net: ipa: fix event ring index not programmed for IPA v5.0+_CVE-2026-43345

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipa: fix event ring index not programmed for IPA v5.0+\n\nFor IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to\nCH_C_CNTXT_1. The v5.0 register definition intended to define this\nfield in the CH_C_CNTXT_1 fmask array but used the old identifier of\nERINDEX instead of CH_ERINDEX.\n\nWithout a valid event ring, GSI channels could never signal transfer\ncompletions. This caused gsi_channel_trans_quiesce() to block\nforever in wait_for_completion().\n\nAt least for IPA v5.2 this resolves an issue seen where runtime\nsuspend, system suspend, and remoteproc stop all hanged forever. It\nalso meant the IPA data path was completely non functional.",
    "published": "2026-05-08T13:39:31.222Z",
    "modified": "2026-05-11T06:33:28.445Z",
    "type": "cve",
    "title": "net: ipa: fix event ring index not programmed for IPA v5.0+",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3\nhttps://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da\nhttps://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca\nhttps://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044\nhttps://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f",
    "id": "CVE-2026-43345",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux faf0678ec8a0aa9039d8b188d012206abd67dd5c\nLinux Linux faf0678ec8a0aa9039d8b188d012206abd67dd5c\nLinux Linux faf0678ec8a0aa9039d8b188d012206abd67dd5c\nLinux Linux faf0678ec8a0aa9039d8b188d012206abd67dd5c\nLinux Linux faf0678ec8a0aa9039d8b188d012206abd67dd5c\nLinux Linux 6.4",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "faf0678ec8a0aa9039d8b188d012206abd67dd5c",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}