From 53e3e587a9bf08ed74527e81c4a01ec933706a26 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@airs.com>
Date: Fri, 22 Sep 2006 13:52:29 +0000
Subject: re PR other/29176 (Seg fault in demangler)

	PR other/29176
	* cp-demangle.c (d_substitution): Check for overflow when
	computing substitution index.

From-SVN: r117144
---
 libiberty/cp-demangle.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libiberty/cp-demangle.c')

diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
index c7ee878..2fa5978 100644
--- a/libiberty/cp-demangle.c
+++ b/libiberty/cp-demangle.c
@@ -2505,6 +2505,8 @@ d_substitution (struct d_info *di, int prefix)
 		id = id * 36 + c - 'A' + 10;
 	      else
 		return NULL;
+	      if (id < 0)
+		return NULL;
 	      c = d_next_char (di);
 	    }
 	  while (c != '_');
-- 
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