linux-kernel - Re: [PATCH v3 08/18] nvmet-fcloop: add missing fcloop_callback_host

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <931e5618-f85c-43ed-96a2-696c23a57857@suse.de>
Date: Tue, 18 Mar 2025 12:12:52 +0100
From: Hannes Reinecke <hare@...e.de>
To: Daniel Wagner <wagi@...nel.org>, James Smart <james.smart@...adcom.com>,
 Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>,
 Chaitanya Kulkarni <kch@...dia.com>
Cc: Keith Busch <kbusch@...nel.org>, linux-nvme@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 08/18] nvmet-fcloop: add missing
 fcloop_callback_host_done

On 3/18/25 11:40, Daniel Wagner wrote:
> Add the missing fcloop_call_host_done calls so that the caller
> frees resources when something goes wrong.
> 
> Signed-off-by: Daniel Wagner <wagi@...nel.org>
> ---
>   drivers/nvme/target/fcloop.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c
> index cadf081e3653c641b0afcb0968fc74299ab941d1..de23f0bc5599b6f8dd5c3713dd38c952e6fdda28 100644
> --- a/drivers/nvme/target/fcloop.c
> +++ b/drivers/nvme/target/fcloop.c
> @@ -966,9 +966,11 @@ fcloop_fcp_abort(struct nvme_fc_local_port *localport,
>   	}
>   	spin_unlock(&inireq->inilock);
>   
> -	if (!tfcp_req)
> +	if (!tfcp_req) {
>   		/* abort has already been called */
> +		fcloop_call_host_done(fcpreq, tfcp_req, -ECANCELED);

Am I misreading things or will fcloop_call_host_done() crash on a NULL 
tfcp_req ?
In patch 3 fcloop_tfcp_req_put() doesn't check for a NULL argument...

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