Description
A flaw was found in DPDK lib/vhost. Missing length validation before reading command_data in the virtio-net control-queue handler can cause an out-of-bounds read and a host process crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Fast Datapath for RHEL 10 | — | — |
| Red Hat | Fast Datapath for RHEL 8 | — | — |
| Red Hat | Fast Datapath for RHEL 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| 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 | dpdk | 25.11.4-1 | — |
| Debian 13 | dpdk | 24.11.8-0+deb13u1 | — |
| Debian 12 | dpdk | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | dpdk | No fix yet | — |
| Ubuntu 26.04 LTS | dpdk | No fix yet | — |
| Ubuntu 24.04 LTS | dpdk | No fix yet | — |
| Ubuntu 22.04 LTS | dpdk | No fix yet | — |
| Ubuntu 20.04 LTS | dpdk | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | dpdk | No fix yet | — |
| Ubuntu 16.04 LTS | dpdk | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | dpdk | 23.11.8-1 | — |
References
- https://access.redhat.com/security/cve/CVE-2026-86564 vdb-entry
- RHBZ#2529682 issue-tracking