{
  "cveId": "CVE-2021-47652",
  "url": "https://patchblox.com/security/cve/CVE-2021-47652",
  "summary": "CVE-2021-47652 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47652, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  video: fbdev: smscufx: Fix null-ptr-deref in ufx...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()  I got a null-ptr-deref report:  BUG: kernel NULL pointer dereference, address: 0000000000000000 ... RIP: 0010:fb_destroy_modelist\u002B0x38/0x100 ... Call Trace:  ufx_usb_probe.cold\u002B0x2b5/0xac1 [smscufx]  usb_probe_interface\u002B0x1aa/0x3c0 [usbcore]  really_probe\u002B0x167/0x460 ...  ret_from_fork\u002B0x1f/0x30  If fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will be called to destroy modelist in the error handling path. But modelist has not been initialized yet, so it will result in null-ptr-deref.  Initialize modelist before calling fb_alloc_cmap() to fix this bug.",
  "published": "2025-02-26T06:37:06Z",
  "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": 0.0026,
  "epssPercentile": 0.17765,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2021-47652",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47652",
      "released": "2025-02-26T06:37:06Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2021-47652",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47652",
      "released": "2025-02-26T06:37:06Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2021-47652",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47652",
      "released": "2025-02-26T06:37:06Z"
    }
  ],
  "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"
  }
}