{
  "cveId": "CVE-2022-48867",
  "url": "https://patchblox.com/security/cve/CVE-2022-48867",
  "summary": "CVE-2022-48867 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48867, released August 21, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  dmaengine: idxd: Prevent use after free on compl...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  dmaengine: idxd: Prevent use after free on completion memory  On driver unload any pending descriptors are flushed at the time the interrupt is freed: idxd_dmaengine_drv_remove() -\u003E \tdrv_disable_wq() -\u003E \t\tidxd_wq_free_irq() -\u003E \t\t\tidxd_flush_pending_descs().  If there are any descriptors present that need to be flushed this flow triggers a \u0022not present\u0022 page fault as below:   BUG: unable to handle page fault for address: ff391c97c70c9040  #PF: supervisor read access in kernel mode  #PF: error_code(0x0000) - not-present page  The address that triggers the fault is the address of the descriptor that was freed moments earlier via: drv_disable_wq()-\u003Eidxd_wq_free_resources()  Fix the use after free by freeing the descriptors after any possible usage. This is done after idxd_wq_reset() to ensure that the memory remains accessible during possible completion writes by the device.",
  "published": "2024-08-21T07:15:03Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00233,
  "epssPercentile": 0.14239,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.8-1",
      "fix": "DEBIAN-CVE-2022-48867",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48867",
      "released": "2024-08-21T07:15:03Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.8-1",
      "fix": "DEBIAN-CVE-2022-48867",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48867",
      "released": "2024-08-21T07:15:03Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.8-1",
      "fix": "DEBIAN-CVE-2022-48867",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48867",
      "released": "2024-08-21T07:15:03Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}