CVE-2025-68181 (GCVE-0-2025-68181)
Vulnerability from cvelistv5
Published
2025-12-16 13:42
Modified
2025-12-16 13:42
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
Impacted products
Vendor Product Version
Linux Linux Version: a9ed2f052c5c14e4be58c5ec8794dffc87588123
Version: a9ed2f052c5c14e4be58c5ec8794dffc87588123
Version: a9ed2f052c5c14e4be58c5ec8794dffc87588123
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.58",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.8",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-16T13:42:59.600Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2fa41445d8c98f2a65503c373796466496edc0e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec18f6b2c743cc471b2539ddb5caed20a012e640"
        },
        {
          "url": "https://git.kernel.org/stable/c/745bae76acdd71709773c129a69deca01036250b"
        }
      ],
      "title": "drm/radeon: Remove calls to drm_put_dev()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68181",
    "datePublished": "2025-12-16T13:42:59.600Z",
    "dateReserved": "2025-12-16T13:41:40.252Z",
    "dateUpdated": "2025-12-16T13:42:59.600Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68181\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-16T14:15:50.660\",\"lastModified\":\"2025-12-18T15:08:25.907\",\"vulnStatus\":\"Awaiting Analysis\",\"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)\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.