Description
A 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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | qemu | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 Advanced Virtualization | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 1:8.2.3+ds-1 | — |
| Debian 13 | qemu | 1:8.2.3+ds-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qemu | 1:8.2.2+ds-0ubuntu1.4 | USN-7094-1 |
| Ubuntu 22.04 LTS | qemu | 1:6.2+dfsg-2ubuntu6.24 | USN-7094-1 |
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.30 | USN-7094-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.42+esm2 | USN-7094-1 |
| Ubuntu Pro 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.51+esm3 | USN-7094-1 |
| Ubuntu Pro 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.47+esm4 | USN-7094-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | qemu | 8.2.7-15061.6.coco15sp6.1 | SUSE-SU-2024:4094-1, SUSE-SU-2024:3744-1 |
| SLES 15 SP6 | qemu-linux-user | 8.2.7-150600.3.20.1 | SUSE-SU-2024:4094-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.0 | qemu | 8.2.7-1.1 | SUSE-SU-2025:20076-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | qemu +1 | 8.2.7-150600.3.20.1 | SUSE-SU-2024:4094-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 8.2.0-16 | — |
Advisories 5
- USN-7094-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- SUSE-SU-2025:20076-1 Security update for qemu SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2024:3744-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4094-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1088 QEMU: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 4, 2025
References
- https://access.redhat.com/security/cve/CVE-2024-4693 vdb-entry
- RHBZ#2279965 issue-tracking