summaryrefslogtreecommitdiffstats
path: root/include/acpi
diff options
context:
space:
mode:
authorAndre Przywara <andre.przywara@arm.com>2016-11-01 19:00:08 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2016-11-04 18:56:54 +0100
commit112b0b8f8f6e18d4695d21457961c0e1b322a1d7 (patch)
tree0145a35a2e65e9cbc713ec2d56dd04c3b9ea6216 /include/acpi
parentarm/arm64: KVM: Perform local TLB invalidation when multiplexing vcpus on a s... (diff)
downloadlinux-112b0b8f8f6e18d4695d21457961c0e1b322a1d7.tar.xz
linux-112b0b8f8f6e18d4695d21457961c0e1b322a1d7.zip
KVM: arm/arm64: vgic: Prevent access to invalid SPIs
In our VGIC implementation we limit the number of SPIs to a number that the userland application told us. Accordingly we limit the allocation of memory for virtual IRQs to that number. However in our MMIO dispatcher we didn't check if we ever access an IRQ beyond that limit, leading to out-of-bound accesses. Add a test against the number of allocated SPIs in check_region(). Adjust the VGIC_ADDR_TO_INT macro to avoid an actual division, which is not implemented on ARM(32). [maz: cleaned-up original patch] Cc: stable@vger.kernel.org Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'include/acpi')
0 files changed, 0 insertions, 0 deletions