vsock/virtio: fix potential unbounded skb queue_CVE-2026-53132

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: fix potential unbounded skb queue\n\nvirtio_transport_inc_rx_pkt() checks vvs->rx_bytes + len > vvs->buf_alloc.\n\nvirtio_transport_recv_enqueue() skips coalescing for packets\nwith VIRTIO_VSOCK_SEQ_EOM.\n\nIf fed with packets with len == 0 and VIRTIO_VSOCK_SEQ_EOM,\na very large number of packets can be queued\nbecause vvs->rx_bytes stays at 0.\n\nFix this by estimating the skb metadata size:\n\n\t(Number of skbs in the queue) * SKB_TRUESIZE(0)",
    "published": "2026-06-25T08:38:21.575Z",
    "modified": "2026-06-28T06:39:26.465Z",
    "type": "cve",
    "title": "vsock/virtio: fix potential unbounded skb queue",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/1eca304f97a34ed5e921e1f0e06c8b241f25bf12\nhttps://git.kernel.org/stable/c/9bdc637fde66b63d6cad0caacd034888bb7bf5f5\nhttps://git.kernel.org/stable/c/100d5b2ffdc6468b9e48532641f29e83efdcb63c\nhttps://git.kernel.org/stable/c/059b7dbd20a6f0c539a45ddff1573cb8946685b5",
    "id": "CVE-2026-53132",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 077706165717686a2a6a71405fef036cd5b37ae0\nLinux Linux 077706165717686a2a6a71405fef036cd5b37ae0\nLinux Linux 077706165717686a2a6a71405fef036cd5b37ae0\nLinux Linux 077706165717686a2a6a71405fef036cd5b37ae0\nLinux Linux 5852a2b573f7a3a29df46296e56aa3491e589cdf\nLinux Linux 6.1.63\nLinux Linux 6.3",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "077706165717686a2a6a71405fef036cd5b37ae0",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_score": 0
}