{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929"
            },
            {
              "fixed": "7c73a269a880b1399baacfb9d521415e6ef7ecc2"
            },
            {
              "fixed": "5fd30133af864a1de0a0bd87d3fe3cf23205fbc7"
            },
            {
              "fixed": "4be6cbeb93d26994bd1827ddbce391e3c4395c8f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64288.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB\n\nVNCR TLB invalidation occurs from MMU notifiers or TLBI instructions,\nand either can race against a vcpu not being onlined yet (no pseudo-TLB\nallocated). Similarly, the TLB might be invalid, and the invalidation\nshould be skipped in this case.\n\nBoth kvm_invalidate_vncr_ipa() and kvm_invalidate_vncr_va() are\nexpected to perform the same checks, except that the latter doesn't\ncheck for the allocation and blindly dereferences the pointer.\n\nSolve this by introducing a new iterator built on top of the usual\nkvm_for_each_vcpu() that checks for both of the above conditions,\nand convert the two users to it.",
  "id": "CVE-2026-64288",
  "modified": "2026-07-27T03:56:24.182670142Z",
  "published": "2026-07-25T08:49:28.789Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4be6cbeb93d26994bd1827ddbce391e3c4395c8f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5fd30133af864a1de0a0bd87d3fe3cf23205fbc7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c73a269a880b1399baacfb9d521415e6ef7ecc2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64288.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64288"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB"
}