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linux/drivers/vdpa
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Danilo Krummrich 85bb534ff1 vdpa: use generic driver_override infrastructure 
When a driver is probed through __driver_attach(), the bus' match()
callback is called without the device lock held, thus accessing the
driver_override field without a lock, which can cause a UAF.

Fix this by using the driver-core driver_override infrastructure taking
care of proper locking internally.

Note that calling match() from __driver_attach() without the device lock
held is intentional. [1]

Link: https://lore.kernel.org/driver-core/DGRGTIRHA62X.3RY09D9SOK77P@kernel.org/ [1]
Reported-by: Gui-Dong Han <hanguidong02@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220789
Fixes: 539fec78ed ("vdpa: add driver_override support")
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20260324005919.2408620-9-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-04-04 00:47:50 +02:00
..
alibaba vdpa: introduce map ops 2025-10-01 07:24:55 -04:00
ifcvf Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
mlx5 Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
octeon_ep virtio: vdpa: Fix reference count leak in octep_sriov_enable() 2025-11-27 02:03:06 -05:00
pds Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
solidrun Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
vdpa_sim Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
vdpa_user Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
virtio_pci Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
Kconfig vduse: switch to use virtio map API instead of DMA API 2025-10-01 07:24:55 -04:00
Makefile virtio: vdpa: vDPA driver for Marvell OCTEON DPU devices 2024-07-09 08:42:39 -04:00
vdpa.c vdpa: use generic driver_override infrastructure 2026-04-04 00:47:50 +02:00