{
  "cveId": "CVE-2026-64447",
  "url": "https://patchblox.com/security/cve/CVE-2026-64447",
  "summary": "CVE-2026-64447 is fixed in linux on 1 platform by DEBIAN-CVE-2026-64447 (version 7.1.4-1), released August 7, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  staging: media: ipu7: fix double-free and use-af...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  staging: media: ipu7: fix double-free and use-after-free in error paths  In both ipu7_isys_init() and ipu7_psys_init(), pdata is allocated and then passed to ipu7_bus_initialize_device(), which stores it in adev-\u003Epdata. The ipu7_bus_release() function frees adev-\u003Epdata when the device\u0027s reference count drops to zero.  Two error paths incorrectly call kfree(pdata) after the device teardown has already freed it:  1. When ipu7_mmu_init() fails: put_device() is called, which drops the    reference count to zero and triggers ipu7_bus_release() -\u003E    kfree(pdata). The subsequent kfree(pdata) is a double-free.  2. When ipu7_bus_add_device() fails: it calls auxiliary_device_uninit()    internally, which calls put_device() -\u003E ipu7_bus_release() -\u003E    kfree(pdata). The subsequent kfree(pdata) is again a double-free.  Note that the kfree(pdata) when ipu7_bus_initialize_device() itself fails is correct, because in that case auxiliary_device_init() failed and the release function was never set up, so pdata must be freed manually.  Additionally, the error code was not saved before calling put_device(), causing ERR_CAST() to dereference the already-freed adev pointer when constructing the return value. Fix this by saving the error from dev_err_probe() before put_device() and returning ERR_PTR() instead.  Remove the redundant kfree(pdata) calls and fix the use-after-free in the return values of the two affected error paths.",
  "published": "2026-07-25T10:17:29Z",
  "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": 0.00168,
  "epssPercentile": 0.06213,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.4-1",
      "fix": "DEBIAN-CVE-2026-64447",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64447",
      "released": "2026-08-07T15:22:10Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}