FKIE_CVE-2025-68181

Vulnerability from fkie_nvd - Published: 2025-12-16 14:15 - Updated: 2026-06-17 09:58
Severity
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)"
    }
  ],
  "id": "CVE-2025-68181",
  "lastModified": "2026-06-17T09:58:41.730",
  "metrics": {},
  "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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