netdev - [PATCH] net: fix checking boundary of valid vlan id

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 30 Dec 2012 14:28:51 +0800
From:	akong@...hat.com
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net
Subject: [PATCH] net: fix checking boundary of valid vlan id

From: Amos Kong <akong@...hat.com>

4096 is not a valid vlan id.

Signed-off-by: Amos Kong <akong@...hat.com>
---
 net/bridge/netfilter/ebt_vlan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index eae67bf..b279ec0 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -121,8 +121,8 @@ static int ebt_vlan_mt_check(const struct xt_mtchk_param *par)
 	 * if_vlan.h: VLAN_N_VID 4096. */
 	if (GET_BITMASK(EBT_VLAN_ID)) {
 		if (!!info->id) { /* if id!=0 => check vid range */
-			if (info->id > VLAN_N_VID) {
-				pr_debug("id %d is out of range (1-4096)\n",
+			if (info->id >= VLAN_N_VID) {
+				pr_debug("id %d is out of range (1-4095)\n",
 					 info->id);
 				return -EINVAL;
 			}
-- 
1.7.11.7

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html