CVE-2026-86567
Dpdk: dpdk: vduse handler fails to invalidate vring pointers when iotlb is invalidated, leading to use-after-unmap
- State
- Published
- Severity
- 8.8 High
- Published
- Oct 14, 2026
- Updated
- Nov 2, 2026
- Reserved
- Sep 8, 2026
Description
A flaw was found in DPDK lib/vhost. The VDUSE handler fails to invalidate vring pointers when the IOTLB is invalidated, leading to use-after-unmap.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | redhat |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
Fast Datapath for RHEL 10Red Hat | |
Fast Datapath for RHEL 10Red Hat | |
Fast Datapath for RHEL 10Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenStack Platform 13 (Queens)Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-86567vdb-entry
- RHBZ#2529685issue-tracking
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