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Xi: handle allocation failure in ProcXGetDeviceDontPropagateList()

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Reported in #1817:

xwayland-24.1.6/redhat-linux-build/../Xi/getprop.c:163:25:
 warning[-Wanalyzer-possible-null-dereference]:
 dereference of possibly-NULL ‘buf’
xwayland-24.1.6/redhat-linux-build/../Xi/getprop.c:121:19:
 acquire_memory: this call could return NULL

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2075>
This commit is contained in:
Alan Coopersmith 2025-10-05 17:32:45 -07:00 • committed by Marge Bot
parent 90c8429d35
commit 7b18313e2a
1 changed files with 2 additions and 0 deletions
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2
Xi/getprop.c
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@ -118,6 +118,8 @@ ProcXGetDeviceDontPropagateList(ClientPtr client)
if (count) { if (count) {
rep.count = count; rep.count = count;
buf = xallocarray(rep.count, sizeof(XEventClass)); buf = xallocarray(rep.count, sizeof(XEventClass));
if (buf == NULL)
return BadAlloc;
rep.length = bytes_to_int32(rep.count * sizeof(XEventClass)); rep.length = bytes_to_int32(rep.count * sizeof(XEventClass));
tbuf = buf; tbuf = buf;