linux-kernel - [PATCH 2/2 net-next] geneve: fix TOS inheriting for ipv6

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: <20220724003741.57816-3-matthias.may@westermo.com>
Date:   Sun, 24 Jul 2022 02:37:41 +0200
From:   Matthias May <matthias.may@...termo.com>
To:     <netdev@...r.kernel.org>
CC:     <davem@...emloft.net>, <yoshfuji@...ux-ipv6.org>,
        <dsahern@...nel.org>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <nicolas.dichtel@...nd.com>,
        <eyal.birger@...il.com>, <linux-kernel@...r.kernel.org>,
        Matthias May <matthias.may@...termo.com>
Subject: [PATCH 2/2 net-next] geneve: fix TOS inheriting for ipv6

The current code uses the RT_TOS macro to cut off the 6 DSCP
bits, down to the original 3 TOS bits.

Do not use this macro to get the prio for inheriting purposes.

Signed-off-by: Matthias May <matthias.may@...termo.com>
---
 drivers/net/geneve.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 4c380c06f178..e1a4480e6f17 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -877,8 +877,7 @@ static struct dst_entry *geneve_get_v6_dst(struct sk_buff *skb,
 		use_cache = false;
 	}
 
-	fl6->flowlabel = ip6_make_flowinfo(RT_TOS(prio),
-					   info->key.label);
+	fl6->flowlabel = ip6_make_flowinfo(prio, info->key.label);
 	dst_cache = (struct dst_cache *)&info->dst_cache;
 	if (use_cache) {
 		dst = dst_cache_get_ip6(dst_cache, &fl6->saddr);
-- 
2.35.1