{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3956a52bc05bd811082a3c9d2b423ee957e6fefc"
            },
            {
              "fixed": "126053d0a685bf1f2e98db8966386f38b2336338"
            },
            {
              "fixed": "2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3"
            },
            {
              "fixed": "b97bd69eb0f67b5f961b304d28e9ba45e202d841"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.21"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31569.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Handle the case that EIOINTC's coremap is empty\n\nEIOINTC's coremap in eiointc_update_sw_coremap() can be empty, currently\nwe get a cpuid with -1 in this case, but we actually need 0 because it's\nsimilar as the case that cpuid \u003e= 4.\n\nThis fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].",
  "id": "CVE-2026-31569",
  "modified": "2026-07-08T05:36:00.495303210Z",
  "published": "2026-04-24T14:35:48.768Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/126053d0a685bf1f2e98db8966386f38b2336338"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b97bd69eb0f67b5f961b304d28e9ba45e202d841"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31569.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31569"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LoongArch: KVM: Handle the case that EIOINTC's coremap is empty"
}