[PATCH net] Phonet: refcount leak in pep_sock_accep

sock_hold(sk) is invoked in pep_sock_accept(), but __sock_put(sk) is not
invoked in subsequent failure branches(pep_accept_conn() != 0).

Signed-off-by: Hangyu Hua <redacted>
---
 net/phonet/pep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index a1525916885a..b4f90afb0638 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c

@@ -868,6 +868,7 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
 
 	err = pep_accept_conn(newsk, skb);
 	if (err) {
+		__sock_put(sk);
 		sock_put(newsk);
 		newsk = NULL;
 		goto drop;

-- 
2.25.1

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski [off-list ref]:

On Thu,  9 Dec 2021 16:28:39 +0800 you wrote:

sock_hold(sk) is invoked in pep_sock_accept(), but __sock_put(sk) is not
invoked in subsequent failure branches(pep_accept_conn() != 0).

Signed-off-by: Hangyu Hua <redacted>
---
 net/phonet/pep.c | 1 +
 1 file changed, 1 insertion(+)

Here is the summary with links:
  - [net] Phonet: refcount leak in pep_sock_accep
    https://git.kernel.org/netdev/net/c/bcd0f9335332

You are awesome, thank you!
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