From: Eric Sesterhenn <snakebyte@gmx.de>
To: linux-kernel@vger.kernel.org
Subject: [Patch] Uninitialized variable in drivers/net/wan/syncppp.c
Date: Fri, 01 Sep 2006 01:13:22 +0200 [thread overview]
Message-ID: <1157066002.13592.3.camel@alice> (raw)
hi,
this was spotted by coverity (id #891), when
len is equal to 4, we dont call sppp_lcp_conf_parse_options(),
to initialize rmagic.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
--- linux-2.6.18-rc5/drivers/net/wan/syncppp.c.orig 2006-09-01 00:55:08.000000000 +0200
+++ linux-2.6.18-rc5/drivers/net/wan/syncppp.c 2006-09-01 00:55:45.000000000 +0200
@@ -505,14 +505,15 @@ static void sppp_lcp_input (struct sppp
skb->len, h);
break;
case LCP_CONF_REQ:
- if (len < 4) {
+ if (len <= 4) {
if (sp->pp_flags & PP_DEBUG)
printk (KERN_DEBUG"%s: invalid lcp configure request packet length: %d bytes\n",
dev->name, len);
break;
}
- if (len>4 && !sppp_lcp_conf_parse_options (sp, h, len, &rmagic))
+ if (!sppp_lcp_conf_parse_options (sp, h, len, &rmagic))
goto badreq;
+
if (rmagic == sp->lcp.magic) {
/* Local and remote magics equal -- loopback? */
if (sp->pp_loopcnt >= MAXALIVECNT*5) {
next reply other threads:[~2006-08-31 23:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-31 23:13 Eric Sesterhenn [this message]
2006-08-31 23:45 ` [Patch] Uninitialized variable in drivers/net/wan/syncppp.c Paul Fulghum
2006-09-01 0:26 ` Eric Sesterhenn
2006-09-01 1:01 ` Paul Fulghum
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