ipv6: fix a typo in fib6_rule_lookup()

Yi Ren reported an issue discovered by syzkaller, and bisected
to the cited commit.

Many thanks to Yi, this trivial patch does not reflect the patient
work that has been done.

Fixes: d64a1f574a29 ("ipv6: honor RT6_LOOKUP_F_DST_NOREF in rule lookup logic")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Wei Wang <weiwan@google.com>
Bisected-and-reported-by: Yi Ren <c4tren@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 87f47bc55c5e3f5e5f522d153fad69d6d82e6332..6e2af411cd9cc4131c5d457e6d48f177fc6d4428 100644 (file)
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -318,7 +318,7 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
        if (rt->dst.error == -EAGAIN) {
                ip6_rt_put_flags(rt, flags);
                rt = net->ipv6.ip6_null_entry;
-               if (!(flags | RT6_LOOKUP_F_DST_NOREF))
+               if (!(flags & RT6_LOOKUP_F_DST_NOREF))
                        dst_hold(&rt->dst);
        }