[PATCH 07/29] barriers: Don't allow destroying other client's barriers
Peter Hutterer
peter.hutterer at who-t.net
Tue Dec 11 23:19:00 PST 2012
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
Xi/xibarriers.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Xi/xibarriers.c b/Xi/xibarriers.c
index f16094d..86e811e 100644
--- a/Xi/xibarriers.c
+++ b/Xi/xibarriers.c
@@ -534,6 +534,9 @@ XIDestroyPointerBarrier(ClientPtr client,
return err;
}
+ if (CLIENT_ID(stuff->barrier) != client->index)
+ return BadAccess;
+
FreeResource(stuff->barrier, RT_NONE);
return Success;
}
--
1.8.0.1
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