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ipv6: use np->final in inet6_sk_rebuild_header()

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Instead of using an automatic variable, use np->final
to get rid of the stack canary in inet6_sk_rebuild_header().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260206173426.1638518-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet
2026-02-06 17:34:21 +00:00
committed by Jakub Kicinski
parent 03ff0cb1a9
commit 3d3f075e80
1 changed files with 2 additions and 2 deletions
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4
net/ipv6/af_inet6.c
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@@ -825,7 +825,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet_sock *inet = inet_sk(sk);
struct in6_addr *final_p, final;
struct in6_addr *final_p;
struct dst_entry *dst;
struct flowi6 *fl6;
@@ -847,7 +847,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
security_sk_classify_flow(sk, flowi6_to_flowi_common(fl6));
rcu_read_lock();
final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final);
final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &np->final);
rcu_read_unlock();
dst = ip6_dst_lookup_flow(sock_net(sk), sk, fl6, final_p);