fkie_cve-2023-52939
Vulnerability from fkie_nvd
Published
2025-03-27 17:15
Modified
2025-04-15 14:46
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b79ba5953f6fdc5559389ad415620bffc24f024bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2


To clipboard 

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              "versionEndExcluding": "6.1.11",
              "versionStartIncluding": "5.4",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()\n\nAs commit 18365225f044 (\"hwpoison, memcg: forcibly uncharge LRU pages\"),\nhwpoison will forcibly uncharg a LRU hwpoisoned page, the folio_memcg\ncould be NULl, then, mem_cgroup_track_foreign_dirty_slowpath() could\noccurs a NULL pointer dereference, let\u0027s do not record the foreign\nwritebacks for folio memcg is null in mem_cgroup_track_foreign_dirty() to\nfix it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: memcg: corregir puntero NULL en mem_cgroup_track_foreign_dirty_slowpath() Como confirmaci\u00f3n 18365225f044 (\"hwpoison, memcg: descargar a la fuerza p\u00e1ginas LRU\"), hwpoison descargar\u00e1 a la fuerza una p\u00e1gina LRU hwpoisoned, folio_memcg podr\u00eda ser NUL, luego, mem_cgroup_track_foreign_dirty_slowpath() podr\u00eda producir una desreferencia de puntero NULL, no registremos las reescrituras externas para folio memcg es nulo en mem_cgroup_track_foreign_dirty() para solucionarlo."
    }
  ],
  "id": "CVE-2023-52939",
  "lastModified": "2025-04-15T14:46:06.930",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-03-27T17:15:43.803",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9"
    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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