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XLibre Xserver
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Jeremy Huddleston Sequoia 3db7e332d3 XQuartz: Make sure that darwin_all_modifier_mask_additions is 0-terminated 
Found by ASan

X.Org X Server 1.17.99.901 Build Date: 20151018
================================================================
==40471==ERROR: AddressSanitizer: global-buffer-overflow on address 0x000101fed7a4 at pc 0x000101584030 bp 0x70000029f920 sp 0x70000029f918
READ of size 4 at 0x000101fed7a4 thread T7
    #0 0x10158402f in DarwinEQInit darwinEvents.c:377
    #1 0x10157f3bc in InitInput darwin.c:566
    #2 0x101be87ad in dix_main main.c:268
    #3 0x10159131b in server_thread quartzStartup.c:66
    #4 0x7fff8a535c12 in _pthread_body (/usr/lib/system/libsystem_pthread.dylib+0x3c12)
    #5 0x7fff8a535b8f in _pthread_start (/usr/lib/system/libsystem_pthread.dylib+0x3b8f)
    #6 0x7fff8a533374 in thread_start (/usr/lib/system/libsystem_pthread.dylib+0x1374)

0x000101fed7a4 is located 0 bytes to the right of global variable 'darwin_all_modifier_mask_additions' defined in 'darwinEvents.c:181:12'
(0x101fed7a0) of size 4
SUMMARY: AddressSanitizer: global-buffer-overflow darwinEvents.c:377 DarwinEQInit
Shadow bytes around the buggy address:
  0x1000203fdaa0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000203fdab0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000203fdac0: f9 f9 f9 f9 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9
  0x1000203fdad0: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 00 00 00 00
  0x1000203fdae0: 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 00 f9 f9 f9
=>0x1000203fdaf0: f9 f9 f9 f9[04]f9 f9 f9 f9 f9 f9 f9 00 00 00 00
  0x1000203fdb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000203fdb10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000203fdb20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000203fdb30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000203fdb40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
Thread T7 created by T0 here:
    #0 0x10242ee99 in wrap_pthread_create
(/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/7.0.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib+0x37e99)
    #1 0x101591089 in create_thread quartzStartup.c:78
    #2 0x101590ed9 in QuartzInitServer quartzStartup.c:95
    #3 0x1015697eb in X11ApplicationMain X11Application.m:1277
    #4 0x101575dc0 in X11ControllerMain X11Controller.m:984
    #5 0x10159171a in server_main quartzStartup.c:127
    #6 0x101540fc0 in do_start_x11_server bundle-main.c:436
    #7 0x101544869 in _Xstart_x11_server mach_startupServer.c:189
    #8 0x101545c96 in mach_startup_server mach_startupServer.c:398
    #9 0x7fff8d1b70f3 in mach_msg_server (/usr/lib/system/libsystem_kernel.dylib+0x110f3)
    #10 0x1015416e7 in main bundle-main.c:774
    #11 0x7fff8bd975ac in start (/usr/lib/system/libdyld.dylib+0x35ac)
    #12 0x0  (<unknown module>)

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
 		2015-10-19 09:05:54 -07:00
Xext security: Silence some benign -Wformat warnings 2015-10-19 11:49:54 -04:00
Xi Xi: call UpdateDeviceState() even when the client is missing 2015-06-18 07:30:39 +10:00
composite composite: Factor out backing store transition 2015-09-24 13:01:51 -04:00
config config: remove 10-evdev.conf, let the evdev driver install that file 2015-05-18 13:41:09 +10:00
damageext Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
dbe Convert top level extensions to new *allocarray functions 2015-04-21 16:57:08 -07:00
dix dix: Silence -Wunused-variable warning by moving window.c off of legacy region defines 2015-10-19 11:52:03 -04:00
doc doc: Convert an \fP pair into appropriate tags. 2015-09-23 10:32:53 -04:00
dri3 dri3: static cleanup 2015-07-08 16:40:57 -04:00
exa exa: initialise mask_off_x and mask_off_y 2015-09-23 10:43:39 -04:00
fb Fix alphamap interactions with wfb 2015-09-29 12:21:34 -04:00
glamor glamor: Get rid of an extraneous ; at the end of a C source line 2015-09-30 10:24:33 -07:00
glx glx: Fix header length error checking in __glXDisp_RenderLarge 2015-10-19 11:51:58 -04:00
hw XQuartz: Make sure that darwin_all_modifier_mask_additions is 0-terminated 2015-10-19 09:05:54 -07:00
include kdrive: Delete unused TOUCHSCREEN define. 2015-10-06 10:43:05 -04:00
m4 configure.ac: remove remaining TLS references 2015-03-24 17:20:26 +00:00
man man: Fix case for MIT-unspecified. 2015-09-23 10:24:48 -04:00
mi mi: Correct a miscall of abs() to instead call fabs() 2015-10-19 11:49:52 -04:00
miext rootless: Fix bogus handling of broken root clip 2015-09-21 17:44:48 -04:00
os osinit: Silence -Wunused-variable warnings 2015-10-19 11:52:05 -04:00
present present: Don't stash the MSC value when present_get_ust_msc fails 2015-09-30 16:06:26 -04:00
pseudoramiX Convert top level extensions to new *allocarray functions 2015-04-21 16:57:08 -07:00
randr randr: Silence -Wshift-negative-value warnings 2015-10-19 11:51:52 -04:00
record Convert top level extensions to new *allocarray functions 2015-04-21 16:57:08 -07:00
render render: Propagate allocation failure from createSourcePicture() 2015-10-06 13:18:22 -04:00
test libxf86config: libxf86config_internal -> libxf86config 2015-09-23 14:29:21 -04:00
xfixes xfixes: Unexport xfixes.h 2015-07-08 16:40:58 -04:00
xkb xkb: Keyboard mouse button emulation should not suppress other keyboard events 2015-09-29 12:21:34 -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
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
Makefile.am DIST_SUBDIRS needs to include glamor, even if it isn't built 2014-02-13 15:25:56 -08:00
README packaging: provide a default README file #24206 2010-01-27 14:00:17 -08:00
autogen.sh autogen.sh: use quoted string variables 2015-03-13 12:31:21 +10:00
configure.ac libxf86config: Remove 2015-09-23 14:28:56 -04:00
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
manpages.am Xorg: Add a suid root wrapper 2014-03-12 08:50:05 +01:00
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

README 

					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:
http://en.wikipedia.org/wiki/X_server

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

        http://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

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

For patch submission instructions, see:

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

For more information on the git code manager, see:

        http://wiki.x.org/wiki/GitPage