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Jeffrey Smith 9227237806 modesetting: Do not close uninitialized dri2 screen
If a dri2 screen is not successfully initialized, attempting to close it
results in a null dereference.

Maintain a flag indicating whether the dri2 screen was successfully
initialized, and check it before attempting to close the dri2 screen.

https://bugzilla.redhat.com/show_bug.cgi?id=1485811
https://bugzilla.redhat.com/show_bug.cgi?id=1493805
https://bugzilla.redhat.com/show_bug.cgi?id=1534459
https://bugzilla.redhat.com/show_bug.cgi?id=1541745
https://bugs.freedesktop.org/show_bug.cgi?id=101282

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
2018-02-26 16:41:42 -05:00
composite composite: Fix use-after-free in compReparentWindow 2018-02-23 12:12:15 -05:00
config config: fix NULL value detection for ID_INPUT being unset 2018-01-08 14:48:04 -05:00
damageext Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
dbe dbe: Unvalidated variable-length request in ProcDbeGetVisualInfo (CVE-2017-12177) 2017-10-10 23:33:44 +02:00
dix dix: avoid deferencing NULL PtrCtrl 2017-12-06 11:59:28 -05:00
doc Rewrite the byte swapping macros. 2017-04-25 15:01:23 -07:00
dri3 Build: Use dri3proto/libdrm CFLAGS 2017-09-20 13:25:46 -04:00
exa Add a Meson build system alongside autotools. 2017-04-26 15:25:27 -07:00
fb fb: Check whether the window is enabled directly 2017-09-13 11:10:56 -04:00
glamor glamor: unifdef XORG_VERSION_CURRENT 2018-02-26 16:38:36 -05:00
glx glx: Don't pass NULL to glxGetClient 2018-02-26 12:28:55 -05:00
hw modesetting: Do not close uninitialized dri2 screen 2018-02-26 16:41:42 -05:00
include meson: Make DGA extension optional 2018-02-19 13:14:43 -05:00
m4 Add ax_pthread.m4 to m4/ 2016-05-29 19:20:51 -07:00
man Xserver.man: document more transports for -nolisten & -listen options 2015-10-28 14:16:28 -04:00
mi mi: Mention extension loading in verbose logs 2018-02-21 13:24:29 -05:00
miext sync: Clean up a bit of header formatting. 2017-09-20 13:19:27 -04:00
os os: avoid uninitialized offsets in backtrace 2018-02-19 13:12:18 -05:00
present Revert "present: Only send PresentCompleteNotify events to the presenting client" 2018-01-24 11:40:50 +01:00
pseudoramiX Unvalidated lengths 2017-10-10 23:33:34 +02:00
randr randr: Fix rotation check in ProcRRSetScreenSize() 2018-02-01 16:36:59 -05:00
record Add a Meson build system alongside autotools. 2017-04-26 15:25:27 -07:00
render render: Simplify miCompositeRects 2018-02-26 10:02:24 -05:00
test miinitext: Load GLX on the mi path 2018-02-14 17:04:48 -05:00
Xext shm, xwayland: prefer atomic close-on-exec without O_TMPFILE 2018-02-02 15:28:46 -05:00
xfixes xfixes: Restore monitoring of animated cursors 2018-02-14 13:52:45 -05:00
Xi Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
xkb xkb: initialize tsyms 2017-11-06 16:49:11 -05:00
.appveyor.yml Add an .appveyor.yml for AppVeyor CI 2017-09-18 13:00:59 -04:00
.dir-locals.el Add .dir-locals.el 2013-08-17 12:17:36 +02:00
.gitignore .gitignore: Add new autotools file 'test-driver' 2014-04-21 13:41:42 -07:00
.travis.yml travis: Bump linux Dockerfile to v7 for new meson 2017-10-24 10:55:53 -04:00
autogen.sh autogen: Set a default subject prefix for patches 2016-02-08 17:41:38 -05:00
configure.ac glx: Use vnd layer for dispatch (v4) 2018-02-14 17:04:44 -05:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
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
fix-miregion Change region implementation names to eliminate the 'mi' prefix 2010-06-05 17:47:32 -07:00
fix-miregion-private Change region implementation names to eliminate the 'mi' prefix 2010-06-05 17:47:32 -07:00
fix-patch-whitespace Rename region macros to eliminate screen argument 2010-06-05 18:59:00 -07:00
fix-region Rename region macros to eliminate screen argument 2010-06-05 18:59:00 -07:00
Makefile.am automake: Fix 'make distcheck' 2018-01-22 17:19:03 -05:00
manpages.am xorg: Change __XCONFIGFILE__ to XCONFIGFILE (and DIR) to fix scan.c. 2017-04-25 15:01:23 -07:00
meson_options.txt meson: Make DGA extension optional 2018-02-19 13:14:43 -05:00
meson.build meson: Make DGA extension optional 2018-02-19 13:14:43 -05:00
README README: Add link to fd.o CoC 2017-04-11 08:51:34 -04:00
xorg-server.m4 macros: clarify documentation 2012-11-05 13:24:57 -06:00
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

					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

Please submit bug reports to the Xorg bugzilla:

        https://bugs.freedesktop.org/enter_bug.cgi?product=xorg

The master development code repository can be found at:

        git://anongit.freedesktop.org/git/xorg/xserver

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

For patch submission instructions, see:

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

For more information on the git code manager, see:

        https://wiki.x.org/wiki/GitPage

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