{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3ce9f3357e9e099f02feaa002769eb99ef1138cd"
            },
            {
              "fixed": "8530a05b304d312fe7dfbc5df7d3e87cc31b256a"
            },
            {
              "fixed": "af6813d16ace2765011ca1c567be86ade1d1ee8e"
            },
            {
              "fixed": "6b1bca1b1ab77f60a62087337bfe6e2f0efb9e6d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98469.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Fix AArch32 DBGBXVR\u003cn\u003e handling\n\nThe consolidation of the breakpoint and watchpoint register accessors\nswitched DBGBXVR\u003cn\u003e from trap_bvr() to trap_dbg_wb_reg(). The latter\nselects backing storage with demux_wb_reg(), which only handles Op2 values\n4 through 7. Since DBGBXVR\u003cn\u003e uses Op2 1, an AArch32 guest access hits\nKVM_BUG_ON() and marks the VM dead.\n\nDBGBXVR\u003cn\u003e aliases DBGBVR\u003cn\u003e_EL1[63:32], and its AA32(HI) descriptor\nalready selects the upper half. Map Op2 1 to dbg_bvr[] alongside Op2 4,\nrestoring the pre-regression behavior.",
  "id": "CVE-2026-98469",
  "modified": "2026-10-20T02:30:14.156455484Z",
  "published": "2026-10-18T15:15:22.065Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6b1bca1b1ab77f60a62087337bfe6e2f0efb9e6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8530a05b304d312fe7dfbc5df7d3e87cc31b256a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af6813d16ace2765011ca1c567be86ade1d1ee8e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98469.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98469"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "KVM: arm64: Fix AArch32 DBGBXVR\u003cn\u003e handling"
}