]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
phonet: refcount leak in pep_sock_accep
authorHangyu Hua <hbh25y@gmail.com>
Thu, 9 Dec 2021 08:28:39 +0000 (16:28 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 Jan 2022 12:37:11 +0000 (13:37 +0100)
commit bcd0f93353326954817a4f9fa55ec57fb38acbb0 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>
net/phonet/pep.c

index 1e7945df399284fbdf0405cd6cfc093b7af03832..a734d47c5eb19266b71936307b6718fc8002b250 100644 (file)
@@ -878,6 +878,7 @@ 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;