[Patch] Uninitialized variable in drivers/net/wan/syncppp.c

[Eric Sesterhenn]

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@xxxxxx>

--- 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) {


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/