From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= <jg@lightnvm.io>
Date: Wed, 8 Nov 2017 10:59:03 +0100
Subject: nvme: compare NQN string with right size
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Patch-mainline: v4.15-rc1
Git-commit: a47619b5c6ead6c2e10b8114a5e9291a1679a7c3
References: FATE#323952, FATE#322506

Copy subnqns using NVMF_NQN_SIZE as it is < 256

Signed-off-by: Javier González <javier@cnexlabs.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/nvme/host/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1812,7 +1812,7 @@ static void nvme_init_subnqn(struct nvme
 
 	nqnlen = strnlen(id->subnqn, NVMF_NQN_SIZE);
 	if (nqnlen > 0 && nqnlen < NVMF_NQN_SIZE) {
-		strcpy(ctrl->subnqn, id->subnqn);
+		strncpy(ctrl->subnqn, id->subnqn, NVMF_NQN_SIZE);
 		return;
 	}