Description
A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | qemu-kvm | Affected QEMU version: 6.2.0 | — |
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 | 1:7.0+dfsg-1 | — |
| Debian 13 | qemu | 1:7.0+dfsg-1 | — |
| Debian 12 | qemu | 1:7.0+dfsg-1 | — |
| Debian 11 | qemu | 1:5.2+dfsg-11+deb11u2 | DSA-5133-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | qemu | 1:6.2+dfsg-2ubuntu6.2 | USN-5489-1 |
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.23 | USN-5489-1 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.40 | USN-5489-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | qemu-img +21 | 17:6.2.0-11.el9_0.3 | RHSA-2022:5263 |
| RHEL 8 | SLOF | 20200717-1.gite18ddad8.module+el8.4.0+8855+a9e237a9 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | hivex +6 | 1.3.18-21.module+el8.4.0+11609+2eba841a | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | libguestfs-appliance | 1:1.44.0-5.module+el8.6.0+14480+c0a3aa0f | RHSA-2022:5821 |
| RHEL 8 | libguestfs-winsupport | 8.2-2.module+el8.4.0+12717+0b0da9ad | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | libiscsi +2 | 1.18.0-8.module+el8.4.0+8855+a9e237a9 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | libnbd +6 | 1.6.0-5.module+el8.4.0+14155+dec4a5c7 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | libtpms +1 | 0.7.4-4.20201106git2452a24dab.module+el8.4.0+10596+32ba7df3 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | libvirt +29 | 7.0.0-14.8.module+el8.4.0+15255+f7eff4dd | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | libvirt-dbus | 1.3.0-2.module+el8.4.0+8855+a9e237a9 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | nbdkit +18 | 1.24.0-1.module+el8.4.0+9341+96cf2672 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | netcf +2 | 0.2.8-12.module+el8.4.0+8855+a9e237a9 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | perl-Sys-Virt +2 | 7.0.0-1.module+el8.4.0+9469+2eaf72bc | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | python-pyvmomi +1 | 6.7.1-7.module+el8.4.0+8855+a9e237a9 | RHSA-2022:5002 |
| RHEL 8 | qemu-img +14 | 15:5.2.0-16.module+el8.4.0+15200+eac37ce4.17 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | qemu-kvm-hw-usbredir | 15:6.2.0-11.module+el8.6.0+15668+464a1f31.2 | RHSA-2022:5821 |
| RHEL 8 | seabios +2 | 1.14.0-1.module+el8.4.0+8855+a9e237a9 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | sgabios +1 | 1:0.20170427git-3.module+el8.4.0+8855+a9e237a9 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | supermin +1 | 5.2.1-1.module+el8.4.0+9751+d56db353 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | swtpm +3 | 0.4.2-1.20201201git2df14e3.module+el8.4.0+9341+96cf2672 | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | swtpm-tools-pkcs11 | 0.7.0-1.20211109gitb79fd91.module+el8.6.0+14480+c0a3aa0f | RHSA-2022:5821 |
| RHEL 8 | virt-dib +23 | 1:1.44.0-2.module+el8.4.0+10146+75917d2f | RHSA-2022:5821, RHSA-2022:5002 |
| RHEL 8 | virt-v2v +3 | 1:1.42.0-9.module+el8.4.0+9561+069bb9c1 | RHSA-2022:5821, RHSA-2022:5002 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | qemu-img +21 | 17:6.2.0-11.el9_0.3 | ALSA-2022:5263 |
| AlmaLinux 8 | SLOF | 20210217-1.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | hivex +6 | 1.3.18-23.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | libguestfs-winsupport | 8.6-1.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | libiscsi +2 | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | libnbd +6 | 1.6.0-5.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | libtpms +1 | 0.9.1-0.20211126git1ff6fe1f43.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | libvirt +27 | 8.0.0-5.2.module_el8.6.0+3071+a07c0ea5 | ALSA-2022:5821 |
