[PATCH v6 08/12] PCI: liveupdate: Inherit ACS flags in incoming preserved devices

Jason Gunthorpe jgg at nvidia.com
Mon Jun 8 11:16:40 PDT 2026


On Mon, Jun 08, 2026 at 10:49:29AM +0000, Pranjal Shrivastava wrote:

> My point was that a FW exploit can meddle with the bitfields of the
> ACS_CTRL to spoof and mis-report the ACS flags.

Devices can also ignore the ACS flags. I don't think this is an area
where we should be worrying about devices being actively hostile.

Jason



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