Bug 2529887

Summary: CVE-2026-86564 grout: dpdk: Missing length validation before reading command_data in virtio-net control queue handler [fedora-all]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: groutAssignee: Robin Jarry <rjarry>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: rawhideCC: mruprich, rjarry
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["3d5c4d27-8640-4090-acf4-bc0c00000c81"]}
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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: 2529682    

Description Ganesh 2026-09-08 15:35:20 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. The virtio-net control-queue handler reads command_data without validating that the copied request is long enough. This out-of-bounds read can cause a host process crash under hardened allocators or sanitizers.