Bug 2552423 - CVE-2026-86562 dpdk: dpdk: Control-queue descriptor double-fetch overflows host heap in DPDK vhost (VDUSE) [fedora-all]
Summary: CVE-2026-86562 dpdk: dpdk: Control-queue descriptor double-fetch overflows ho...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: dpdk
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Timothy Redaelli
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["b82e3ddd-1e4d-4f5e-991f-4...
Depends On:
Blocks: CVE-2026-86562
TreeView+ depends on / blocked
 
Reported: 2026-10-14 15:47 UTC by Ganesh
Modified: 2026-10-14 15:47 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

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Description Ganesh 2026-10-14 15:47:50 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A flaw was found in DPDK lib/vhost. A control-queue descriptor double-fetch in virtio_net_ctrl_pop() overflows the host heap in the VDUSE path. An incomplete fix in commit 6ec1778134 (January 2026) bounded descriptor indices but did not snapshot lengths.
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