Re: [PATCH] scsi: lpfc: Use after free in lpfc_rq_buf_free()

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To: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Subject: Re: [PATCH] scsi: lpfc: Use after free in lpfc_rq_buf_free()
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Tue, 28 Nov 2017 23:47:29 -0500
Cc: James Smart <james.smart@xxxxxxxxxxxx>, Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>, "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, kernel-janitors@xxxxxxxxxxxxxxx
In-reply-to: <20171122085803.lwajodogeyovzjoa@mwanda> (Dan Carpenter's message of "Wed, 22 Nov 2017 11:58:03 +0300")
Organization: Oracle Corporation
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux)

Dan,

> The error message dereferences "rqb_entry" so we need to print it first
> and then free the buffer.

Applied to 4.15/scsi-fixes. Thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

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References:
- [PATCH] scsi: lpfc: Use after free in lpfc_rq_buf_free()
  - From: Dan Carpenter

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