From 4135e588274e7b8ddeea95683f9d70f19d019f2e Mon Sep 17 00:00:00 2001 From: Kangjie Lu Date: Thu, 14 Mar 2019 01:30:59 -0500 Subject: [PATCH] scsi: qla4xxx: fix a potential NULL pointer dereference [ Upstream commit fba1bdd2a9a93f3e2181ec1936a3c2f6b37e7ed6 ] In case iscsi_lookup_endpoint fails, the fix returns -EINVAL to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu Acked-by: Manish Rangankar Reviewed-by: Mukesh Ojha Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin (Microsoft) --- drivers/scsi/qla4xxx/ql4_os.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 575445c761b4..5dd3e4e01b10 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -3204,6 +3204,8 @@ static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) return -EINVAL; ep = iscsi_lookup_endpoint(transport_fd); + if (!ep) + return -EINVAL; conn = cls_conn->dd_data; qla_conn = conn->dd_data; qla_conn->qla_ep = ep->dd_data; -- 2.11.0