cvelist/2023/52xxx/CVE-2023-52895.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-52895",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/poll: don't reissue in case of poll race on multishot request\n\nA previous commit fixed a poll race that can occur, but it's only\napplicable for multishot requests. For a multishot request, we can safely\nignore a spurious wakeup, as we never leave the waitqueue to begin with.\n\nA blunt reissue of a multishot armed request can cause us to leak a\nbuffer, if they are ring provided. While this seems like a bug in itself,\nit's not really defined behavior to reissue a multishot request directly.\nIt's less efficient to do so as well, and not required to rearm anything\nlike it is for singleshot poll requests."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "c06015ebc436",
                                            "version_value": "36fc7317cdb1"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "6e5aedb9324a",
                                            "version_value": "8caa03f10bf9"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "6.1.7",
                                            "version_value": "6.1.8"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/36fc7317cdb16cfeae0f879916995037bb615ac4",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/36fc7317cdb16cfeae0f879916995037bb615ac4"
            },
            {
                "url": "https://git.kernel.org/stable/c/8caa03f10bf92cb8657408a6ece6a8a73f96ce13",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/8caa03f10bf92cb8657408a6ece6a8a73f96ce13"
            }
        ]
    },
    "generator": {
        "engine": "bippy-c9c4e1df01b2"
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