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From: Joe Perches <joe@perches.com>
To: Kees Cook <keescook@chromium.org>,
	"Martin K . Petersen" <martin.petersen@oracle.com>
Cc: Hannes Reinecke <hare@suse.de>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	Bradley Grove <linuxdrivers@attotech.com>,
	Artur Paszkiewicz <artur.paszkiewicz@intel.com>,
	linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
	linux-hardening@vger.kernel.org
Subject: Re: [PATCH 1/3] scsi: fcoe: Statically initialize flogi_maddr
Date: Fri, 28 May 2021 11:28:59 -0700	[thread overview]
Message-ID: <8a64b62949477b85576ab47e4705ca13fb555a9c.camel@perches.com> (raw)
In-Reply-To: <20210528181337.792268-2-keescook@chromium.org>

On Fri, 2021-05-28 at 11:13 -0700, Kees Cook wrote:
> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> field bounds checking for memcpy() using memcpy() with an inline const
> buffer and instead just statically initialize the destination array
> directly.
[]
> diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
[]
> @@ -293,7 +293,7 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe,
>  	struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe);
>  	struct netdev_hw_addr *ha;
>  	struct net_device *real_dev;
> -	u8 flogi_maddr[ETH_ALEN];
> +	u8 flogi_maddr[ETH_ALEN] = FC_FCOE_FLOGI_MAC;

static const

> @@ -442,7 +441,7 @@ static void fcoe_interface_remove(struct fcoe_interface *fcoe)
>  {
>  	struct net_device *netdev = fcoe->netdev;
>  	struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe);
> -	u8 flogi_maddr[ETH_ALEN];
> +	u8 flogi_maddr[ETH_ALEN] = FC_FCOE_FLOGI_MAC;

etc...



  reply	other threads:[~2021-05-28 18:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-28 18:13 [PATCH 0/3] scsi: Fix a handful of memcpy() field overflows Kees Cook
2021-05-28 18:13 ` [PATCH 1/3] scsi: fcoe: Statically initialize flogi_maddr Kees Cook
2021-05-28 18:28   ` Joe Perches [this message]
2021-05-28 18:29     ` Kees Cook
2021-05-28 18:13 ` [PATCH 2/3] scsi: esas2r: Switch to flexible array member Kees Cook
2021-05-28 20:26   ` Gustavo A. R. Silva
2021-05-28 18:13 ` [PATCH 3/3] scsi: isci: Use correctly sized target buffer for memcpy() Kees Cook
2021-05-28 20:29   ` Gustavo A. R. Silva
2021-06-02  3:38 ` [PATCH 0/3] scsi: Fix a handful of memcpy() field overflows Martin K. Petersen
2021-06-02 18:00   ` Kees Cook
2021-06-08  3:05 ` Martin K. Petersen

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