CVE-2026-86847
Fixed in a distro release EPSS <1%CVSS 6.5
A flaw was found in DPDK lib/vhost vhost-crypto. Write-back chain cleanup can follow an uninitialized next pointer when mapping a guest descriptor fails, causing the host vhost-crypto process to hang or crash.
Products: Red Hat Fast Datapath for RHEL 10, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 9, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4, Red Hat OpenStack Platform 13 (Queens)
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | dpdk | no fix |
| Debian 13 | dpdk | no fix |
| Debian 14 | dpdk | 25.11.4-1 |
| Ubuntu 16.04 LTS | dpdk | no fix |
| Ubuntu 18.04 LTS | dpdk | no fix |
| Ubuntu 20.04 LTS | dpdk | no fix |
| Ubuntu 22.04 LTS | dpdk | no fix |
| Ubuntu 24.04 LTS | dpdk | no fix |
| Ubuntu 26.04 LTS | dpdk | no fix |
| Ubuntu 26.10 | dpdk | no fix |
| openSUSE Tumbleweed | dpdk | 25.11.4-1.1 |