drm/panthor: Prevent potential UAF in group creation

{
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  "url": "https://osv.dev/vulnerability/CVE-2025-68735",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/panthor: Prevent potential UAF in group creation",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Prevent potential UAF in group creation This commit prevents the possibility of a use after free issue in the GROUP_CREATE ioctl function, which arose as pointer to the group is accessed in that ioctl function after storing it in the Xarray. A malicious userspace can second guess the handle of a group and try to call GROUP_DESTROY ioctl from another thread around the same time as GROUP_CREATE ioctl. To prevent the use after free exploit, this commit uses a mark on an entry of group pool Xarray which is added just before returning from the GROUP_CREATE ioctl function. The mark is checked for all ioctls that specify the group handle and so userspace won't be abe to delete a group that isn't marked yet. v2: Add R-bs and fixes tags",
    "evidence": "osv:CVE-2025-68735",
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            "value": "6.12.114",
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    "severity": "high",
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      "id": "CVE-2025-68735",
      "aliases": [
        "CVE-2025-68735"
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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      "modified": "2026-10-28T02:30:27.618834482Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/c646ebff3fa571e7ea974235286fb9ed3edc260c",
        "https://git.kernel.org/stable/c/c6bbec068a9accd6f1df05f3df9a5254c99292ee",
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        "https://git.kernel.org/stable/c/eec7e23d848d2194dd8791fcd0f4a54d4378eecd",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68735.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68735",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "related_cves": [
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        "value": "CVE-2025-68735",
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 494399,
  "published_at": "2025-12-24T12:09:34.364+00:00"
}