkb xkb: fix XkbSetMap check for the keytypes count 2021-12-03 00:33:23 +00:00
.appveyor.yml Drop Xephyr / kdrive DDX 2022-01-18 12:09:52 +01:00
.dir-locals.el .dir-locals.el: Add missing final newline 2019-10-01 17:05:28 +00:00
.gitignore .gitignore: Add new autotools file 'test-driver' 2014-04-21 13:41:42 -07:00
.gitlab-ci.yml Don't install Xvfb 2022-01-18 12:09:52 +01:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
meson.build Bump version to 22.1.2 2022-05-25 10:38:55 +02:00
meson_options.txt meson: Build Xwayland unconditionally 2022-01-18 12:09:52 +01:00
README.md Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
xserver.ent.in doc: relocate xserver.ent in the package root directory 2011-05-14 11:22:26 -07:00

README.md

X Server

The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.

Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.

For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server

All questions regarding this software should be directed at the Xorg mailing list:

https://lists.freedesktop.org/mailman/listinfo/xorg

The primary development code repository can be found at:

https://gitlab.freedesktop.org/xorg/xserver

For patch submission instructions, see:

https://www.x.org/wiki/Development/Documentation/SubmittingPatches

As with other projects hosted on freedesktop.org, X.Org follows its Code of Conduct, based on the Contributor Covenant. Please conduct yourself in a respectful and civilized manner when using the above mailing lists, bug trackers, etc:

https://www.freedesktop.org/wiki/CodeOfConduct