{
  "cveId": "CVE-2026-89624",
  "url": "https://patchblox.com/security/cve/CVE-2026-89624",
  "summary": "CVE-2026-89624 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-89624, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  HID: universal-pidff: stop the device when force...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  HID: universal-pidff: stop the device when force-feedback init fails  universal_pidff_probe() starts the device with hid_hw_start() and then, if force-feedback initialisation fails, returns the error through a label that only does \u0022return error\u0022.  The device is left started.  The HID core does not unwind on the driver\u0027s behalf.  __hid_device_probe() releases the devres group, closes the report and clears hdev-\u003Edriver:  \tif (ret) { \t\tdevres_release_group(\u0026hdev-\u003Edev, hdev-\u003Edevres_group_id); \t\thid_close_report(hdev); \t\thdev-\u003Edriver = NULL; \t}  The hidraw character device that hid_hw_start() registered through hid_connect() is allocated with kzalloc() and added with cdev_device_add(), so it is not devres-managed and survives that.  With hdev-\u003Edriver NULL, hid_device_remove() skips hid_hw_stop() as well, because it only unwinds while a driver is still attached.  The registration therefore outlives the device on both paths.  Opening the surviving /dev/hidrawX writes into freed memory.  KASAN reports a use-after-free write from hidraw_open() -\u003E hid_hw_open() -\u003E the transport\u0027s open callback, which takes a spinlock inside the freed object. A descriptor that carries a PID usage page and no input reports is enough: hidraw claims the device so hid_hw_start() succeeds, while hid-\u003Einputs stays empty so force-feedback init fails.  The other failure returns in hid_pidff_init_with_quirks() - no output reports, an allocation failure, pidff_init_fields(), pidff_check_autocenter(), an unusable effect count, input_ff_create() - all reach the same label.  Stop the device on that path.  hid-dr.c and hid-emsff.c, which start the device with the same HID_CONNECT_DEFAULT \u0026 ~HID_CONNECT_FF mask, already do this.  The two earlier gotos must keep returning without hid_hw_stop(), since neither has a started device, so give the path that fails after the start its own label.  Discovered by XBOW, triaged by Baul Lee \u003Cbaul.lee@xbow.com\u003E",
  "published": "2026-09-11T20:19:47Z",
  "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": 0.00171,
  "epssPercentile": 0.06525,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.111-1",
      "fix": "DEBIAN-CVE-2026-89624",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89624",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-89624",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89624",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.111-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-89624",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89624",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}