FKIE_CVE-2025-68181

Vulnerability from fkie_nvd - Published: 2025-12-16 14:15 - Updated: 2026-10-15 22:19
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/radeon: Remove calls to drm_put_dev() Since the allocation of the drivers main structure was changed to devm_drm_dev_alloc() drm_put_dev()'ing to trigger it to be free'd should be done by devres. However, drm_put_dev() is still in the probe error and device remove paths. When the driver fails to probe warnings like the following are shown because devres is trying to drm_put_dev() after the driver already did it. [ 5.642230] radeon 0000:01:05.0: probe with driver radeon failed with error -22 [ 5.649605] ------------[ cut here ]------------ [ 5.649607] refcount_t: underflow; use-after-free. [ 5.649620] WARNING: CPU: 0 PID: 357 at lib/refcount.c:28 refcount_warn_saturate+0xbe/0x110 (cherry picked from commit 3eb8c0b4c091da0a623ade0d3ee7aa4a93df1ea4)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fa41445d8c98f2a65503c373796466496edc0e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/745bae76acdd71709773c129a69deca01036250b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec18f6b2c743cc471b2539ddb5caed20a012e640
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/radeon/radeon_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2fa41445d8c98f2a65503c373796466496edc0e7",
              "status": "affected",
              "version": "a9ed2f052c5c14e4be58c5ec8794dffc87588123",
              "versionType": "git"
            },
            {
              "lessThan": "ec18f6b2c743cc471b2539ddb5caed20a012e640",
              "status": "affected",
              "version": "a9ed2f052c5c14e4be58c5ec8794dffc87588123",
              "versionType": "git"
            },
            {
              "lessThan": "745bae76acdd71709773c129a69deca01036250b",
              "status": "affected",
              "version": "a9ed2f052c5c14e4be58c5ec8794dffc87588123",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/radeon/radeon_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.58",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "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/radeon: Remove calls to drm_put_dev()\n\nSince the allocation of the drivers main structure was changed to\ndevm_drm_dev_alloc() drm_put_dev()\u0027ing to trigger it to be free\u0027d\nshould be done by devres.\n\nHowever, drm_put_dev() is still in the probe error and device remove\npaths. When the driver fails to probe warnings like the following are\nshown because devres is trying to drm_put_dev() after the driver\nalready did it.\n\n[    5.642230] radeon 0000:01:05.0: probe with driver radeon failed with error -22\n[    5.649605] ------------[ cut here ]------------\n[    5.649607] refcount_t: underflow; use-after-free.\n[    5.649620] WARNING: CPU: 0 PID: 357 at lib/refcount.c:28 refcount_warn_saturate+0xbe/0x110\n\n(cherry picked from commit 3eb8c0b4c091da0a623ade0d3ee7aa4a93df1ea4)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/radeon: Eliminar llamadas a drm_put_dev()\n\nDado que la asignaci\u00f3n de la estructura principal del controlador se cambi\u00f3 a devm_drm_dev_alloc(), la llamada a drm_put_dev() para activar su liberaci\u00f3n deber\u00eda ser realizada por devres.\n\nSin embargo, drm_put_dev() todav\u00eda est\u00e1 en las rutas de error de sondeo y eliminaci\u00f3n de dispositivos. Cuando el controlador falla al sondear, se muestran advertencias como las siguientes porque devres est\u00e1 intentando llamar a drm_put_dev() despu\u00e9s de que el controlador ya lo hizo.\n\n[    5.642230] radeon 0000:01:05.0: el sondeo con el controlador radeon fall\u00f3 con error -22\n[    5.649605] ------------[ cortar aqu\u00ed ]------------\n[    5.649607] refcount_t: desbordamiento inferior; uso despu\u00e9s de liberaci\u00f3n.\n[    5.649620] ADVERTENCIA: CPU: 0 PID: 357 en lib/refcount.c:28 refcount_warn_saturate+0xbe/0x110\n\n(seleccionado de la confirmaci\u00f3n 3eb8c0b4c091da0a623ade0d3ee7aa4a93df1ea4)"
    }
  ],
  "id": "CVE-2025-68181",
  "lastModified": "2026-10-15T22:19:09.670",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-68181",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-15T21:59:49.394816Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-16T14:15:50.660",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fa41445d8c98f2a65503c373796466496edc0e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/745bae76acdd71709773c129a69deca01036250b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ec18f6b2c743cc471b2539ddb5caed20a012e640"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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