From: Thomas Graf <tgraf@suug.ch>
Date: Fri, 10 Nov 2006 22:11:04 +0000 (-0800)
Subject: [IPv6] rules: Remove bogus tos validation check
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f465e489c457821751f6253abaaf28c10f9d8895;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[IPv6] rules: Remove bogus tos validation check

Noticed by Al Viro:
     (frh->tos & ~IPV6_FLOWINFO_MASK))
where IPV6_FLOWINFO_MASK is htonl(0xfffffff) and frh->tos
is u8, which makes no sense here...

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index d587dde5897e..0862809ffcf7 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -142,8 +142,7 @@ static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
 	int err = -EINVAL;
 	struct fib6_rule *rule6 = (struct fib6_rule *) rule;
 
-	if (frh->src_len > 128 || frh->dst_len > 128 ||
-	    (frh->tos & ~IPV6_FLOWINFO_MASK))
+	if (frh->src_len > 128 || frh->dst_len > 128)
 		goto errout;
 
 	if (rule->action == FR_ACT_TO_TBL) {