Description
A flaw was found in QEMU. When reading input audio in the virtio-snd device input callback, the `virtio_snd_pcm_in_cb` function did not check whether the iov could fit the data buffer, potentially leading to a heap out-of-bounds write. This issue exists due to an incomplete fix for CVE-2024-7730.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | qemu | 8.2.0 – ≤ 10.2.1 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| 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 9 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
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 | 1:10.2.2+ds-1 | — |
| Debian 13 | qemu | 1:10.0.10+ds-0+deb13u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | qemu +1 | No fix yet | — |
| Ubuntu 26.04 LTS | qemu +1 | No fix yet | — |
| Ubuntu 25.10 | qemu | 1:10.1.0+ds-5ubuntu2.6 | — |
| Ubuntu 24.04 LTS | qemu | 1:8.2.2+ds-0ubuntu1.16 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | qemu +1 | 9.2.4-150700.3.20.1 | SUSE-SU-2026:2385-1 |
| SLES 15 SP6 | qemu | 8.2.10-150600.3.49.1 | SUSE-SU-2026:2386-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | qemu | 8.2.10-150600.3.49.1 | SUSE-SU-2026:2386-1 |
| SLE Micro 6.2 | qemu | 10.0.9-160000.1.1 | SUSE-SU-2026:21235-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | qemu +1 | 10.0.9-160000.1.1 | openSUSE-SU-2026:20567-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 9.1.0-9 | — |
Advisories 5
- WID-SEC-2026-0566 QEMU (qemu-kvm: virtio-snd): Mehrere Schwachstellen ermöglichen Codeausführung und DoS BSI CERT-Bund (WID) · Jun 21, 2026
- SUSE-SU-2026:2386-1 Security update for qemu SUSE / openSUSE Security Updates · Jun 13, 2026
- SUSE-SU-2026:2385-1 Security update for qemu SUSE / openSUSE Security Updates · Jun 13, 2026
- SUSE-SU-2026:21235-1 Security update for qemu SUSE / openSUSE Security Updates · Apr 23, 2026
- openSUSE-SU-2026:20567-1 Security update for qemu SUSE / openSUSE Security Updates · Apr 22, 2026
References
- https://access.redhat.com/security/cve/CVE-2026-3195 vdb-entry
- RHBZ#2443817 issue-tracking