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-rw-r--r--nx-X11/programs/Xserver/dix/dispatch.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nx-X11/programs/Xserver/dix/dispatch.c b/nx-X11/programs/Xserver/dix/dispatch.c
index 5ad2f5af2..ab1064051 100644
--- a/nx-X11/programs/Xserver/dix/dispatch.c
+++ b/nx-X11/programs/Xserver/dix/dispatch.c
@@ -2071,7 +2071,7 @@ ProcPutImage(register ClientPtr client)
tmpImage = (char *)&stuff[1];
lengthProto = length;
- if (lengthProto >= (INT32_MAX / stuff->height))
+ if (stuff->height != 0 && lengthProto >= (INT32_MAX / stuff->height))
return BadLength;
if (((((lengthProto * stuff->height) + (unsigned)3) >> 2) +