diff options
| author | Jonathan Corbet <corbet@lwn.net> | 2021-10-04 16:44:16 -0600 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2021-10-04 16:44:16 -0600 |
| commit | b718f9d919d16fb7b97a890f74d34593d9cecd20 (patch) | |
| tree | ed38d58283ae36e0478bac2e0d244e06dbcc2f1c /net/mptcp/token.c | |
| parent | 250a0a5ba9d2cfbdb7c77b421ff1e03d630bea46 (diff) | |
| parent | 9e1ff307c779ce1f0f810c7ecce3d95bbae40896 (diff) | |
Merge tag 'v5.15-rc4' into docs-next
This is needed to get a docs fix that entered via the DRM tree; testers
have requested it so that PDF builds in docs-next work again.
Diffstat (limited to 'net/mptcp/token.c')
| -rw-r--r-- | net/mptcp/token.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/mptcp/token.c b/net/mptcp/token.c index a98e554b034f..e581b341c5be 100644 --- a/net/mptcp/token.c +++ b/net/mptcp/token.c @@ -231,6 +231,7 @@ found: /** * mptcp_token_get_sock - retrieve mptcp connection sock using its token + * @net: restrict to this namespace * @token: token of the mptcp connection to retrieve * * This function returns the mptcp connection structure with the given token. @@ -238,7 +239,7 @@ found: * * returns NULL if no connection with the given token value exists. */ -struct mptcp_sock *mptcp_token_get_sock(u32 token) +struct mptcp_sock *mptcp_token_get_sock(struct net *net, u32 token) { struct hlist_nulls_node *pos; struct token_bucket *bucket; @@ -251,11 +252,15 @@ struct mptcp_sock *mptcp_token_get_sock(u32 token) again: sk_nulls_for_each_rcu(sk, pos, &bucket->msk_chain) { msk = mptcp_sk(sk); - if (READ_ONCE(msk->token) != token) + if (READ_ONCE(msk->token) != token || + !net_eq(sock_net(sk), net)) continue; + if (!refcount_inc_not_zero(&sk->sk_refcnt)) goto not_found; - if (READ_ONCE(msk->token) != token) { + + if (READ_ONCE(msk->token) != token || + !net_eq(sock_net(sk), net)) { sock_put(sk); goto again; } |