{
  "cveId": "CVE-2022-49884",
  "url": "https://patchblox.com/security/cve/CVE-2022-49884",
  "summary": "CVE-2022-49884 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49884, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  KVM: Initialize gfn_to_pfn_cache locks in dedica...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  KVM: Initialize gfn_to_pfn_cache locks in dedicated helper  Move the gfn_to_pfn_cache lock initialization to another helper and call the new helper during VM/vCPU creation.  There are race conditions possible due to kvm_gfn_to_pfn_cache_init()\u0027s ability to re-initialize the cache\u0027s locks.  For example: a race between ioctl(KVM_XEN_HVM_EVTCHN_SEND) and kvm_gfn_to_pfn_cache_init() leads to a corrupted shinfo gpc lock.                  (thread 1)                |           (thread 2)                                           |  kvm_xen_set_evtchn_fast                  |   read_lock_irqsave(\u0026gpc-\u003Elock, ...)      |                                           | kvm_gfn_to_pfn_cache_init                                           |  rwlock_init(\u0026gpc-\u003Elock)   read_unlock_irqrestore(\u0026gpc-\u003Elock, ...) |  Rename \u0022cache_init\u0022 and \u0022cache_destroy\u0022 to activate\u002Bdeactivate to avoid implying that the cache really is destroyed/freed.  Note, there more races in the newly named kvm_gpc_activate() that will be addressed separately.  [sean: call out that this is a bug fix]",
  "published": "2025-05-01T15:16:13Z",
  "severity": "medium",
  "cvss": 4.7,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00127,
  "epssPercentile": 0.02398,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49884",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49884",
      "released": "2025-05-01T15:16:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49884",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49884",
      "released": "2025-05-01T15:16:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49884",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49884",
      "released": "2025-05-01T15:16:13Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}