Bug 2552438

Summary: CVE-2026-86565 dpdk: dpdk: Guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write [fedora-all]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: dpdkAssignee: Timothy Redaelli <tredaelli>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: aconole, tredaelli
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["6d54ad9c-a859-48d7-98cc-a98426814809"]}
Fixed In Version: Doc Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2529683    

Description Ganesh 2026-10-14 16:01:11 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. Virtqueue size can be desynchronized from the inflight descriptor table size, causing an out-of-bounds write in the host vhost process.