diff options
| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2021-11-15 13:16:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-11-15 17:27:39 +0300 |
| commit | 938cca9e4109b30ee1d476904538225a825e54eb (patch) | |
| tree | 9df7f8766c30609396f9e852fe9ef703b834303a | |
| parent | 271351d255b09e39c7f6437738cba595f9b235be (diff) | |
| download | linux-938cca9e4109b30ee1d476904538225a825e54eb.tar.xz | |
sock: fix /proc/net/sockstat underflow in sk_clone_lock()
sk_clone_lock() needs to call sock_inuse_add(1) before entering the
sk_free_unlock_clone() error path, for __sk_free() from sk_free() from
sk_free_unlock_clone() calls sock_inuse_add(-1).
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 648845ab7e200993 ("sock: Move the socket inuse to namespace.")
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/sock.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 8f2b2f2c0e7b..41e91d0f7061 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2124,8 +2124,10 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) newsk->sk_prot_creator = prot; /* SANITY */ - if (likely(newsk->sk_net_refcnt)) + if (likely(newsk->sk_net_refcnt)) { get_net(sock_net(newsk)); + sock_inuse_add(sock_net(newsk), 1); + } sk_node_init(&newsk->sk_node); sock_lock_init(newsk); bh_lock_sock(newsk); @@ -2197,8 +2199,6 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) newsk->sk_err_soft = 0; newsk->sk_priority = 0; newsk->sk_incoming_cpu = raw_smp_processor_id(); - if (likely(newsk->sk_net_refcnt)) - sock_inuse_add(sock_net(newsk), 1); /* Before updating sk_refcnt, we must commit prior changes to memory * (Documentation/RCU/rculist_nulls.rst for details) |