Commit e513480e authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont Committed by David S. Miller
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Phonet: fix potential use-after-free in pep_sock_close()



sk_common_release() might destroy our last reference to the socket.
So an extra temporary reference is needed during cleanup.
Signed-off-by: default avatarRémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7466a384
......@@ -626,6 +626,7 @@ static void pep_sock_close(struct sock *sk, long timeout)
struct pep_sock *pn = pep_sk(sk);
int ifindex = 0;
sock_hold(sk); /* keep a reference after sk_common_release() */
sk_common_release(sk);
lock_sock(sk);
......@@ -644,6 +645,7 @@ static void pep_sock_close(struct sock *sk, long timeout)
if (ifindex)
gprs_detach(sk);
sock_put(sk);
}
static int pep_wait_connreq(struct sock *sk, int noblock)
......
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