On Sapphire Rapids and related platforms, the DSA and IAA devices have an erratum (INTEL-SA-01084) that causes direct access (for example, by using the ENQCMD or MOVDIR64 instructions) from untrusted applications to be a security problem.
CVE is Public Now: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01084.html
The fix went public today in Linus' tree with the following commits: 95feb3160eef ("VFIO: Add the SPR_DSA and SPR_IAX devices to the denylist") e11452eb071b ("dmaengine: idxd: add a new security check to deal with a hardware erratum") 6827738dc684 ("dmaengine: idxd: add a write() method for applications to submit work")
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2280396]
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Via RHSA-2024:4729 https://access.redhat.com/errata/RHSA-2024:4729
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Via RHSA-2024:4731 https://access.redhat.com/errata/RHSA-2024:4731
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:5102 https://access.redhat.com/errata/RHSA-2024:5102
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:5101 https://access.redhat.com/errata/RHSA-2024:5101
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2024:5256 https://access.redhat.com/errata/RHSA-2024:5256
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2024:5257 https://access.redhat.com/errata/RHSA-2024:5257
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2024:5281 https://access.redhat.com/errata/RHSA-2024:5281
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2024:5365 https://access.redhat.com/errata/RHSA-2024:5365
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2024:5364 https://access.redhat.com/errata/RHSA-2024:5364
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2024:5363 https://access.redhat.com/errata/RHSA-2024:5363
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2024:6206 https://access.redhat.com/errata/RHSA-2024:6206