Description
A flaw was found in dpdk. This flaw allows a malicious vhost-user master to attach an unexpected number of fds as ancillary data to VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD messages that are not closed by the vhost-user slave. By sending such messages continuously, the vhost-user master exhausts available fd in the vhost-user slave process, leading to a denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | DPDK | Affects v19.11-rc1 and later, Fixed in v22.03-rc4. | — |
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 | dpdk | 20.11.5-1 | — |
| Debian 13 | dpdk | 20.11.5-1 | — |
| Debian 12 | dpdk | 20.11.5-1 | — |
| Debian 11 | dpdk | 20.11.5-1~deb11u1 | DSA-5130-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | dpdk | 21.11.1-0ubuntu0.3 | USN-5401-1 |
| Ubuntu 20.04 LTS | dpdk | 19.11.12-0ubuntu0.20.04.1 | USN-5401-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | openvswitch2.13 | 2.13.0-180.el8fdp | RHSA-2022:4786 |
| RHEL 8 | openvswitch2.15 | 2.15.0-99.el8fdp | RHSA-2022:4787 |
| RHEL 8 | openvswitch2.16 | 2.16.0-74.el8fdp | RHSA-2022:4788 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | dpdk +1 | 19.11.4-150300.11.1 | SUSE-SU-2022:1892-1 |
| SLES 15 SP2 | dpdk +1 | 19.11.4-150200.3.17.1 | SUSE-SU-2022:2273-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP2 | dpdk | 19.11.4-150200.3.17.1 | SUSE-SU-2022:2273-1 |
| SLE HPC 15 SP2 | dpdk +1 | 19.11.4-150200.3.17.1 | SUSE-SU-2022:2273-1 |
| SUSE Manager Server 4.1 | dpdk | 19.11.4-150200.3.17.1 | SUSE-SU-2022:2273-1 |
| SUSE Manager Retail Branch Server 4.1 | dpdk | 19.11.4-150200.3.17.1 | SUSE-SU-2022:2273-1 |
| SUSE Manager Proxy 4.1 | dpdk | 19.11.4-150200.3.17.1 | SUSE-SU-2022:2273-1 |
| SUSE Enterprise Storage 7 | dpdk +1 | 19.11.4-150200.3.17.1 | SUSE-SU-2022:2273-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dpdk +1 | 19.11.4-150300.11.1 | SUSE-SU-2022:1892-1 |
| openSUSE Leap 15.3 | dpdk +1 | 19.11.4-150300.11.1 | SUSE-SU-2022:1892-1 |
Advisories 7
- RHSA-2022:4787 Red Hat Security Advisory: openvswitch2.15 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2022:4788 Red Hat Security Advisory: openvswitch2.16 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2022:4786 Red Hat Security Advisory: openvswitch2.13 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-5401-1 dpdk vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5130-1 dpdk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:1892-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2273-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026