{
  "cveId": "CVE-2022-48894",
  "url": "https://patchblox.com/security/cve/CVE-2022-48894",
  "summary": "CVE-2022-48894 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48894, released August 21, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  iommu/arm-smmu-v3: Don\u0027t unregister on shutdown...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  iommu/arm-smmu-v3: Don\u0027t unregister on shutdown  Similar to SMMUv2, this driver calls iommu_device_unregister() from the shutdown path, which removes the IOMMU groups with no coordination whatsoever with their users - shutdown methods are optional in device drivers. This can lead to NULL pointer dereferences in those drivers\u0027 DMA API calls, or worse.  Instead of calling the full arm_smmu_device_remove() from arm_smmu_device_shutdown(), let\u0027s pick only the relevant function call - arm_smmu_device_disable() - more or less the reverse of arm_smmu_device_reset() - and call just that from the shutdown path.",
  "published": "2024-08-21T07:15:05Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00205,
  "epssPercentile": 0.10586,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2022-48894",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48894",
      "released": "2024-08-21T07:15:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2022-48894",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48894",
      "released": "2024-08-21T07:15:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2022-48894",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48894",
      "released": "2024-08-21T07:15:05Z"
    }
  ],
  "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"
  }
}