i3c: mipi-i3c-hci: Fix race in DMA ring dequeue_CVE-2026-43353

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: mipi-i3c-hci: Fix race in DMA ring dequeue\n\nThe HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for\nmultiple transfers that timeout around the same time.  However, the\nfunction is not serialized and can race with itself.\n\nWhen a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes\nincomplete transfers, and then restarts the ring.  If another timeout\ntriggers a parallel call into the same function, the two instances may\ninterfere with each other - stopping or restarting the ring at unexpected\ntimes.\n\nAdd a mutex so that hci_dma_dequeue_xfer() is serialized with respect to\nitself.",
    "published": "2026-05-08T14:21:10.282Z",
    "modified": "2026-05-11T06:33:37.564Z",
    "type": "cve",
    "title": "i3c: mipi-i3c-hci: Fix race in DMA ring dequeue",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e\nhttps://git.kernel.org/stable/c/4faa1e9c67a2229f6749190aedaf88ce0391efd2\nhttps://git.kernel.org/stable/c/1dca8aee80eea76d2aae21265de5dd64f6ba0f09",
    "id": "CVE-2026-43353",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07\nLinux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07\nLinux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07\nLinux Linux 5.11",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "9ad9a52cce2828d932ae9495181e3d6414f72c07",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}