{
    "CVE_data_meta": {
        "ASSIGNER": "security@google.com",
        "DATE_PUBLIC": "2022-08-31T22:00:00.000Z",
        "ID": "CVE-2022-3176",
        "STATE": "PUBLIC",
        "TITLE": "Use-after-free in io_uring in Linux Kernel"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Kernel",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_value": "fc78b2fc21f10c4c9c4d5d659a685710ffa63659"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Linux"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Bing-Jhong Billy Jheng <billy@starlabs.sg>"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "There exists a use-after-free in io_uring in the Linux kernel. Signalfd_poll() and binder_poll() use a waitqueue whose lifetime is the current task. It will send a POLLFREE notification to all waiters before the queue is freed. Unfortunately, the io_uring poll doesn't handle POLLFREE. This allows a use-after-free to occur if a signalfd or binder fd is polled with io_uring poll, and the waitqueue gets freed. We recommend upgrading past commit fc78b2fc21f10c4c9c4d5d659a685710ffa63659"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-416 Use After Free"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://kernel.dance/#fc78b2fc21f10c4c9c4d5d659a685710ffa63659",
                "name": "https://kernel.dance/#fc78b2fc21f10c4c9c4d5d659a685710ffa63659"
            },
            {
                "refsource": "MISC",
                "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit?h=linux-5.4.y&id=fc78b2fc21f10c4c9c4d5d659a685710ffa63659",
                "name": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit?h=linux-5.4.y&id=fc78b2fc21f10c4c9c4d5d659a685710ffa63659"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-5257",
                "url": "https://www.debian.org/security/2022/dsa-5257"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20230216-0003/",
                "url": "https://security.netapp.com/advisory/ntap-20230216-0003/"
            }
        ]
    },
    "source": {
        "discovery": "EXTERNAL"
    }
}