linux-kernel - Re: [PATCH] nvmet-auth: update sc_c in target host hash calculation

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Message-ID: <9b8d8baf-022a-49a9-b8b9-db699125e064@suse.de>
Date: Wed, 29 Oct 2025 09:10:17 +0100
From: Hannes Reinecke <hare@...e.de>
To: alistair23@...il.com, kbusch@...nel.org, axboe@...nel.dk, hch@....de,
 sagi@...mberg.me, kch@...dia.com, linux-nvme@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org, Alistair Francis <alistair.francis@....com>
Subject: Re: [PATCH] nvmet-auth: update sc_c in target host hash calculation

On 10/29/25 05:53, alistair23@...il.com wrote:
> From: Alistair Francis <alistair.francis@....com>
> 
> Commit 7e091add9c43 "nvme-auth: update sc_c in host response" added
> the sc_c variable to the dhchap queue context structure which is
> appropriately set during negotiate and then used in the host response.
> 
> This breaks secure concat connections with a Linux target as the target
> code wasn't updated at the same time. This patch fixes this by adding a
> new sc_c variable to the host hash calculations.
> 
> Signed-off-by: Alistair Francis <alistair.francis@....com>
> ---
>   drivers/nvme/host/auth.c               | 1 +
>   drivers/nvme/target/auth.c             | 3 ++-
>   drivers/nvme/target/fabrics-cmd-auth.c | 1 +
>   drivers/nvme/target/nvmet.h            | 1 +
>   4 files changed, 5 insertions(+), 1 deletion(-)
> 
I've already send a similar patch for this, which actually should 
already have been merged.
Can you check if that works for you?

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@...e.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich