linux-kernel - Re: [PATCH 1/1] iommu/vtd: Fix NULL pointer dereference in prq_event

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Message-ID: <20181106154842.f7wqijqesjuuqk7n@8bytes.org>
Date:   Tue, 6 Nov 2018 16:48:42 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Lu Baolu <baolu.lu@...ux.intel.com>
Cc:     David Woodhouse <dwmw2@...radead.org>, ashok.raj@...el.com,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Sohil Mehta <sohil.mehta@...el.com>
Subject: Re: [PATCH 1/1] iommu/vtd: Fix NULL pointer dereference in
 prq_event_thread()

On Mon, Nov 05, 2018 at 10:18:58AM +0800, Lu Baolu wrote:
> When handling page request without pasid event, go to "no_pasid"
> branch instead of "bad_req". Otherwise, a NULL pointer deference
> will happen there.
> 
> Cc: Ashok Raj <ashok.raj@...el.com>
> Cc: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Cc: Sohil Mehta <sohil.mehta@...el.com>
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> ---
>  drivers/iommu/intel-svm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied for v4.20, thanks.