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phonet: refcount leak in pep_sock_accep

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commit bcd0f93353 upstream.

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 <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20211209082839.33985-1-hbh25y@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Aayush Agarwal <aayush.a.agarwal@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hangyu Hua 2021-12-09 16:28:39 +08:00 • committed by Justin Hammond
parent 2c2d7f76e6
commit 7ddc5a2eb0
1 changed files with 1 additions and 0 deletions
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1
net/phonet/pep.c
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@ -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;