{
  "cveId": "CVE-2026-98465",
  "url": "https://patchblox.com/security/cve/CVE-2026-98465",
  "summary": "CVE-2026-98465 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-98465, released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "RISC-V: KVM: Serialize IMSIC attributes with vCPU migration",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  RISC-V: KVM: Serialize IMSIC attributes with vCPU migration  KVM device ioctls are not serialized against KVM_RUN. As a result, kvm_riscv_aia_imsic_rw_attr() can snapshot the physical CPU and HGEI of an IMSIC VS-file before a concurrent vCPU migration releases it.  The HGEI can then be allocated to another vCPU before imsic_vsfile_rw() uses the stale tuple. A GET or SET attribute may consequently access the new owner\u0027s interrupt file.  Serialize the entire IMSIC attribute operation with the target vCPU mutex. This prevents the VS-file from being migrated and recycled until the attribute access completes. Acquire the mutex killably so that the device ioctl remains interruptible while waiting for KVM_RUN to finish.",
  "published": "2026-10-18T16:16:56Z",
  "severity": "Moderate",
  "cvss": 7,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H",
  "epss": 0.00136,
  "epssPercentile": 0.03102,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98465",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98465",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98465",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.9-1",
      "fix": "DEBIAN-CVE-2026-98465",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98465",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.113-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-98465",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98465",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}