A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur. This flaw allows a guest user/process to cause this denial of service on the host.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade qemu | Jul 30, 2024 | May 4, 2020 |
| Gentoo Linux | — | Upgrade app-emulation/qemu. | Nov 12, 2020 | May 4, 2020 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 4, 2020 |
| Suse | — | Upgrade qemu-hw-display-virtio-vgaUpgrade qemu-x86Upgrade qemuUpgrade qemu-hw-display-qxlUpgrade qemu-sgabiosUpgrade qemu-hw-display-virtio-gpuUpgrade qemu-ui-cursesUpgrade qemu-armUpgrade qemu-kvmUpgrade qemu-vgabiosUpgrade qemu-audio-alsaUpgrade qemu-audio-paUpgrade qemu-chardev-baumUpgrade qemu-ui-openglUpgrade qemu-ui-spice-appUpgrade qemu-block-iscsiUpgrade qemu-langUpgrade qemu-hw-s390x-virtio-gpu-ccwUpgrade qemu-s390xUpgrade qemu-ksmUpgrade qemu-ui-spice-coreUpgrade qemu-skibootUpgrade qemu-block-sshUpgrade qemu-hw-display-virtio-gpu-pciUpgrade qemu-seabiosUpgrade qemu-ui-gtkUpgrade qemu-hw-usb-redirectUpgrade qemu-toolsUpgrade qemu-chardev-spiceUpgrade qemu-guest-agentUpgrade qemu-ppcUpgrade qemu-block-curlUpgrade qemu-audio-spiceUpgrade qemu-block-rbdUpgrade qemu-ipxe | Feb 4, 2022 | May 4, 2020 |
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