From: Jean Tourrilhes <jt@bougret.hpl.hp.com>
To: "David S. Miller" <davem@redhat.com>,
Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: [PATCH 2.6 IrDA] gcc warning fix
Date: Wed, 7 Jan 2004 18:35:14 -0800 [thread overview]
Message-ID: <20040108023514.GF13620@bougret.hpl.hp.com> (raw)
ir2609_afirda_max_string.diff :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
o [FEATURE] Fix a gcc warning
diff -u -p linux/net/irda/af_irda.d5.c linux/net/irda/af_irda.c
--- linux/net/irda/af_irda.d5.c Wed Nov 19 16:21:42 2003
+++ linux/net/irda/af_irda.c Wed Nov 19 16:26:04 2003
@@ -1890,11 +1890,10 @@ static int irda_setsockopt(struct socket
case IAS_STRING:
/* Should check charset & co */
/* Check length */
- if(ias_opt->attribute.irda_attrib_string.len >
- IAS_MAX_STRING) {
- kfree(ias_opt);
- return -EINVAL;
- }
+ /* The length is encoded in a __u8, and
+ * IAS_MAX_STRING == 256, so there is no way
+ * userspace can pass us a string too large.
+ * Jean II */
/* NULL terminate the string (avoid troubles) */
ias_opt->attribute.irda_attrib_string.string[ias_opt->attribute.irda_attrib_string.len] = '\0';
/* Add a string attribute */
reply other threads:[~2004-01-08 2:38 UTC|newest]
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