ALSA-2026:94630: Important: dpdk security update
The dpdk packages provide the Data Plane Development Kit, which is a set of libraries and drivers for fast packet processing in the user space.
Security Fix(es):
dpdk: dpdk: Missing memory size validation before mmap in vhost memory region setup (CVE-2026-86561) dpdk: dpdk: Control-queue descriptor double-fetch overflows host heap in DPDK vhost (VDUSE) (CVE-2026-86562) dpdk: dpdk: Double offset bug in vhost log mapping calculation (CVE-2026-86563) dpdk: dpdk: Guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write (CVE-2026-86565) dpdk: dpdk: Guest with runt RX descriptors underflows copy length in vhost enqueue (split and packed rings) (CVE-2026-86566) dpdk: dpdk: VDUSE handler fails to invalidate vring pointers when IOTLB is invalidated, leading to use-after-unmap (CVE-2026-86567) dpdk: dpdk: Guest-triggered use-after-free and type confusion in vhost-crypto session cleanup (CVE-2026-86845) dpdk: dpdk: Guest can trigger out-of-bounds write by controlling avail ring index in vhost-crypto (CVE-2026-86846) dpdk: dpdk: Guest can trigger infinite loop in vhost-crypto writeback chain cleanup (CVE-2026-86847) dpdk: dpdk: Time-of-check/time-of-use vulnerability allowing guest-triggered out-of-bounds write in vhost-crypto (CVE-2026-86848) dpdk: dpdk: Integer overflow combined with missing validation leads to host buffer overflow in vhost-crypto (CVE-2026-86849) dpdk: dpdk: Stack and heap buffer overflow in nfp vDPA driver (CVE-2026-86856) dpdk: dpdk: Guest-triggered out-of-bounds walk via vhost indirect descriptor length TOCTOU (CVE-2026-93683) dpdk: dpdk: heap out-of-bounds read/write in GSO header copy (CVE-2026-100236)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
almalinux/dpdkto a version that resolves this vulnerability.Fixed in 2:25.11-2.el10_2 - Upgrade
Upgrade
almalinux/dpdk-develto a version that resolves this vulnerability.Fixed in 2:25.11-2.el10_2 - Upgrade
Upgrade
almalinux/dpdk-docto a version that resolves this vulnerability.Fixed in 2:25.11-2.el10_2 - Upgrade
Upgrade
almalinux/dpdk-toolsto a version that resolves this vulnerability.Fixed in 2:25.11-2.el10_2
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
Which deployments should be prioritized for remediation?
Prioritize DPDK deployments that use vhost functionality, especially VDUSE or vhost-crypto. The listed issues involve vhost memory regions, virtqueues, RX enqueue handling, VDUSE IOTLB handling, and vhost-crypto operations.
Does the advisory provide an interim mitigation for systems that cannot yet be patched?
No. The provided advisory text lists security fixes but does not describe a workaround, configuration change, or compensating control.
Can affected package versions or default exposure be determined from the provided information?
No. The provided information does not include affected or fixed package versions, nor does it state whether vulnerable vhost, VDUSE, or vhost-crypto functionality is enabled by default.