{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "efc644048ecde54f016011fe10110addd0de348f"
            },
            {
              "fixed": "e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769"
            },
            {
              "fixed": "116c7d35b8f72eac383b9fd371d7c1a8ffc2968b"
            },
            {
              "fixed": "023816bd5fa46fab94d1e7917fe131b79ed1fb41"
            },
            {
              "fixed": "3481fd96d801715942b6f69fe251133128156f30"
            },
            {
              "fixed": "b5de7ac74f69603ad803c524b840bffd36368fc3"
            },
            {
              "fixed": "3066ec21d1a33896125747f68638725f456308db"
            },
            {
              "fixed": "9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37885.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Reset IRTE to host control if *new* route isn't postable\n\nRestore an IRTE back to host control (remapped or posted MSI mode) if the\n*new* GSI route prevents posting the IRQ directly to a vCPU, regardless of\nthe GSI routing type.  Updating the IRTE if and only if the new GSI is an\nMSI results in KVM leaving an IRTE posting to a vCPU.\n\nThe dangling IRTE can result in interrupts being incorrectly delivered to\nthe guest, and in the worst case scenario can result in use-after-free,\ne.g. if the VM is torn down, but the underlying host IRQ isn't freed.",
  "id": "CVE-2025-37885",
  "modified": "2026-03-10T21:53:23.601452226Z",
  "published": "2025-05-09T06:45:48.150Z",
  "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/023816bd5fa46fab94d1e7917fe131b79ed1fb41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/116c7d35b8f72eac383b9fd371d7c1a8ffc2968b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3066ec21d1a33896125747f68638725f456308db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3481fd96d801715942b6f69fe251133128156f30"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5de7ac74f69603ad803c524b840bffd36368fc3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37885.json"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37885"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "KVM: x86: Reset IRTE to host control if *new* route isn't postable"
}