22 lines
728 B
C
22 lines
728 B
C
$NetBSD: patch-include_dix.h,v 1.1 2015/04/03 09:46:18 tnn Exp $
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X.Org Security Advisory: Dec. 9, 2014
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Protocol handling issues in X Window System servers
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--- include/dix.h.orig 2012-05-17 17:09:04.000000000 +0000
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+++ include/dix.h
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@@ -72,8 +72,13 @@ SOFTWARE.
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if ((sizeof(req) >> 2) > client->req_len )\
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return(BadLength)
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+#define REQUEST_AT_LEAST_EXTRA_SIZE(req, extra) \
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+ if (((sizeof(req) + ((uint64_t) extra)) >> 2) > client->req_len ) \
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+ return(BadLength)
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+
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#define REQUEST_FIXED_SIZE(req, n)\
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if (((sizeof(req) >> 2) > client->req_len) || \
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+ (((n) >> 2) >= client->req_len) || \
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(((sizeof(req) + (n) + 3) >> 2) != client->req_len)) \
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return(BadLength)
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