linux-kernel - [PATCH 0/3] iommufd: Avoid PRI Response Failure

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240710083341.44617-1-baolu.lu@linux.intel.com>
Date: Wed, 10 Jul 2024 16:33:38 +0800
From: Lu Baolu <baolu.lu@...ux.intel.com>
To: Jason Gunthorpe <jgg@...pe.ca>,
	Kevin Tian <kevin.tian@...el.com>,
	Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>,
	Robin Murphy <robin.murphy@....com>,
	Nicolin Chen <nicolinc@...dia.com>,
	Yi Liu <yi.l.liu@...el.com>
Cc: iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH 0/3] iommufd: Avoid PRI Response Failure

This series is a follow-up for the discussion that happened here.

https://lore.kernel.org/linux-iommu/20240709173643.GI14050@ziepe.ca/

It prevents user space from responding to a group of page faults with a
response code other than IOMMUFD_PAGE_RESP_SUCCESS and
IOMMUFD_PAGE_RESP_INVALID, which will be treated by the device as
Response Failure according to the PCI spec.

Please help review and comment.

Lu Baolu (3):
  iommufd: Remove IOMMUFD_PAGE_RESP_FAILURE
  iommufd: Add check on user response code
  iommu: Convert response code from failure to invalid

 include/uapi/linux/iommufd.h  | 4 ----
 drivers/iommu/io-pgfault.c    | 2 +-
 drivers/iommu/iommufd/fault.c | 6 ++++++
 3 files changed, 7 insertions(+), 5 deletions(-)

-- 
2.34.1