p PatchFirst

CVE-2026-93683

CVE-2026-93683 · Dpdk: dpdk: guest-triggered out-of-bounds walk via vhost indirect descriptor length toctou

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A flaw was found in the DPDK vhost library. When handling a virtio indirect descriptor table, the host reads the table length more than once from guest memory and can allocate a host copy before validating that length. A guest that changes the length between those reads, or that supplies an out-of-range next index on a small host copy in the vDPA relay path, can cause the host vhost process to walk past the validated mapping or heap copy. That can crash or disrupt the vhost process. Out-of-bounds bytes are consumed as descriptor fields for GPA translation and are not returned to the guest as payload. This is a residual issue in the non-contiguous indirect descriptor copy path introduced as part of the CVE-2018-1059 fix.

CVSS 6.4 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • fast datapath for rhel 10

    No fix published

  • fast datapath for rhel 8

    No fix published

  • fast datapath for rhel 9

    No fix published

  • red hat enterprise linux 10

    No fix published

  • red hat enterprise linux 8

    No fix published

  • red hat enterprise linux 9

    No fix published

  • red hat openshift container platform 4

    No fix published

  • red hat openstack platform 13 (queens)

    No fix published

  • dpdk Debian:12

    Versions
    • 22.11.1-2
    • 22.11.11-0+deb12u1
    • 22.11.2-1
    • 22.11.2-2
    • 22.11.2-2~deb12u1
    • 22.11.2-3
    • 22.11.3-1
    • 22.11.3-1~deb12u1
    • 22.11.3-2
    • 22.11.4-1~deb12u1
    • 22.11.5-1~deb12u1
    • 22.11.6-1~deb12u1
    • 22.11.7-1~deb12u1
    • 22.11.8-1~deb12u1
    • 22.11.9-1~deb12u1
    • 23.11-1
    • 23.11-1~exp1
    • 23.11.1-1
    • 23.11.1-2
    • 23.11.2-1
    • 23.11.2-1+exp1
    • 23.11.2-1+exp2
    • 23.11.2-1+exp3
    • 23.11.2-1+exp4
    • 23.11.2-2
    • 23.11.2-3
    • 24.11-1
    • 24.11-2
    • 24.11.1-1
    • 24.11.2-1
    • 24.11.2-2
    • 24.11.3-1
    • 24.11.3-1~deb13u1
    • 24.11.3-2
    • 24.11~rc2-1
    • 24.11~rc2-2
    • 24.11~rc3-1
    • 24.11~rc4-1
    • 25.11-1
    • 25.11-2
    • 25.11.1-1
    • 25.11.2-1
    • 25.11.3-1
    • 25.11.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Debian:13

    Versions
    • 24.11.2-2
    • 24.11.3-1
    • 24.11.3-1~deb13u1
    • 24.11.3-2
    • 24.11.4-0+deb13u1
    • 25.11-1
    • 25.11-2
    • 25.11.1-1
    • 25.11.2-1
    • 25.11.3-1
    • 25.11.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Debian:14

    Versions
    • 24.11.2-2
    • 24.11.3-1
    • 24.11.3-1~deb13u1
    • 24.11.3-2
    • 25.11-1
    • 25.11-2
    • 25.11.1-1
    • 25.11.2-1
    • 25.11.3-1
    Affected ranges
    • ECOSYSTEM: < 25.11.4-1

    Update to 25.11.4-1

  • dpdk Ubuntu:16.04:LTS

    Versions
    • 2.0.0-0ubuntu1
    • 2.0.0-0ubuntu2
    • 2.0.0-0ubuntu3
    • 2.2.0-0ubuntu1
    • 2.2.0-0ubuntu3
    • 2.2.0-0ubuntu5
    • 2.2.0-0ubuntu6
    • 2.2.0-0ubuntu7
    • 2.2.0-0ubuntu8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Ubuntu:18.04:LTS

    Versions
    • 17.05.2-0ubuntu1
    • 17.05.2-0ubuntu2
    • 17.11-3
    • 17.11-4
    • 17.11-5
    • 17.11.1-6
    • 17.11.2-1ubuntu0.1
    • 17.11.3-3~ubuntu0.18.04
    • 17.11.5-0~ubuntu18.04.1
    • 17.11.6-0~ubuntu18.04.1
    • 17.11.8-0~ubuntu18.04.2
    • 17.11.9-0ubuntu18.04.1
    • 17.11.9-0ubuntu18.04.2
    • 17.11.10-0ubuntu0.1
    • 17.11.10-0ubuntu0.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Ubuntu:20.04:LTS

    Versions
    • 18.11.2-4
    • 18.11.3-1
    • 18.11.4-1
    • 18.11.4-1ubuntu1
    • 18.11.5-1
    • 19.11-2ubuntu1
    • 19.11-2ubuntu2
    • 19.11.1-0ubuntu1
    • 19.11.1-0ubuntu1.1
    • 19.11.3-0ubuntu0.1
    • 19.11.3-0ubuntu0.2
    • 19.11.6-0ubuntu0.20.04.1
    • 19.11.7-0ubuntu0.20.04.1
    • 19.11.7-0ubuntu0.20.04.2
    • 19.11.10-0ubuntu0.20.04.1
    • 19.11.12-0ubuntu0.20.04.1
    • 19.11.13-0ubuntu0.20.04.1
    • 19.11.14-0ubuntu0.20.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Ubuntu:22.04:LTS

    Versions
    • 20.11.3-0ubuntu1
    • 20.11.3-0ubuntu3
    • 21.11-1
    • 21.11-1build1
    • 21.11.1-0ubuntu0.3
    • 21.11.2-0ubuntu0.22.04.1
    • 21.11.3-0ubuntu0.22.04.1
    • 21.11.4-0ubuntu0.22.04.1
    • 21.11.6-0ubuntu0.22.04.1
    • 21.11.6-0ubuntu0.22.04.2
    • 21.11.9-0ubuntu0.22.04.1
    • 21.11.9-0ubuntu0.22.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Ubuntu:24.04:LTS

    Versions
    • 22.11.3-1
    • 22.11.3-2
    • 23.11-1
    • 23.11-1build2
    • 23.11-1build3
    • 23.11-1ubuntu0.1
    • 23.11.4-0ubuntu0.24.04.1
    • 23.11.4-0ubuntu0.24.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Ubuntu:26.10

    Versions
    • 25.11-2
    • 25.11.2-1
    • 25.11.2-1build1
    • 25.11.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dpdk Ubuntu:26.04:LTS

    Versions
    • 24.11.3-1
    • 24.11.3-2
    • 25.11-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

Check your server →