tree 9eae17fb409fd5c4f0520df52e7fedc6302421c8
parent e52aece8809be6f4d1d9873fad2a710fa746d929
author Marc Zyngier <maz@kernel.org> 1586873408 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1589435840 +0200

KVM: arm: vgic: Fix limit condition when writing to GICD_I[CS]ACTIVER

commit 1c32ca5dc6d00012f0c964e5fdd7042fcc71efb1 upstream.

When deciding whether a guest has to be stopped we check whether this
is a private interrupt or not. Unfortunately, there's an off-by-one bug
here, and we fail to recognize a whole range of interrupts as being
global (GICv2 SPIs 32-63).

Fix the condition from > to be >=.

Cc: stable@vger.kernel.org
Fixes: abd7229626b93 ("KVM: arm/arm64: Simplify active_change_prepare and plug race")
Reported-by: André Przywara <andre.przywara@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>