DescriptionA flaw was found in the QEMU Virtio PCI Bindings (hw/virtio/virtio-pci.c). An improper release and use of the irqfd for vector 0 during the boot process leads to a guest triggerable crash via vhost_net_stop(). This flaw allows a malicious guest to crash the QEMU process on the host.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)buster1:3.1+dfsg-8+deb10u8fixed
buster (security)1:3.1+dfsg-8+deb10u12fixed
bullseye (security)1:5.2+dfsg-11+deb11u2fixed
sid, trixie1:8.2.3+ds-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcebuster(not affected)
qemusourcebullseye(not affected)
qemusourcebookworm(not affected)


[bookworm] - qemu <not-affected> (Vulnerable code not present)
[bullseye] - qemu <not-affected> (Vulnerable code not present)
[buster] - qemu <not-affected> (Vulnerable code not present)
Introduced by: (v8.0.0-rc0)
Fixed by: (v8.2.3)

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