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Chris Wright de139a3393 pci: check caps from sysfs file open to read device dependent config space ... The PCI config space bin_attr read handler has a hardcoded CAP_SYS_ADMIN check to verify privileges before allowing a user to read device dependent config space. This is meant to protect from an unprivileged user potentially locking up the box. When assigning a PCI device directly to a guest with libvirt and KVM, the sysfs config space file is chown'd to the unprivileged user that the KVM guest will run as. The guest needs to have full access to the device's config space since it's responsible for driving the device. However, despite being the owner of the sysfs file, the CAP_SYS_ADMIN check will not allow read access beyond the config header. With this patch we check privileges against the capabilities used when openining the sysfs file. The allows a privileged process to open the file and hand it to an unprivileged process, and the unprivileged process can still read all of the config space. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		15 years ago
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hotplug	sysfs: add struct file* to bin_attr callbacks	15 years ago
pcie	PCI aerdrv: use correct bit defines and add 2ms delay to aer_root_reset	15 years ago
.gitignore	…
Kconfig	…
Makefile	microblaze: Enable PCI, missing files	15 years ago
access.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
bus.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
dmar.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
hotplug-pci.c	…
hotplug.c	…
htirq.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
intel-iommu.c	VT-d: Change {un}map_range functions to implement {un}map interface	15 years ago
intr_remapping.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
intr_remapping.h	…
ioapic.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
iov.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
iova.c	…
irq.c	…
msi.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
msi.h	…
pci-acpi.c	…
pci-driver.c	…
pci-stub.c	…
pci-sysfs.c	pci: check caps from sysfs file open to read device dependent config space	15 years ago
pci.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	15 years ago
pci.h	PCI: make bitfield unsigned	15 years ago
probe.c	PCI: revert broken device warning	15 years ago
proc.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
quirks.c	PCI quirk: RS780/RS880: disable MSI behind the PCI bridge	15 years ago
remove.c	…
rom.c	…
search.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
setup-bus.c	Revert "PCI: update bridge resources to get more big ranges in PCI assign unssigned"	15 years ago
setup-irq.c	…
setup-res.c	PCI: for address space collisions, show conflicting resource	15 years ago
slot.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
syscall.c	…
vpd.c	…