From mboxrd@z Thu Jan  1 00:00:00 1970
From: hch@lst.de (Christoph Hellwig)
Date: Mon, 14 May 2018 14:44:14 +0200
Subject: [PATCH] nvme: fix KASAN warning when parsing host nqn
In-Reply-To: <20180514122312.62068-1-hare@suse.de>
References: <20180514122312.62068-1-hare@suse.de>
Message-ID: <20180514124414.GA25689@lst.de>

On Mon, May 14, 2018@02:23:12PM +0200, Hannes Reinecke wrote:
> -	host = kmalloc(sizeof(*host), GFP_KERNEL);
> +	host = kzalloc(sizeof(*host), GFP_KERNEL);
>  	if (!host)
>  		goto out_unlock;
>  
>  	kref_init(&host->ref);
> -	memcpy(host->nqn, hostnqn, NVMF_NQN_SIZE);
> +	memcpy(host->nqn, hostnqn, strlen(hostnqn));

That pattern is called strcpy :)  And we better use strlcpy here,
just in case.