{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a3508fbe9dc6dd3bece0c7bf889cc085a011738c"
            },
            {
              "fixed": "5df3b81a567eb565029563f26f374ae3803a1dfc"
            },
            {
              "fixed": "f5572c0323cf8b4f1f0618178648a25b8fb8a380"
            },
            {
              "fixed": "28bb27824f25f36e5f80229a358d66ee09244082"
            },
            {
              "fixed": "fe752331d4b361d43cfd0b89534b4b2176057c32"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.8.0"
            },
            {
              "fixed": "6.1.82"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.22"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.7.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52639.json"
  },
  "details": "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-\u003eprivate being zero in\nkvm_s390_vsie_gmap_notifier resulting in a crash.  This is due to the\nfact that we add gmap-\u003eprivate == 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-\u003earch.gmap, asce, edat);\n        if (IS_ERR(gmap))\n                return PTR_ERR(gmap);\n        gmap-\u003eprivate = vcpu-\u003ekvm;\n\nLet children inherit the private field of the parent.",
  "id": "CVE-2023-52639",
  "modified": "2026-08-12T03:51:12.121458431Z",
  "published": "2024-04-03T14:54:47.009Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52639.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52639"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "KVM: s390: vsie: fix race during shadow creation"
}