Commit a916170d authored by Feng Li's avatar Feng Li Committed by Ben Hutchings

iscsi-target: Fix panic when adding second TCP connection to iSCSI session

commit 8abc718d upstream.

In MC/S scenario, the conn->sess has been set NULL in
iscsi_login_non_zero_tsih_s1 when the second connection comes here,
then kernel panic.

The conn->sess will be assigned in iscsi_login_non_zero_tsih_s2. So
we should check whether it's NULL before calling.
Signed-off-by: default avatarFeng Li <lifeng1519@gmail.com>
Tested-by: default avatarSumit Rai <sumit.rai@calsoftinc.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
parent c3e4f0cb
......@@ -1418,8 +1418,9 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
}
login->zero_tsih = zero_tsih;
conn->sess->se_sess->sup_prot_ops =
conn->conn_transport->iscsit_get_sup_prot_ops(conn);
if (conn->sess)
conn->sess->se_sess->sup_prot_ops =
conn->conn_transport->iscsit_get_sup_prot_ops(conn);
tpg = conn->tpg;
if (!tpg) {
......
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