{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-52639",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: vsie: fix race during shadow creation\n\nRight now it is possible to see gmap->private being zero in\nkvm_s390_vsie_gmap_notifier resulting in a crash.  This is due to the\nfact that we add gmap->private == kvm after creation:\n\nstatic int acquire_gmap_shadow(struct kvm_vcpu *vcpu,\n                               struct vsie_page *vsie_page)\n{\n[...]\n        gmap = gmap_shadow(vcpu->arch.gmap, asce, edat);\n        if (IS_ERR(gmap))\n                return PTR_ERR(gmap);\n        gmap->private = vcpu->kvm;\n\nLet children inherit the private field of the parent."
            }
        ]
    },
    "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": "a3508fbe9dc6",
                                            "version_value": "5df3b81a567e"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "4.8",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "4.8",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.1.82",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.22",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.7.6",
                                                        "lessThanOrEqual": "6.7.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.8",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
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                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc"
            },
            {
                "url": "https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380"
            },
            {
                "url": "https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082"
            },
            {
                "url": "https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32"
            }
        ]
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}