Re: [PATCH] scsi: qla2xxx: Fix use after free in debug code

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To: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Subject: Re: [PATCH] scsi: qla2xxx: Fix use after free in debug code
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Thu, 05 Aug 2021 23:12:32 -0400
Cc: Nilesh Javali <njavali@xxxxxxxxxxx>, GR-QLogic-Storage-Upstream@xxxxxxxxxxx, "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, Quinn Tran <qutran@xxxxxxxxxxx>, Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>, Larry Wisneski <Larry.Wisneski@xxxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, kernel-janitors@xxxxxxxxxxxxxxx
In-reply-to: <20210803155625.GA22735@kili> (Dan Carpenter's message of "Tue, 3 Aug 2021 18:56:25 +0300")
Organization: Oracle Corporation
References: <20210803155625.GA22735@kili>

Dan,

> The sp->free(sp); call frees "sp" and then the debug code dereferences
> it on the next line.  Swap the order.

Applied to 5.15/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

References:
- [PATCH] scsi: qla2xxx: Fix use after free in debug code
  - From: Dan Carpenter

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