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xserver/Xext
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Alan Coopersmith ad999d0c9d Xext/sync: Avoid dereference of invalid pointer if malloc() failed 
Reported incorrectly in #1817 as:

xwayland-24.1.6/redhat-linux-build/../Xext/sync.c:2835:33: acquire_memory: allocated here
xwayland-24.1.6/redhat-linux-build/../Xext/sync.c:2843:12: danger: ‘priv’ leaks here; was allocated at [(30)](sarif:/runs/0/results/5/codeFlows/0/threadFlows/0/locations/29)

but the "leak" is really saving the pointer in an uninitalized pointer in
a structure that was already freed when the malloc of the SysCounterInfo
struct failed in SyncCreateSystemCounter(), because it returned the address
of the freed struct instead of NULL to indicate failure.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
(cherry picked from commit 6034ce11b6)

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2076>
2025-10-21 08:56:39 +02:00
..
bigreq.c dix: unexport global variables 2024-03-09 17:23:43 +00:00
dpms.c dpms: Add support for DPMSInfoNotify event from DPMS 1.2 (xorgproto) 2023-12-18 16:35:51 +03:00
dpmsproc.h dpms: Consolidate a bunch of stuff into Xext/dpms.c 2017-03-27 15:59:47 -04:00
geext.c More missing version checks in SProcs 2021-08-08 12:43:01 +00:00
geext.h Move extension initialisation prototypes into extinit.h 2012-07-09 23:06:41 -07:00
geint.h xge: Hide some implementation details 2015-07-08 16:40:58 -04:00
hashtable.c dix: Fix undefined shift in ht_generic_hash 2019-10-15 14:06:30 -04:00
hashtable.h Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
meson.build Drop Xorg DDX 2024-04-12 10:40:05 +02:00
panoramiX.c drop remains of DMX 2024-03-05 16:57:52 +01:00
panoramiX.h Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
panoramiXh.h Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
panoramiXprocs.c dix: Call SourceValidate before GetImage 2019-10-30 16:26:01 +00:00
panoramiXsrv.h Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
panoramiXSwap.c dispatch: Mark swapped dispatch as _X_COLD 2017-03-01 10:16:20 -05:00
saver.c Xext: free the screen saver resource when replacing it 2022-12-14 11:02:40 +10:00
security.c dix: unexport CloseDownClient() 2024-03-13 00:47:36 +00:00
securitysrv.h Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
shape.c dispatch: Mark swapped dispatch as _X_COLD 2017-03-01 10:16:20 -05:00
shm.c Xext/shm: avoid null dereference in ShmInitScreenPriv() 2025-10-21 08:56:39 +02:00
shmint.h xext: Fix shmint.h to not use headers outside of sdk_HEADERS 2013-11-14 10:22:15 +09:00
sleepuntil.c os: Don't crash in AttendClient if the client is gone 2019-11-19 10:15:05 -08:00
sleepuntil.h Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
sync.c Xext/sync: Avoid dereference of invalid pointer if malloc() failed 2025-10-21 08:56:39 +02:00
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 Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
xace.c xace: drop duplicate export of XaceHooks from .c source 2024-03-03 22:34:26 +00:00
xace.h xace: Remove the audit hooks and tune dispatch 2016-06-10 13:26:19 -04:00
xacestr.h Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
xcmisc.c dispatch: Mark swapped dispatch as _X_COLD 2017-03-01 10:16:20 -05:00
xf86bigfont.c consolidate MITSHM and HAS_SHM symbols 2024-03-03 23:07:18 +00:00
xf86bigfontsrv.h Move extension initialisation prototypes into extinit.h 2012-07-09 23:06:41 -07:00
xres.c include: drop obsolete registry.h 2024-03-03 23:20:06 +00:00
xselinux.h include: unpexport SELINUX_* consts from include/global.h 2024-03-25 19:40:04 +00:00
xselinux_ext.c os: move SELinux enforcement state to the extension 2024-03-25 19:40:04 +00:00
xselinux_hooks.c Xext: fix missing include of <errno.h> 2024-03-21 17:32:30 +01:00
xselinux_label.c include: drop obsolete registry.h 2024-03-03 23:20:06 +00:00
xselinuxint.h include: drop obsolete registry.h 2024-03-03 23:20:06 +00:00
xtest.c dix: initialize the XTest sendEventsProc for all devices 2024-01-09 00:45:31 +00:00
xvdisp.c Unvalidated lengths 2017-10-10 23:33:34 +02:00
xvdisp.h Fix swapped Xv dispatch under Xinerama. 2007-12-02 14:15:36 -05:00
xvdix.h Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
xvmain.c Xext: free the XvRTVideoNotify when turning off from the same client 2022-12-14 11:02:06 +10:00
xvmc.c dispatch: Mark swapped dispatch as _X_COLD 2017-03-01 10:16:20 -05:00
xvmcext.h Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00