Alex Williamson 083e750c9f vfio/fsl-mc: Block calling interrupt handler without trigger ... [ Upstream commit 7447d911af ] The eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is initially NULL and may become NULL if the user sets the trigger eventfd to -1. The interrupt handler itself is guaranteed that trigger is always valid between request_irq() and free_irq(), but the loopback testing mechanisms to invoke the handler function need to test the trigger. The triggering and setting ioctl paths both make use of igate and are therefore mutually exclusive. The vfio-fsl-mc driver does not make use of irqfds, nor does it support any sort of masking operations, therefore unlike vfio-pci and vfio-platform, the flow can remain essentially unchanged. Cc: Diana Craciun <diana.craciun@oss.nxp.com> Cc: <stable@vger.kernel.org> Fixes: cc0ee20bd9 ("vfio/fsl-mc: trigger an interrupt via eventfd") Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Link: https://lore.kernel.org/r/20240308230557.805580-8-alex.williamson@redhat.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-04-03 15:19:47 +02:00
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fsl-mc	vfio/fsl-mc: Block calling interrupt handler without trigger	2024-04-03 15:19:47 +02:00
mdev	vfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent()	2023-10-06 14:56:45 +02:00
pci	vfio/pci: Create persistent INTx handler	2024-04-03 15:19:46 +02:00
platform	vfio/platform: Create persistent IRQ handlers	2024-04-03 15:19:46 +02:00
container.c	vfio: Use GFP_KERNEL_ACCOUNT for userspace persistent allocations	2024-04-03 15:19:34 +02:00
iova_bitmap.c	iommufd/iova_bitmap: Consider page offset for the pages to be pinned	2024-03-01 13:26:35 +01:00
Kconfig	vfio: Introduce the DMA logging feature support	2022-09-08 12:59:00 -06:00
Makefile	vfio: Move container code into drivers/vfio/container.c	2022-09-22 15:46:06 -06:00
vfio.h	vfio: Make the group FD disassociate from the iommu_group	2022-10-07 08:10:52 -06:00
vfio_iommu_spapr_tce.c
vfio_iommu_type1.c	vfio/type1: fix cap_migration information leak	2023-09-13 09:42:47 +02:00
vfio_main.c	vfio: Export the device set open count	2022-11-10 12:03:36 -07:00
vfio_spapr_eeh.c
virqfd.c	vfio: Introduce interface to flush virqfd inject workqueue	2024-04-03 15:19:46 +02:00