Description
Memory leak in the virgl_cmd_resource_unref function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_UNREF commands sent without detaching the backing storage beforehand.
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 | 1:2.8+dfsg-3 | — |
| Debian 13 | qemu | 1:2.8+dfsg-3 | — |
| Debian 12 | qemu | 1:2.8+dfsg-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.11 | USN-3261-1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.33 | USN-3261-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | qemu | 2.6.2-41.9.1 | SUSE-SU-2017:0625-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | qemu | 2.6.2-41.9.1 | SUSE-SU-2017:0625-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 6.1.0-32.1 | openSUSE-SU-2024:11287-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qemu | 2.8.1-r1 | — |
| Alpine v3.23 | qemu | 2.8.1-r1 | — |
| Alpine v3.22 | qemu | 2.8.1-r1 | — |
| Alpine v3.21 | qemu | 2.8.1-r1 | — |
| Alpine v3.20 | qemu | 2.8.1-r1 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qemu | 2.8.1-r1 | — |
| Alpine v3.18 | qemu | 2.8.1-r1 | — |
| Alpine v3.17 | qemu | 2.8.1-r1 | — |
| Alpine v3.16 | qemu | 2.8.1-r1 | — |
| Alpine v3.15 | qemu | 2.8.1-r1 | — |
| Alpine v3.14 | qemu | 2.8.1-r1 | — |
| Alpine v3.13 | qemu | 2.8.1-r1 | — |
| Alpine v3.12 | qemu | 2.8.1-r1 | — |
| Alpine v3.11 | qemu | 2.8.1-r1 | — |
| Alpine v3.10 | qemu | 2.8.1-r1 | — |
| Alpine v3.9 | qemu | 2.8.1-r1 | — |
| Alpine v3.8 | qemu | 2.8.1-r1 | — |
| Alpine v3.7 | qemu | 2.8.1-r1 | — |
| Alpine v3.6 | qemu | 2.8.1-r1 | — |
| Alpine v3.5 | qemu | 2.8.1.1-r0 | — |
Advisories 3
- USN-3261-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:0625-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11287-1 qemu-6.1.0-32.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1418382
- [oss-security] 20170202 Re: CVE request Qemu: display: virtio-gpu-3d: host memory leakage in virgl_cmd_resource_unref mailing-list
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=5e8e3c4c75c199aa1017db816fca02be2a9f8798
- 95993 vdb-entry
- GLSA-201702-28 vendor-advisory
- [oss-security] 20170201 CVE request Qemu: display: virtio-gpu-3d: host memory leakage in virgl_cmd_resource_unref mailing-list