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Matthieu Herrb 7aaf54a188 Fix XChangeFeedbackControl() request underflow 
CVE-2021-3472 / ZDI-CAN-1259

This vulnerability was discovered by:
Jan-Niklas Sohn working with Trend Micro Zero Day Initiative

Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
 		2021-04-13 14:28:13 +02:00
.gitlab-ci ci: Test ninja dist in meson jobs 2021-01-22 17:03:16 +00:00
Xext meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
Xi Fix XChangeFeedbackControl() request underflow 2021-04-13 14:28:13 +02:00
composite meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
config linux: Fix udev ID_PATH parsing for udl devices 2020-11-25 04:39:14 +00:00
damageext Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
dbe meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
dix dix: Fix URL to description of focus in/out model 2021-03-25 23:18:14 +02:00
doc doc: Update URLs in Xserver-DTrace.xml 2020-07-05 13:18:45 -07:00
dri3 meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
exa exa: rename some badly named variables 2020-07-10 06:17:40 +10:00
fb meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
glamor glamor: Update pixmap's devKind when making it exportable 2020-11-04 10:21:11 -08:00
glx meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
hw xwayland: implement pixmap_from_buffers for the eglstream backend 2021-04-09 14:00:01 +00:00
include meson: switch getpeer* checks to autotools style 2021-04-09 16:44:27 +00:00
m4 Add ax_pthread.m4 to m4/ 2016-05-29 19:20:51 -07:00
man dix: Remove -to option to set the default connection timeout 2019-10-30 16:17:04 +00:00
mi xquartz: Call PseudoramiXExtensionInit() through InitOutput() just like xwin 2021-04-07 16:11:59 -07:00
miext miext: Remove if check which is always true 2021-03-26 09:02:14 +00:00
os meson: Make sure defines are either set to 1 or not defined 2021-04-09 11:18:54 +00:00
present meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
pseudoramiX Unvalidated lengths 2017-10-10 23:33:34 +02:00
randr meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
record Fix XRecordRegisterClients() Integer underflow 2020-08-25 17:01:29 +02:00
render meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
test meson: Disable LTO for tests 2021-04-09 11:18:54 +00:00
xfixes Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
xkb xkb: silence a compiler warning 2021-04-09 17:37:29 +00:00
.appveyor.yml hw/xwin: Remove XSetAuthorization() for helper clients 2020-04-15 14:13:58 +00:00
.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 ci: Test ninja dist in meson jobs 2021-01-22 17:03:16 +00:00
.travis.yml travis: Add OSX meson build to matrix 2019-05-02 15:42:58 +00:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
Makefile.am xfree86: Merge vbe into int10 2019-10-02 10:03:26 -04:00
README.md Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
autogen.sh autogen: Set a default subject prefix for patches 2016-02-08 17:41:38 -05:00
configure.ac xwayland: remove wl_log_set_handler_client workaround 2021-03-24 08:13:11 +01:00
devbook.am doc: Create a script to filter xmlto output 2015-01-05 14:24:06 -08:00
docbook.am docbook.am: embed css styles inside the HTML HEAD element 2011-09-21 14:07:49 -07:00
manpages.am man: Fix automake seddery 2018-05-08 12:15:30 -04:00
meson.build meson: Switch project version to 20.x.y style 2021-04-08 14:06:02 +00:00
meson_options.txt xfree86: Implement a test input driver 2020-12-14 01:12:10 +00:00
xorg-server.m4 xorg-server.m4: just all cflags instead of just sdkdir 2018-09-20 20:12:24 +01:00
xorg-server.pc.in xfree86: link modules against Xorg symbols on Cygwin 2012-04-05 21:57:07 -05:00
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