From: Eric Auger <eric.auger@redhat.com> To: eric.auger.pro@gmail.com, eric.auger@redhat.com, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, maz@kernel.org, drjones@redhat.com, alexandru.elisei@arm.com Cc: james.morse@arm.com, suzuki.poulose@arm.com, shuah@kernel.org, pbonzini@redhat.com Subject: [PATCH v6 2/9] KVM: arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION read Date: Mon, 5 Apr 2021 18:39:34 +0200 [thread overview] Message-ID: <20210405163941.510258-3-eric.auger@redhat.com> (raw) In-Reply-To: <20210405163941.510258-1-eric.auger@redhat.com> The doc says: "The characteristics of a specific redistributor region can be read by presetting the index field in the attr data. Only valid for KVM_DEV_TYPE_ARM_VGIC_V3" Unfortunately the existing code fails to read the input attr data. Fixes: 04c110932225 ("KVM: arm/arm64: Implement KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION") Cc: stable@vger.kernel.org#v4.17+ Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com> --- v1 -> v2: - in the commit message, remove the statement that the index always is 0 - add Alexandru's R-b --- arch/arm64/kvm/vgic/vgic-kvm-device.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vgic-kvm-device.c index 44419679f91a..2f66cf247282 100644 --- a/arch/arm64/kvm/vgic/vgic-kvm-device.c +++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c @@ -226,6 +226,9 @@ static int vgic_get_common_attr(struct kvm_device *dev, u64 addr; unsigned long type = (unsigned long)attr->attr; + if (copy_from_user(&addr, uaddr, sizeof(addr))) + return -EFAULT; + r = kvm_vgic_addr(dev->kvm, type, &addr, false); if (r) return (r == -ENODEV) ? -ENXIO : r; -- 2.26.3
WARNING: multiple messages have this Message-ID (diff)
From: Eric Auger <eric.auger@redhat.com> To: eric.auger.pro@gmail.com, eric.auger@redhat.com, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, maz@kernel.org, drjones@redhat.com, alexandru.elisei@arm.com Cc: shuah@kernel.org, pbonzini@redhat.com Subject: [PATCH v6 2/9] KVM: arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION read Date: Mon, 5 Apr 2021 18:39:34 +0200 [thread overview] Message-ID: <20210405163941.510258-3-eric.auger@redhat.com> (raw) In-Reply-To: <20210405163941.510258-1-eric.auger@redhat.com> The doc says: "The characteristics of a specific redistributor region can be read by presetting the index field in the attr data. Only valid for KVM_DEV_TYPE_ARM_VGIC_V3" Unfortunately the existing code fails to read the input attr data. Fixes: 04c110932225 ("KVM: arm/arm64: Implement KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION") Cc: stable@vger.kernel.org#v4.17+ Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com> --- v1 -> v2: - in the commit message, remove the statement that the index always is 0 - add Alexandru's R-b --- arch/arm64/kvm/vgic/vgic-kvm-device.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vgic-kvm-device.c index 44419679f91a..2f66cf247282 100644 --- a/arch/arm64/kvm/vgic/vgic-kvm-device.c +++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c @@ -226,6 +226,9 @@ static int vgic_get_common_attr(struct kvm_device *dev, u64 addr; unsigned long type = (unsigned long)attr->attr; + if (copy_from_user(&addr, uaddr, sizeof(addr))) + return -EFAULT; + r = kvm_vgic_addr(dev->kvm, type, &addr, false); if (r) return (r == -ENODEV) ? -ENXIO : r; -- 2.26.3 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2021-04-05 16:40 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-05 16:39 [PATCH v6 0/9] KVM/ARM: Some vgic fixes and init sequence KVM selftests Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` [PATCH v6 1/9] KVM: arm64: vgic-v3: Fix some error codes when setting RDIST base Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` Eric Auger [this message] 2021-04-05 16:39 ` [PATCH v6 2/9] KVM: arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION read Eric Auger 2021-04-05 16:39 ` [PATCH v6 3/9] KVM: arm64: vgic-v3: Fix error handling in vgic_v3_set_redist_base() Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` [PATCH v6 4/9] KVM: arm/arm64: vgic: Reset base address on kvm_vgic_dist_destroy() Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` [PATCH v6 5/9] docs: kvm: devices/arm-vgic-v3: enhance KVM_DEV_ARM_VGIC_CTRL_INIT doc Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` [PATCH v6 6/9] KVM: arm64: Simplify argument passing to vgic_uaccess_[read|write] Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` [PATCH v6 7/9] kvm: arm64: vgic-v3: Introduce vgic_v3_free_redist_region() Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` [PATCH v6 8/9] KVM: arm64: vgic-v3: Expose GICR_TYPER.Last for userspace Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-05 16:39 ` [PATCH v6 9/9] KVM: selftests: aarch64/vgic-v3 init sequence tests Eric Auger 2021-04-05 16:39 ` Eric Auger 2021-04-06 15:09 ` Andrew Jones 2021-04-06 15:09 ` Andrew Jones 2021-04-06 15:19 ` Marc Zyngier 2021-04-06 15:19 ` Marc Zyngier 2021-04-07 10:14 ` Auger Eric 2021-04-07 10:14 ` Auger Eric 2021-04-07 10:58 ` Andrew Jones 2021-04-07 10:58 ` Andrew Jones 2021-04-06 13:55 ` [PATCH v6 0/9] KVM/ARM: Some vgic fixes and init sequence KVM selftests Marc Zyngier 2021-04-06 13:55 ` Marc Zyngier
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