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xserver/Xext
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Alan Coopersmith 0211de37b3 Xext/sync: avoid null dereference if SysCounterGetPrivate() returns NULL 
Reported in #1817:

xwayland-24.1.6/redhat-linux-build/../Xext/sync.c:2664:9: danger: dereference of NULL ‘SysCounterGetPrivate(pCounter)’
# 2662|           SyncCounter *counter = pCounter;
# 2663|           IdleCounterPriv *priv = SysCounterGetPrivate(counter);
# 2664|->         deviceid = priv->deviceid;
# 2665|       }
# 2666|       else

xwayland-24.1.6/redhat-linux-build/../Xext/sync.c:2677:14: danger: dereference of NULL ‘SysCounterGetPrivate(pCounter)’
# 2675|       SyncCounter *counter = pCounter;
# 2676|       IdleCounterPriv *priv = SysCounterGetPrivate(counter);
# 2677|->     int64_t *less = priv->value_less;
# 2678|       int64_t *greater = priv->value_greater;
# 2679|       int64_t idle, old_idle;

xwayland-24.1.6/redhat-linux-build/../Xext/sync.c:2767:14: danger: dereference of NULL ‘SysCounterGetPrivate(pCounter)’
# 2765|       SyncCounter *counter = pCounter;
# 2766|       IdleCounterPriv *priv = SysCounterGetPrivate(counter);
# 2767|->     int64_t *less = priv->value_less;
# 2768|       int64_t *greater = priv->value_greater;
# 2769|       int64_t idle;

xwayland-24.1.6/redhat-linux-build/../Xext/sync.c:2800:14: danger: dereference of NULL ‘SysCounterGetPrivate(pCounter)’
# 2798|       SyncCounter *counter = pCounter;
# 2799|       IdleCounterPriv *priv = SysCounterGetPrivate(counter);
# 2800|->     int64_t *less = priv->value_less;
# 2801|       int64_t *greater = priv->value_greater;
# 2802|       Bool registered = (less || greater);

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2072>
2025-10-07 23:23:06 +00:00
..
bigreq.c Xext: bigreq: drop swapping request length fields 2025-02-06 22:28:49 +00:00
dpms.c Revert "os: move out extension disable flags to corresponing extensions" 2025-06-17 20:54:49 +00:00
dpmsproc.h dpms: Consolidate a bunch of stuff into Xext/dpms.c 2017-03-27 15:59:47 -04:00
geext.c Revert "Xext: geext: drop unused GEInitEvent()" 2025-06-24 11:23:14 -07:00
geext.h Revert "Xext: geext: drop unused GEInitEvent()" 2025-06-24 11:23:14 -07:00
hashtable.c drop obsolete HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
hashtable.h Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
meson.build Revert "panoramix: don't install panoramiX.h and panoramiXsrv.h" 2025-06-24 11:23:14 -07:00
panoramiX.c panoramix: avoid null dereference in PanoramiXConsolidate() 2025-09-20 16:45:59 -07:00
panoramiX.h Xext: drop _PANORAMIX_SERVER 2024-06-23 19:31:46 +00:00
panoramiXh.h Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
panoramiXprocs.c dix: unexport Ones() 2024-10-26 16:35:57 +00:00
panoramiXsrv.h Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
panoramiXSwap.c Xext: panoramiX: drop now obsolete swap procs 2025-02-06 22:28:51 +00:00
saver.c Revert "dix: unexport cursor refcounting functions" 2025-09-06 17:01:39 +00:00
security.c Revert "os: move out extension disable flags to corresponing extensions" 2025-06-17 20:54:49 +00:00
securitysrv.h Xext: securitysrv.h: drop hacks for including secur.h 2024-06-23 19:20:12 +00:00
shape.c Revert "Xext: shape: clean up Xinerama dispatch" 2025-08-19 23:56:27 +00:00
shm.c Xext/shm: avoid null dereference in ShmInitScreenPriv() 2025-10-07 23:23:05 +00:00
shmint.h xext: Fix shmint.h to not use headers outside of sdk_HEADERS 2013-11-14 10:22:15 +09:00
sleepuntil.c drop obsolete HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
sleepuntil.h Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
sync.c Xext/sync: avoid null dereference if SysCounterGetPrivate() returns NULL 2025-10-07 23:23:06 +00:00
syncsdk.h xsync: Add resource inside of SyncCreate, export SyncCreate 2019-04-17 14:01:17 -07:00
syncsrv.h sync: Convert from "CARD64" to int64_t. 2017-09-20 13:19:27 -04:00
vidmode.c Xext: vidmode: drop now obsolete swap procs 2025-02-06 22:28:52 +00:00
xace.c os: unexport ClientIsLocal() 2025-02-18 10:53:44 +00:00
xace.h Strip trailing whitespace from source files 2025-10-05 11:56:48 -07:00
xacestr.h Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
xcmisc.c Xext: xcmisc: drop now obsolete swap procs 2025-02-06 22:28:52 +00:00
xf86bigfont.c xf86bigfont: fix -Werror=unused-variable build failure 2025-08-10 10:09:14 -07:00
xf86bigfontsrv.h Move extension initialisation prototypes into extinit.h 2012-07-09 23:06:41 -07:00
xres.c Revert "os: move out extension disable flags to corresponing extensions" 2025-06-17 20:54:49 +00:00
xselinux.h include: unpexport SELINUX_* consts from include/global.h 2024-03-25 19:40:04 +00:00
xselinux_ext.c Xext: selinux: use static reply struct init on declaration 2025-02-17 18:58:10 +00:00
xselinux_hooks.c os: split off internal definitions from client.h 2024-10-10 13:45:29 +00:00
xselinux_label.c drop obsolete HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
xselinuxint.h include: drop obsolete registry.h 2024-03-03 23:20:06 +00:00
xtest.c Revert "os: move out extension disable flags to corresponing extensions" 2025-06-17 20:54:49 +00:00
xvdisp.c Xext: xv: drop now obsolete swap procs 2025-02-06 22:28:52 +00:00
xvdisp.h Fix swapped Xv dispatch under Xinerama. 2007-12-02 14:15:36 -05:00
xvdix.h Revert "xv: unexport XvScreenRec and XvScreenPtr" 2025-02-07 10:08:41 +01:00
xvdix_priv.h Revert "xv: unexport XvScreenRec and XvScreenPtr" 2025-02-07 10:08:41 +01:00
xvmain.c treewide: NULL-protect ScreenRec->DestroyPixmap() calls 2025-02-06 23:02:06 +00:00
xvmc.c Revert "xvmc: move over protocol version defines into xvmc.c" 2025-06-22 09:17:25 -07:00
xvmcext.h xvmc: unexport XvMCFindXvImage() 2024-10-10 19:59:48 +00:00