linux-kernel - Re: [PATCH v6 1/5] KVM: arm64: Block cacheable PFNMAP mapping

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Message-ID: <20250526152514.GE9786@nvidia.com>
Date: Mon, 26 May 2025 12:25:14 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: ankita@...dia.com
Cc: maz@...nel.org, oliver.upton@...ux.dev, joey.gouly@....com,
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Subject: Re: [PATCH v6 1/5] KVM: arm64: Block cacheable PFNMAP mapping

On Sat, May 24, 2025 at 01:39:39AM +0000, ankita@...dia.com wrote:
> From: Ankit Agrawal <ankita@...dia.com>
> 
> Fixes a security bug due to mismatched attributes between S1 and
> S2 mapping.
> 
> Currently, it is possible for a region to be cacheable in S1, but
> mapped

"cachable in the userspace VMA"

Jason