linux-kernel - Re: [PATCH] iommu: amd: call free_iova_fast with pfn in map

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Date:   Tue, 22 Jan 2019 11:57:47 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Jerry Snitselaar <jsnitsel@...hat.com>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Suravee Suthikulpanit <suravee.suthikulpanit@....com>
Subject: Re: [PATCH] iommu: amd: call free_iova_fast with pfn in map_sg

On Thu, Jan 17, 2019 at 12:29:02PM -0700, Jerry Snitselaar wrote:
> In the error path of map_sg, free_iova_fast is being called with
> address instead of the pfn. This results in a bad value getting into
> the rcache, and can result in hitting a BUG_ON when
> iova_magazine_free_pfns is called.
> 
> Cc: Joerg Roedel <joro@...tes.org>
> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@....com>
> Signed-off-by: Jerry Snitselaar <jsnitsel@...hat.com>

Applied, thanks.