[PATCH 5.4 055/355] nvmet-tcp: fix header digest verification

[Greg Kroah-Hartman]

From: Amit Engel <amit.engel@xxxxxxxx>

[ Upstream commit 86aeda32b887cdaeb0f4b7bfc9971e36377181c7 ]

Pass the correct length to nvmet_tcp_verify_hdgst, which is the pdu
header length.  This fixes a wrong behaviour where header digest
verification passes although the digest is wrong.

Signed-off-by: Amit Engel <amit.engel@xxxxxxxx>
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/nvme/target/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index 1328ee373e596..6b3d1ba7db7ee 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -1020,7 +1020,7 @@ recv:
 	}
 
 	if (queue->hdr_digest &&
-	    nvmet_tcp_verify_hdgst(queue, &queue->pdu, queue->offset)) {
+	    nvmet_tcp_verify_hdgst(queue, &queue->pdu, hdr->hlen)) {
 		nvmet_tcp_fatal_error(queue); /* fatal */
 		return -EPROTO;
 	}
-- 
2.33.0