| AlmaLinux 8 | libvirt-dbus | 1.3.0-2.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | nbdkit +18 | 1.24.0-4.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | netcf +2 | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | perl-Sys-Virt +1 | 8.0.0-1.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | qemu-img +14 | 15:6.2.0-11.module_el8.6.0+3071+a07c0ea5.2 | ALSA-2022:5821 |
| AlmaLinux 8 | seabios +2 | 1.15.0-2.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | sgabios +1 | 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | supermin +1 | 5.2.1-1.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | swtpm +4 | 0.7.0-1.20211109gitb79fd91.module_el8.6.0+2880+7d9e3703 | ALSA-2022:5821 |
| AlmaLinux 8 | virt-dib +24 | 1:1.44.0-5.module_el8.6.0+2880+7d9e3703.alma | ALSA-2022:5821 |
| AlmaLinux 8 | virt-v2v +3 | 1:1.42.0-19.module_el8.6.0+3071+a07c0ea5 | ALSA-2022:5821 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | hivex | 1.3.18-23.module+el8.6.0+847+b490afdd | RLSA-2022:5821 |
| Rocky Linux 8 | libguestfs | 1:1.44.0-5.module+el8.6.0+1052+ff61d164.rocky | RLSA-2022:5821 |
| Rocky Linux 8 | libguestfs-winsupport | 8.6-1.module+el8.6.0+847+b490afdd | RLSA-2022:5821 |
| Rocky Linux 8 | libiscsi | 1.18.0-8.module+el8.4.0+534+4680a14e | RLSA-2022:5821 |
| Rocky Linux 8 | libnbd | 1.6.0-5.module+el8.6.0+847+b490afdd | RLSA-2022:5821 |
| Rocky Linux 8 | libtpms | 0.9.1-0.20211126git1ff6fe1f43.module+el8.6.0+1052+ff61d164 | RLSA-2022:5821 |
| Rocky Linux 8 | libvirt | 8.0.0-5.2.module+el8.6.0+998+252a5635 | RLSA-2022:5821 |
| Rocky Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.4.0+534+4680a14e | RLSA-2022:5821 |
| Rocky Linux 8 | nbdkit | 1.24.0-4.module+el8.6.0+847+b490afdd | RLSA-2022:5821 |
| Rocky Linux 8 | netcf | 0.2.8-12.module+el8.4.0+534+4680a14e | RLSA-2022:5821 |
| Rocky Linux 8 | perl-Sys-Virt +1 | 8.0.0-1.module+el8.6.0+847+b490afdd | RLSA-2022:5821 |
| Rocky Linux 8 | qemu-kvm | 5:6.2.0-11.module+el8.6.0+1000+18e3b59f.5 | RLSA-2022:5821 |
| Rocky Linux 8 | seabios | 1.15.0-2.module+el8.6.0+1052+ff61d164 | RLSA-2022:5821 |
| Rocky Linux 8 | sgabios | 1:0.20170427git-3.module+el8.4.0+534+4680a14e | RLSA-2022:5821 |
| Rocky Linux 8 | supermin | 5.2.1-1.module+el8.6.0+1052+ff61d164 | RLSA-2022:5821 |
| Rocky Linux 8 | swtpm | 0.7.0-1.20211109gitb79fd91.module+el8.6.0+847+b490afdd | RLSA-2022:5821 |
| Rocky Linux 8 | virt-v2v | 1:1.42.0-19.module+el8.6.0+1052+ff61d164 | RLSA-2022:5821 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | qemu | 6.2.0-150400.37.5.3 | SUSE-SU-2022:2260-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 7.0.0-53.1 | openSUSE-SU-2024:12209-1 |
| openSUSE Leap 15.4 | qemu | 6.2.0-150400.37.5.3 | SUSE-SU-2022:2260-1 |
| openSUSE Leap 15.4 | qemu-linux-user | 6.2.0-150400.37.5.1 | SUSE-SU-2022:2260-1 |
| openSUSE Leap 15.4 | qemu-testsuite | 6.2.0-150400.37.5.5 | SUSE-SU-2022:2260-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 6.2.0-18 | — |
| Azure Linux 2 (CBL-Mariner) | qemu | 6.2.0-3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | qemu-img +20 | 17:6.2.0-11.el9_0.3 | ELSA-2022-9869, ELSA-2022-5263 |
| Oracle Linux 9 | qemu-virtiofsd +2 | 30:6.1.1-4.el9 | ELSA-2022-9869 |
| Oracle Linux 8 | hivex +4 | 1.3.18-21.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | libguestfs-winsupport | 8.2-1.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | libiscsi +2 | 1.18.0-8.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | libnbd +3 | 1.2.2-1.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | libtpms +1 | 0.9.1-0.20211126git1ff6fe1f43.module+el8.6.0+20659+3dcf7c70 | ELSA-2022-9862, ELSA-2022-5821 |
| Oracle Linux 8 | libvirt +29 | 5.7.0-33.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | libvirt-wireshark | 7.10.0-2.module+el8.6.0+20842+e9607200 | ELSA-2022-9862, ELSA-2022-5821 |
| Oracle Linux 8 | nbdkit +13 | 1.16.2-4.0.1.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | nbdkit-nbd-plugin +4 | 1.24.0-4.module+el8.6.0+20659+3dcf7c70 | ELSA-2022-9862, ELSA-2022-5821 |
