linux-kernel - [GIT PULL] VFIO fixes for v6.19-rc4

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Message-ID: <20251230141739.7e11a0c4.alex@shazbot.org>
Date: Tue, 30 Dec 2025 14:17:39 -0700
From: Alex Williamson <alex@...zbot.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: <linux-kernel@...r.kernel.org>, "kvm@...r.kernel.org"
 <kvm@...r.kernel.org>
Subject: [GIT PULL] VFIO fixes for v6.19-rc4

Hi Linus,

The following changes since commit 9448598b22c50c8a5bb77a9103e2d49f134c9578:

  Linux 6.19-rc2 (2025-12-21 15:52:04 -0800)

are available in the Git repository at:

  https://github.com/awilliam/linux-vfio.git tags/vfio-v6.19-rc4

for you to fetch changes up to acf44a2361b8d6356b71a970ab016065b5123b0e:

  vfio/xe: Fix use-after-free in xe_vfio_pci_alloc_file() (2025-12-28 12:42:46 -0700)

----------------------------------------------------------------
VFIO fixes for v6.19-rc4

 - Restrict ROM access to dword to resolve a regression introduced
   with qword access seen on some Intel NICs.  Update VGA region
   access to the same given lack of precedent for 64-bit users.
   (Kevin Tian)

 - Fix missing .get_region_info_caps callback in the xe-vfio-pci
   variant driver due to integration through the DRM tree.
   (Michal Wajdeczko)

 - Add aligned 64-bit access macros to tools/include/linux/types.h,
   allowing removal of uapi/linux/type.h includes from various
   vfio selftest, resolving redefinition warnings for integration
   with KVM selftests. (David Matlack)

 - Fix error path memory leak in pds-vfio-pci variant driver.
   (Zilin Guan)

 - Fix error path use-after-free in xe-vfio-pci variant driver.
   (Alper Ak)

----------------------------------------------------------------
Alper Ak (1):
      vfio/xe: Fix use-after-free in xe_vfio_pci_alloc_file()

David Matlack (2):
      tools include: Add definitions for __aligned_{l,b}e64
      vfio: selftests: Drop <uapi/linux/types.h> includes

Kevin Tian (2):
      vfio/pci: Disable qword access to the PCI ROM bar
      vfio/pci: Disable qword access to the VGA region

Michal Wajdeczko (1):
      vfio/xe: Add default handler for .get_region_info_caps

Zilin Guan (1):
      vfio/pds: Fix memory leak in pds_vfio_dirty_enable()

 drivers/vfio/pci/nvgrace-gpu/main.c                |  4 ++--
 drivers/vfio/pci/pds/dirty.c                       |  7 ++++--
 drivers/vfio/pci/vfio_pci_rdwr.c                   | 25 ++++++++++++++++------
 drivers/vfio/pci/xe/main.c                         |  5 ++++-
 include/linux/vfio_pci_core.h                      | 10 ++++++++-
 tools/include/linux/types.h                        |  8 +++++++
 .../vfio/lib/include/libvfio/iova_allocator.h      |  1 -
 tools/testing/selftests/vfio/lib/iommu.c           |  1 -
 tools/testing/selftests/vfio/lib/iova_allocator.c  |  1 -
 tools/testing/selftests/vfio/lib/vfio_pci_device.c |  1 -
 .../testing/selftests/vfio/vfio_dma_mapping_test.c |  1 -
 .../selftests/vfio/vfio_iommufd_setup_test.c       |  1 -
 12 files changed, 46 insertions(+), 19 deletions(-)