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| author | Bryce Harrington <bryce@canonical.com> | 2011-02-16 16:55:57 -0800 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2011-02-17 15:38:27 +1000 |
| commit | 649269d40667cfb387cb5286dd3519dd68f7dd80 (patch) | |
| tree | 99318684c2484ed0f2b2d2c97b37e133e9eb55d3 /Xi/xichangehierarchy.c | |
| parent | 31ddb7ef4f5bac2c13c199e74a0716e43b8dc38e (diff) | |
Check for OOM condition in XISendDeviceHierarchyEvent
When system is out of memory, calloc can fail returning a NULL pointer.
Check for this before dereferencing it, and bail out if it fails.
Ref.: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/720445
Signed-off-by: Bryce Harrington <bryce@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Diffstat (limited to 'Xi/xichangehierarchy.c')
| -rw-r--r-- | Xi/xichangehierarchy.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Xi/xichangehierarchy.c b/Xi/xichangehierarchy.c index b9cdedf77..21c74ed7a 100644 --- a/Xi/xichangehierarchy.c +++ b/Xi/xichangehierarchy.c @@ -70,6 +70,8 @@ void XISendDeviceHierarchyEvent(int flags[MAXDEVICES]) ev = calloc(1, sizeof(xXIHierarchyEvent) + MAXDEVICES * sizeof(xXIHierarchyInfo)); + if (!ev) + return; ev->type = GenericEvent; ev->extension = IReqCode; ev->evtype = XI_HierarchyChanged; |