[PATCH 5.10 072/151] nvmet-tcp: do not continue for invalid icreq

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5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hannes Reinecke <hare@xxxxxxx>

[ Upstream commit 0889d13b9e1cbef49e802ae09f3b516911ad82a1 ]

When the length check for an icreq sqe fails we should not
continue processing but rather return immediately as all
other contents of that sqe cannot be relied on.

Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/nvme/target/tcp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index d70a2fa4ba45f..e493fc709065a 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -846,6 +846,7 @@ static int nvmet_tcp_handle_icreq(struct nvmet_tcp_queue *queue)
 		pr_err("bad nvme-tcp pdu length (%d)\n",
 			le32_to_cpu(icreq->hdr.plen));
 		nvmet_tcp_fatal_error(queue);
+		return -EPROTO;
 	}
 
 	if (icreq->pfv != NVME_TCP_PFV_1_0) {
-- 
2.43.0







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