From: Dan Carpenter <dan.carpenter@oracle.com>
To: Samuel Ortiz <samuel@sortiz.org>
Cc: "David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] irda: small read beyond end of array in debug code
Date: Wed, 27 Feb 2013 08:15:02 +0300 [thread overview]
Message-ID: <20130227051502.GC22703@longonot.mountain> (raw)
charset comes from skb->data. It's a number in the 0-255 range.
If we have debugging turned on then this could cause a read beyond
the end of the array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/net/irda/iriap.c b/net/irda/iriap.c
index e71e85b..29340a9 100644
--- a/net/irda/iriap.c
+++ b/net/irda/iriap.c
@@ -495,8 +495,11 @@ static void iriap_getvaluebyclass_confirm(struct iriap_cb *self,
/* case CS_ISO_8859_9: */
/* case CS_UNICODE: */
default:
- IRDA_DEBUG(0, "%s(), charset %s, not supported\n",
- __func__, ias_charset_types[charset]);
+ IRDA_DEBUG(0, "%s(), charset [%d] %s, not supported\n",
+ __func__, charset,
+ charset < ARRAY_SIZE(ias_charset_types) ?
+ ias_charset_types[charset] :
+ "(unknown)");
/* Aborting, close connection! */
iriap_disconnect_request(self);
next reply other threads:[~2013-02-27 5:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-27 5:15 Dan Carpenter [this message]
2013-02-27 18:12 ` [patch] irda: small read beyond end of array in debug code David Miller
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