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-rw-r--r--Xext/geext.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Xext/geext.c b/Xext/geext.c
index b37c1a0bd..a6fbb0947 100644
--- a/Xext/geext.c
+++ b/Xext/geext.c
@@ -185,7 +185,7 @@ SGEGenericEvent(xEvent* from, xEvent* to)
xGenericEvent* gefrom = (xGenericEvent*)from;
xGenericEvent* geto = (xGenericEvent*)to;
- if (gefrom->extension > MAXEXTENSIONS)
+ if ((gefrom->extension & 0x7f) > MAXEXTENSIONS)
{
ErrorF("GE: Invalid extension offset for event.\n");
return;