CVE-2024-53192 (GCVE-0-2024-53192)

Vulnerability from cvelistv5 – Published: 2024-12-27 13:49 – Updated: 2026-08-05 11:44
VLAI
Title
clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access
Summary
In the Linux kernel, the following vulnerability has been resolved: clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access Flexible-array member `hws` in `struct clk_hw_onecell_data` is annotated with the `counted_by()` attribute. This means that when memory is allocated for this array, the _counter_, which in this case is member `num` in the flexible structure, should be set to the maximum number of elements the flexible array can contain, or fewer. In this case, the total number of elements for the flexible array is determined by variable `clks_num` when allocating heap space via `devm_kzalloc()`, as shown below: 289 struct loongson2_clk_provider *clp; ... 296 for (p = data; p->name; p++) 297 clks_num++; 298 299 clp = devm_kzalloc(dev, struct_size(clp, clk_data.hws, clks_num), 300 GFP_KERNEL); So, `clp->clk_data.num` should be set to `clks_num` or less, and not exceed `clks_num`, as is currently the case. Otherwise, if data is written into `clp->clk_data.hws[clks_num]`, the instrumentation provided by the compiler won't detect the overflow, leading to a memory corruption bug at runtime. Fix this issue by setting `clp->clk_data.num` to `clks_num`.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 2025-02-18 16:03 UTC
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9796ec0bd04bb0e70487127d44949ca0554df5d3 , < b96fc194984d0c82de1ca2b4166b35b1298b216c (git)
Affected: 9796ec0bd04bb0e70487127d44949ca0554df5d3 , < 1bf8877150128c3abd9d233886a05f6966fbf0c7 (git)
Affected: 9796ec0bd04bb0e70487127d44949ca0554df5d3 , < 02fb4f0084331ef72c28d0c70fcb15d1bea369ec (git)
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Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.11.11 , ≤ 6.11.* (semver)
Unaffected: 6.12.2 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: clk-loongson2: Se corrige un desbordamiento de b\u00fafer potencial en el acceso a miembros de la matriz flexible El miembro de la matriz flexible `hws` en `struct clk_hw_onecell_data` est\u00e1 anotado con el atributo `counted_by()`. Esto significa que cuando se asigna memoria para esta matriz, el _contador_, que en este caso es el miembro `num` en la estructura flexible, se debe establecer en el n\u00famero m\u00e1ximo de elementos que la matriz flexible puede contener, o menos. En este caso, el n\u00famero total de elementos para la matriz flexible se determina mediante la variable `clks_num` al asignar espacio de mont\u00f3n a trav\u00e9s de `devm_kzalloc()`, como se muestra a continuaci\u00f3n: 289 struct loongson2_clk_provider *clp; ... 296 for (p = data; p-\u0026gt;name; p++) 297 clks_num++; 298 299 clp = devm_kzalloc(dev, struct_size(clp, clk_data.hws, clks_num), 300 GFP_KERNEL); Por lo tanto, `clp-\u0026gt;clk_data.num` debe establecerse en `clks_num` o menos, y no superar `clks_num`, como es el caso actualmente. De lo contrario, si los datos se escriben en `clp-\u0026gt;clk_data.hws[clks_num]`, la instrumentaci\u00f3n proporcionada por el compilador no detectar\u00e1 el desbordamiento, lo que provocar\u00e1 un error de corrupci\u00f3n de memoria en tiempo de ejecuci\u00f3n. Solucione este problema estableciendo `clp-\u0026gt;clk_data.num` en `clks_num`."
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-53192.json",
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                  "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"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-53192",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-02-18T16:03:52.402922Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-120",
                    "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-02-18T16:03:53.766Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/clk/clk-loongson2.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "b96fc194984d0c82de1ca2b4166b35b1298b216c",
                  "status": "affected",
                  "version": "9796ec0bd04bb0e70487127d44949ca0554df5d3",
                  "versionType": "git"
                },
                {
                  "lessThan": "1bf8877150128c3abd9d233886a05f6966fbf0c7",
                  "status": "affected",
                  "version": "9796ec0bd04bb0e70487127d44949ca0554df5d3",
                  "versionType": "git"
                },
                {
                  "lessThan": "02fb4f0084331ef72c28d0c70fcb15d1bea369ec",
                  "status": "affected",
                  "version": "9796ec0bd04bb0e70487127d44949ca0554df5d3",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/clk/clk-loongson2.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.10"
                },
                {
                  "lessThan": "6.10",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.11.*",
                  "status": "unaffected",
                  "version": "6.11.11",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.13",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11.11",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.2",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: clk-loongson2: Fix potential buffer overflow in flexible-array member access\n\nFlexible-array member `hws` in `struct clk_hw_onecell_data` is annotated\nwith the `counted_by()` attribute. This means that when memory is\nallocated for this array, the _counter_, which in this case is member\n`num` in the flexible structure, should be set to the maximum number of\nelements the flexible array can contain, or fewer.\n\nIn this case, the total number of elements for the flexible array is\ndetermined by variable `clks_num` when allocating heap space via\n`devm_kzalloc()`, as shown below:\n\n289         struct loongson2_clk_provider *clp;\n\t...\n296         for (p = data; p-\u003ename; p++)\n297                 clks_num++;\n298\n299         clp = devm_kzalloc(dev, struct_size(clp, clk_data.hws, clks_num),\n300                            GFP_KERNEL);\n\nSo, `clp-\u003eclk_data.num` should be set to `clks_num` or less, and not\nexceed `clks_num`, as is currently the case. Otherwise, if data is\nwritten into `clp-\u003eclk_data.hws[clks_num]`, the instrumentation\nprovided by the compiler won\u0027t detect the overflow, leading to a\nmemory corruption bug at runtime.\n\nFix this issue by setting `clp-\u003eclk_data.num` to `clks_num`."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T09:55:24.466Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/b96fc194984d0c82de1ca2b4166b35b1298b216c"
            },
            {
              "url": "https://git.kernel.org/stable/c/1bf8877150128c3abd9d233886a05f6966fbf0c7"
            },
            {
              "url": "https://git.kernel.org/stable/c/02fb4f0084331ef72c28d0c70fcb15d1bea369ec"
            }
          ],
          "title": "clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-53192",
        "datePublished": "2024-12-27T13:49:34.608Z",
        "dateReserved": "2024-11-19T17:17:25.013Z",
        "dateUpdated": "2025-05-04T09:55:24.466Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Sightings

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Nomenclature

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