FKIE_CVE-2025-68735

Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-10-21 13:18
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c646ebff3fa571e7ea974235286fb9ed3edc260c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c6bbec068a9accd6f1df05f3df9a5254c99292ee
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eec7e23d848d2194dd8791fcd0f4a54d4378eecd
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/panthor/panthor_sched.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c6bbec068a9accd6f1df05f3df9a5254c99292ee",
              "status": "affected",
              "version": "de85488138247d034eb3241840424a54d660926b",
              "versionType": "git"
            },
            {
              "lessThan": "deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05",
              "status": "affected",
              "version": "de85488138247d034eb3241840424a54d660926b",
              "versionType": "git"
            },
            {
              "lessThan": "c646ebff3fa571e7ea974235286fb9ed3edc260c",
              "status": "affected",
              "version": "de85488138247d034eb3241840424a54d660926b",
              "versionType": "git"
            },
            {
              "lessThan": "eec7e23d848d2194dd8791fcd0f4a54d4378eecd",
              "status": "affected",
              "version": "de85488138247d034eb3241840424a54d660926b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/panthor/panthor_sched.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Prevent potential UAF in group creation\n\nThis commit prevents the possibility of a use after free issue in the\nGROUP_CREATE ioctl function, which arose as pointer to the group is\naccessed in that ioctl function after storing it in the Xarray.\nA malicious userspace can second guess the handle of a group and try\nto call GROUP_DESTROY ioctl from another thread around the same time\nas GROUP_CREATE ioctl.\n\nTo prevent the use after free exploit, this commit uses a mark on an\nentry of group pool Xarray which is added just before returning from\nthe GROUP_CREATE ioctl function. The mark is checked for all ioctls\nthat specify the group handle and so userspace won\u0027t be abe to delete\na group that isn\u0027t marked yet.\n\nv2: Add R-bs and fixes tags"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/panthor: Prevenir posible UAF en la creaci\u00f3n de grupos\n\nEste commit previene la posibilidad de un problema de uso despu\u00e9s de liberaci\u00f3n en la funci\u00f3n ioctl GROUP_CREATE, que surgi\u00f3 porque se accede al puntero al grupo en esa funci\u00f3n ioctl despu\u00e9s de almacenarlo en el Xarray. Un espacio de usuario malicioso puede adivinar el identificador de un grupo e intentar llamar a la ioctl GROUP_DESTROY desde otro hilo aproximadamente al mismo tiempo que la ioctl GROUP_CREATE.\n\nPara prevenir el exploit de uso despu\u00e9s de liberaci\u00f3n, este commit utiliza una marca en una entrada del Xarray del pool de grupos que se a\u00f1ade justo antes de regresar de la funci\u00f3n ioctl GROUP_CREATE. La marca se verifica para todas las ioctls que especifican el identificador del grupo y as\u00ed el espacio de usuario no podr\u00e1 eliminar un grupo que a\u00fan no est\u00e1 marcado.\n\nv2: A\u00f1adir las etiquetas R-bs y fixes"
    }
  ],
  "id": "CVE-2025-68735",
  "lastModified": "2026-10-21T13:18:24.103",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-24T13:16:28.440",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c646ebff3fa571e7ea974235286fb9ed3edc260c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c6bbec068a9accd6f1df05f3df9a5254c99292ee"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eec7e23d848d2194dd8791fcd0f4a54d4378eecd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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