CVE-2026-46214 (GCVE-0-2026-46214)
Vulnerability from cvelistv5 – Published: 2026-05-28 09:40 – Updated: 2026-06-14 18:03
VLAI
EPSS
VEX
Title
vsock/virtio: fix accept queue count leak on transport mismatch
Summary
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: fix accept queue count leak on transport mismatch
virtio_transport_recv_listen() calls sk_acceptq_added() before
vsock_assign_transport(). If vsock_assign_transport() fails or
selects a different transport, the error path returns without
calling sk_acceptq_removed(), permanently incrementing
sk_ack_backlog.
After approximately backlog+1 such failures, sk_acceptq_is_full()
returns true, causing the listener to reject all new connections.
Fix by moving sk_acceptq_added() to after the transport validation,
matching the pattern used by vmci_transport and hyperv_transport.
Severity
5.5 (Medium)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f
(git)
Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < fd51e810affa38d735d04261e673b2a5fe9c8665 (git) Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < f66c7904fb6f0e420a654bc90909e64a25d00896 (git) Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 65c484726e74013a2ec7ba67a34d87760ae8f390 (git) Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 29371f3cc83e2a92265b4768014a30b80234112f (git) Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < e9edf9893cf26d060705c910a9b62d8cc96ed56a (git) Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 6d3275fc4ed968938e1d556c344798046776668d (git) Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 52bcb57a4e8a0865a76c587c2451906342ae1b2d (git) |
guessed | |
| Linux | Linux |
Affected:
5.5
Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.90 , ≤ 6.12.* (semver) Unaffected: 6.18.32 , ≤ 6.18.* (semver) Unaffected: 7.0.9 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed |
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"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-01T01:07:03Z",
"cve": "CVE-2026-46214",
"id": "CVE-2026-46214",
"initial_release_date": "2026-05-29T01:14:59Z",
"product_status:known_affected": "530",
"product_status:known_not_affected": "175",
"product_status:recommended": "254",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-46214",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46214.json",
"version": "17"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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