{
  "cveId": "CVE-2026-90409",
  "url": "https://patchblox.com/security/cve/CVE-2026-90409",
  "summary": "CVE-2026-90409 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-90409, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  drm/panthor: Add vm_bind region with kbo range o...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/panthor: Add vm_bind region with kbo range overlap check  When a VM is created, caller has to specify the range of the address space carve-out set aside for mapping kernel BO\u0027s. That means vm_bind mappings of UM-exposed BO\u0027s should not intersect with that region, but at the moment we\u0027re not checking this.  At first, I thought of giving these values to drm_gpuvm_init() through its reserve_{offset, range} arguments, but it turns out that is meant for VM address spans that are not managed through the usual drm_gpuvm split/merge circuit, so storing the end of the user VA range at VM creation time and doing a quick check in the vm_bind ioctl path was the simplest workaround.  The new check also makes sure vm_bind range doesn\u0027t overflow the size of a 64-bit unsigned integer. That was already being done further down the call stack inside drm_gpuvm_sm_map -\u003E drm_gpuvm_range_valid, but it\u0027s best to fail early in the driver before GPUVM functions are invoked so that we won\u0027t waste time allocating vm_bind context resources.",
  "published": "2026-09-17T17:17:40Z",
  "severity": "",
  "epss": 0.00209,
  "epssPercentile": 0.11091,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-90409",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90409",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-90409",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90409",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}