diff options
| author | Ricardo Koller <ricarkol@google.com> | 2021-10-05 04:19:14 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-10-11 11:31:42 +0300 |
| commit | 2ec02f6c64f043a249850c835ca7975c3a155d8b (patch) | |
| tree | cae71cd969d0cacb50cbcd1d8410379c7893ca56 /arch/arm64/kvm/vgic | |
| parent | c56a87da0a7fa14180082249ac954c7ebc9e74e1 (diff) | |
| download | linux-2ec02f6c64f043a249850c835ca7975c3a155d8b.tar.xz | |
KVM: arm64: vgic-v3: Check ITS region is not above the VM IPA size
Verify that the ITS region does not extend beyond the VM-specified IPA
range (phys_size).
base + size > phys_size AND base < phys_size
Add the missing check into vgic_its_set_attr() which is called when
setting the region.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-5-ricarkol@google.com
Diffstat (limited to 'arch/arm64/kvm/vgic')
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic-its.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c index 61728c543eb9..ad55bb8cd30f 100644 --- a/arch/arm64/kvm/vgic/vgic-its.c +++ b/arch/arm64/kvm/vgic/vgic-its.c @@ -2710,8 +2710,8 @@ static int vgic_its_set_attr(struct kvm_device *dev, if (copy_from_user(&addr, uaddr, sizeof(addr))) return -EFAULT; - ret = vgic_check_ioaddr(dev->kvm, &its->vgic_its_base, - addr, SZ_64K); + ret = vgic_check_iorange(dev->kvm, its->vgic_its_base, + addr, SZ_64K, KVM_VGIC_V3_ITS_SIZE); if (ret) return ret; |