CVE-2023-52939 (GCVE-0-2023-52939)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:37 – Updated: 2026-05-11 19:36
VLAI
Title
mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()
Summary
In the Linux kernel, the following vulnerability has been resolved: mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath() As commit 18365225f044 ("hwpoison, memcg: forcibly uncharge LRU pages"), hwpoison will forcibly uncharg a LRU hwpoisoned page, the folio_memcg could be NULl, then, mem_cgroup_track_foreign_dirty_slowpath() could occurs a NULL pointer dereference, let's do not record the foreign writebacks for folio memcg is null in mem_cgroup_track_foreign_dirty() to fix it.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 17:37 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7063 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 97b27821b4854ca744946dae32a3f2fd55bcd5bc , < b79ba5953f6fdc5559389ad415620bffc24f024b (git)
Affected: 97b27821b4854ca744946dae32a3f2fd55bcd5bc , < ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 6.1.11 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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              "url": "https://git.kernel.org/stable/c/ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9"
            }
          ],
          "title": "mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-52939",
        "datePublished": "2025-03-27T16:37:18.026Z",
        "dateReserved": "2024-08-21T06:07:11.022Z",
        "dateUpdated": "2025-10-01T17:37:10.025Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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