netdev - [net-next-2.6 PATCH 4/7] enic: Use offsetof macro in vic tlv length calculation

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

Message-ID: <20100811045510.3877.69037.stgit@savbu-pc100.cisco.com>
Date:	Tue, 10 Aug 2010 21:55:10 -0700
From:	Roopa Prabhu <roprabhu@...co.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org
Subject: [net-next-2.6 PATCH 4/7] enic: Use offsetof macro in vic tlv length
	calculation

From: Roopa Prabhu <roprabhu@...co.com>



Signed-off-by: Scott Feldman <scofeldm@...co.com>
Signed-off-by: Roopa Prabhu <roprabhu@...co.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@...co.com>
---
 drivers/net/enic/vnic_vic.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)


diff --git a/drivers/net/enic/vnic_vic.c b/drivers/net/enic/vnic_vic.c
index 197c9d2..4725b79 100644
--- a/drivers/net/enic/vnic_vic.c
+++ b/drivers/net/enic/vnic_vic.c
@@ -54,8 +54,8 @@ int vic_provinfo_add_tlv(struct vic_provinfo *vp, u16 type, u16 length,
 	if (!vp || !value)
 		return -EINVAL;
 
-	if (ntohl(vp->length) + sizeof(*tlv) + length >
-		VIC_PROVINFO_MAX_TLV_DATA)
+	if (ntohl(vp->length) + offsetof(struct vic_provinfo_tlv, value) +
+		length > VIC_PROVINFO_MAX_TLV_DATA)
 		return -ENOMEM;
 
 	tlv = (struct vic_provinfo_tlv *)((u8 *)vp->tlv +
@@ -66,7 +66,8 @@ int vic_provinfo_add_tlv(struct vic_provinfo *vp, u16 type, u16 length,
 	memcpy(tlv->value, value, length);
 
 	vp->num_tlvs = htonl(ntohl(vp->num_tlvs) + 1);
-	vp->length = htonl(ntohl(vp->length) + sizeof(*tlv) + length);
+	vp->length = htonl(ntohl(vp->length) +
+		offsetof(struct vic_provinfo_tlv, value) + length);
 
 	return 0;
 }

--
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