mm, slab: clean up slab->obj_exts always

{
  "id": "f826b0810e4aa586037f757e03c942c648944a2453b713893d4c3fce7df3d13f",
  "url": "https://osv.dev/vulnerability/CVE-2025-37908",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mm, slab: clean up slab->obj_exts always",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: mm, slab: clean up slab->obj_exts always When memory allocation profiling is disabled at runtime or due to an error, shutdown_mem_profiling() is called: slab->obj_exts which previously allocated remains. It won't be cleared by unaccount_slab() because of mem_alloc_profiling_enabled() not true. It's incorrect, slab->obj_exts should always be cleaned up in unaccount_slab() to avoid following error: [...]BUG: Bad page state in process... .. [...]page dumped because: page still charged to cgroup [andriy.shevchenko@linux.intel.com: fold need_slab_obj_ext() into its only user]",
    "evidence": "osv:CVE-2025-37908",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.28",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-37908",
      "aliases": [
        "CVE-2025-37908"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "21c690a349baab895dc68ab70d291e1598d7109d"
                },
                {
                  "fixed": "dab2a13059a475b6392550f882276e170fe2fcff"
                },
                {
                  "fixed": "01db0e1a48345aa1937f3bdfc7c7108d03ebcf7e"
                },
                {
                  "fixed": "be8250786ca94952a19ce87f98ad9906448bc9ef"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37908.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.10.0"
                },
                {
                  "fixed": "6.12.28"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37908.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.481443329Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/01db0e1a48345aa1937f3bdfc7c7108d03ebcf7e",
        "https://git.kernel.org/stable/c/be8250786ca94952a19ce87f98ad9906448bc9ef",
        "https://git.kernel.org/stable/c/dab2a13059a475b6392550f882276e170fe2fcff",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37908.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37908",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37908.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37908",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521052,
  "published_at": "2025-05-20T15:21:41.121+00:00"
}