{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.4-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "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's 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.",
  "id": "DEBIAN-CVE-2026-64447",
  "modified": "2026-09-14T16:47:44.553315780Z",
  "published": "2026-07-25T10:17:29.437Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-64447"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-64447"
  ]
}