| Oracle Linux 8 | netcf +2 | 0.2.8-12.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | ocaml-hivex +1 | 1.3.18-23.module+el8.6.0+20659+3dcf7c70 | ELSA-2022-5821 |
| Oracle Linux 8 | ocaml-libguestfs +2 | 1:1.44.0-5.0.1.module+el8.6.0+20659+3dcf7c70 | ELSA-2022-9862, ELSA-2022-5821 |
| Oracle Linux 8 | ocaml-libnbd +2 | 1.6.0-5.module+el8.6.0+20664+3dcf7c70 | ELSA-2022-9862, ELSA-2022-5821 |
| Oracle Linux 8 | olcne-metallb-chart +1 | 1.5.3-1.el8 | ELSA-2022-9493 |
| Oracle Linux 8 | olcnectl +10 | 1.4.5-1.el8 | ELSA-2022-9494, ELSA-2022-9493 |
| Oracle Linux 8 | perl-Sys-Virt | 4.5.0-5.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | qemu-img +9 | 15:4.2.1-17.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | qemu-kvm-docs +4 | 15:6.2.0-11.module+el8.6.0+20722+b0f1ae3c.2 | ELSA-2022-5821 |
| Oracle Linux 8 | qemu-virtiofsd | 15:6.1.1-4.module+el8.6.0+20842+e9607200 | ELSA-2022-9862 |
| Oracle Linux 8 | seabios +2 | 1.13.0-2.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | sgabios +1 | 1:0.20170427git-3.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | supermin +1 | 5.1.19-10.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | swtpm +4 | 0.7.0-1.20211109gitb79fd91.module+el8.6.0+20659+3dcf7c70 | ELSA-2022-9862, ELSA-2022-5821 |
| Oracle Linux 8 | virt-dib +23 | 1:1.40.2-28.0.4.module+el8.5.0+20645+1693a26d | ELSA-2022-9862, ELSA-2022-9460, ELSA-2022-5821 |
| Oracle Linux 8 | virt-v2v-man-pages-ja +2 | 1:1.42.0-19.0.1.module+el8.6.0+20722+b0f1ae3c | ELSA-2022-9862, ELSA-2022-5821 |
| Oracle Linux 7 | olcne-metallb-chart +1 | 1.5.3-1.el7 | ELSA-2022-9491 |
| Oracle Linux 7 | olcnectl +10 | 1.4.5-1.el7 | ELSA-2022-9492, ELSA-2022-9491 |
| Oracle Linux 7 | qemu +12 | 15:4.2.1-17.el7 | ELSA-2022-9432 |
Advisories 22
- ALSA-2022:5263 Moderate: qemu-kvm security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2022:5821 Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:5821 Red Hat Security Advisory: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2022:5263 Red Hat Security Advisory: qemu-kvm security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2022:5002 Red Hat Security Advisory: virt:av and virt-devel:av security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-5489-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5133-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:5821 Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:12209-1 qemu-7.0.0-53.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2260-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-0114 QEMU: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen BSI CERT-Bund (WID) · Nov 10, 2025
- NCSC-2024-0339 Kwetsbaarheden verholpen in Microsoft Mariner NCSC-NL (Netherlands) · Aug 13, 2024
- ELSA-2022-9862 Important: kvm_utils2 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 13, 2022
- ELSA-2022-9869 Important: qemu-kvm security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 10, 2022
- ELSA-2022-5821 Moderate: virt:ol and virt-devel:ol security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 5, 2022
- ELSA-2022-5263 Moderate: qemu-kvm security and bug fix update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 4, 2022
- ELSA-2022-9494 Important: olcne security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 17, 2022
- ELSA-2022-9493 Important: olcne security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 16, 2022
- ELSA-2022-9492 Important: olcne security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 16, 2022
- ELSA-2022-9491 Important: olcne security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 16, 2022
- ELSA-2022-9460 Important: kvm_utils security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 6, 2022
- ELSA-2022-9432 Important: qemu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 26, 2022