From 50e6d42c1967cbd3b07441876af2a7ff2bbbf63f Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Fri, 30 Sep 2016 11:35:54 +0200
Subject: ash: Avoid overflow for very long variable name
Upstream commit:
Date: Tue, 3 Jul 2012 17:32:33 +0800
Avoid overflow for very long variable name
Otherwise, this:
$ perl -le 'print "v"x(2**31+1) ."=1"' | dash
provokes integer overflow
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
shell/ash.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/shell/ash.c b/shell/ash.c
index 59905aa7b..a1b211ae0 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -11274,7 +11274,7 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs)
/* NB: syntax parameter fits into smallint */
/* c parameter is an unsigned char or PEOF or PEOA */
char *out;
- int len;
+ size_t len;
char line[EOFMARKLEN + 1];
struct nodelist *bqlist;
smallint quotef;
--
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