[PATCH] nvmet-tcp: handle ICReq PDU received in NVMET_TCP_Q_LIVE state

[Varun Prakash]

If target receives ICReq PDU in queue state NVMET_TCP_Q_LIVE
then call nvmet_tcp_fatal_error() and return -EPROTO.

Signed-off-by: Varun Prakash <varun at chelsio.com>
---
 drivers/nvme/target/tcp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index a3694a32f6d5..02df2fc7dfe7 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -976,6 +976,13 @@ static int nvmet_tcp_done_recv_pdu(struct nvmet_tcp_queue *queue)
 		return nvmet_tcp_handle_icreq(queue);
 	}
 
+	if (unlikely(hdr->type == nvme_tcp_icreq)) {
+		pr_err("queue %d: received icreq pdu in state %d\n",
+			queue->idx, queue->state);
+		nvmet_tcp_fatal_error(queue);
+		return -EPROTO;
+	}
+
 	if (hdr->type == nvme_tcp_h2c_data) {
 		ret = nvmet_tcp_handle_h2c_data_pdu(queue);
 		if (unlikely(ret))
-- 
2.31.1