diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-06-17 14:43:35 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-10 09:49:37 -0700 |
| commit | da75b45af7778af80c7c1d9853868e9bb4b75065 (patch) | |
| tree | ac609ab43e64264a837e9a4f703f697333435449 /mm/interval_tree.c | |
| parent | aae3d9fecc22c1c7565c94f0818704a1908543ce (diff) | |
KVM: arm/arm64: vgic: Avoid injecting reserved IRQ numbers
commit 4839ddc27b7212ec58874f62c97da7400c8523be upstream.
Commit fd1d0ddf2ae9 (KVM: arm/arm64: check IRQ number on userland
injection) rightly limited the range of interrupts userspace can
inject in a guest, but failed to consider the (unlikely) case where
a guest is configured with 1024 interrupts.
In this case, interrupts ranging from 1020 to 1023 are unuseable,
as they have a special meaning for the GIC CPU interface.
Make sure that these number cannot be used as an IRQ. Also delete
a redundant (and similarily buggy) check in kvm_set_irq.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Cc: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/interval_tree.c')
0 files changed, 0 insertions, 0 deletions