{
  "id": "CVE-2026-98201",
  "url": "https://spydr.io/cve/CVE-2026-98201",
  "published": "2026-10-06T09:18:05.900Z",
  "modified": "2026-10-06T09:18:05.900Z",
  "score": null,
  "severity": null,
  "cvss_version": null,
  "vector": null,
  "score_source": null,
  "epss": 0.00184,
  "epss_percentile": 0.07302,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": null,
  "vendors": [
    "Linux"
  ],
  "products": [
    "Linux"
  ],
  "cwes": [],
  "description": "In the Linux kernel, the following vulnerability has been resolved: Input: zero ff_effect before compat copy in input_ff_effect_from_user In the compat path input_ff_effect_from_user() aliases the caller's native struct ff_effect with the smaller struct ff_effect_compat and copies only the compat sized prefix: compat_effect = (struct ff_effect_compat *)effect; if (copy_from_user(compat_effect, buffer, sizeof(struct ff_effect_compat))) The tail of the native structure is never written. Callers pass an uninitialized on-stack object, for example evdev_do_ioctl() for EVIOCSFF, so those bytes keep their previous stack contents. input_ff_upload() then stores the full native structure in ff->effects[id], from where a uinput based force feedback daemon can read it back via UI_BEGIN_FF_UPLOAD, disclosing kernel stack memory to userspace. Zero the effect before the compat copy.",
  "status": "Received",
  "score_type": null,
  "scores": {
    "cvss_v40": null,
    "cvss_v31": null,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0d05b43b55d4784a42ce8fb318175f8ad7d9af5a",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/6c26681c5668c973bd0e951407d670ac60d9cd66",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/b878720e8bcaa4cf7163a5081f904dd6baf11b2c",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/c5e573bb095d502be7cbbaa99c26a20984111c6d",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/ec174c2ab1abb76b20fa167c6db848c3d97aa838",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/ed0406e490f48ed180df140fe2a81be26bccb1a9",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/ed0905fda39682d3da7937184397d3276abbffa8",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/f84819ef8d66931ee3998fee3c4f03230f4cb6cc",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98201",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}