8360fa3a32
- Fix CVE-2021-3527 in usb/redir: usb-redir-avoid-dynamic-stack-allocation.patch - Fix issues found upstream: hw-block-nvme-consider-metadata-read-aio.patch sockets-update-SOCKET_ADDRESS_TYPE_FD-li.patch vfio-ccw-Permit-missing-IRQs.patch vhost-user-blk-Check-that-num-queues-is-.patch vhost-user-blk-Don-t-reconnect-during-in.patch vhost-user-blk-Fail-gracefully-on-too-la.patch vhost-user-blk-Get-more-feature-flags-fr.patch vhost-user-blk-Make-sure-to-set-Error-on.patch virtio-blk-Fix-rollback-path-in-virtio_b.patch virtio-Fail-if-iommu_platform-is-request.patch virtiofsd-Fix-side-effect-in-assert.patch monitor-qmp-fix-race-on-CHR_EVENT_CLOSED.patch OBS-URL: https://build.opensuse.org/request/show/895224 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=650
45 lines
1.8 KiB
Diff
45 lines
1.8 KiB
Diff
From: Kevin Wolf <kwolf@redhat.com>
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Date: Thu, 29 Apr 2021 19:13:15 +0200
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Subject: virtio: Fail if iommu_platform is requested, but unsupported
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Git-commit: 04ceb61a4075fadbf374ef89662c41999da83489
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Commit 2943b53f6 (' virtio: force VIRTIO_F_IOMMU_PLATFORM') made sure
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that vhost can't just reject VIRTIO_F_IOMMU_PLATFORM when it was
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requested. However, just adding it back to the negotiated flags isn't
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right either because it promises support to the guest that the device
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actually doesn't support. One example of a vhost-user device that
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doesn't have support for the flag is the vhost-user-blk export of QEMU.
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Instead of successfully creating a device that doesn't work, just fail
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to plug the device when it doesn't support the feature, but it was
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requested. This results in much clearer error messages.
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Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935019
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
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Message-Id: <20210429171316.162022-6-kwolf@redhat.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Jose R. Ziviani <jziviani@suse.de>
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---
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hw/virtio/virtio-bus.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/hw/virtio/virtio-bus.c b/hw/virtio/virtio-bus.c
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index d6332d45c3b201d6528d84306da9..859978d24877a04ed5eaa03d060d 100644
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--- a/hw/virtio/virtio-bus.c
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+++ b/hw/virtio/virtio-bus.c
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@@ -69,6 +69,11 @@ void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp)
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return;
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}
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+ if (has_iommu && !virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM)) {
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+ error_setg(errp, "iommu_platform=true is not supported by the device");
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+ return;
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+ }
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+
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if (klass->device_plugged != NULL) {
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klass->device_plugged(qbus->parent, &local_err);
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}
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