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CVE-2023-53550

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

cpufreq: amd-pstate: fix global sysfs attribute type

In commit 3666062b87ec ("cpufreq: amd-pstate: move to use bus_get_dev_root()") the "amd_pstate" attributes where moved from a dedicated kobject to the cpu root kobject.

While the dedicated kobject expects to contain kobj_attributes the root kobject needs device_attributes.

As the changed arguments are not used by the callbacks it works most of the time. However CFI will detect this issue:

Detalles técnicos trazas, registros y código del informe original
[ 4947.849350] CFI failure at dev_attr_show+0x24/0x60 (target: show_status+0x0/0x70; expected type: 0x8651b1de)
...
[ 4947.849409] Call Trace:
[ 4947.849410]  <TASK>
[ 4947.849411]  ? __warn+0xcf/0x1c0
[ 4947.849414]  ? dev_attr_show+0x24/0x60
[ 4947.849415]  ? report_cfi_failure+0x4e/0x60
[ 4947.849417]  ? handle_cfi_failure+0x14c/0x1d0
[ 4947.849419]  ? __cfi_show_status+0x10/0x10
[ 4947.849420]  ? handle_bug+0x4f/0x90
[ 4947.849421]  ? exc_invalid_op+0x1a/0x60
[ 4947.849422]  ? asm_exc_invalid_op+0x1a/0x20
[ 4947.849424]  ? __cfi_show_status+0x10/0x10
[ 4947.849425]  ? dev_attr_show+0x24/0x60
[ 4947.849426]  sysfs_kf_seq_show+0xa6/0x110
[ 4947.849433]  seq_read_iter+0x16c/0x4b0
[ 4947.849436]  vfs_read+0x272/0x2d0
[ 4947.849438]  ksys_read+0x72/0xe0
[ 4947.849439]  do_syscall_64+0x76/0xb0
[ 4947.849440]  ? do_user_addr_fault+0x252/0x650
[ 4947.849442]  ? exc_page_fault+0x7a/0x1b0
[ 4947.849443]  entry_SYSCALL_64_after_hwframe+0x72/0xdc

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-53550",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3666062b87ec8be4b85dc475dfb54bb17e10a7f6",
              "lessThan": "ddcfc33a20380508f7fea18e1c330abe17ed4fc0",
              "versionType": "git"
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            {
              "status": "affected",
              "version": "3666062b87ec8be4b85dc475dfb54bb17e10a7f6",
              "lessThan": "5e720f8c8c9d959283c3908bbf32a91a01a86547",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/cpufreq/amd-pstate.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.4.11",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/cpufreq/amd-pstate.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-04T16:15:50.260",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5e720f8c8c9d959283c3908bbf32a91a01a86547",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ddcfc33a20380508f7fea18e1c330abe17ed4fc0",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: amd-pstate: fix global sysfs attribute type\n\nIn commit 3666062b87ec (\"cpufreq: amd-pstate: move to use bus_get_dev_root()\")\nthe \"amd_pstate\" attributes where moved from a dedicated kobject to the\ncpu root kobject.\n\nWhile the dedicated kobject expects to contain kobj_attributes the root\nkobject needs device_attributes.\n\nAs the changed arguments are not used by the callbacks it works most of\nthe time.\nHowever CFI will detect this issue:\n\n[ 4947.849350] CFI failure at dev_attr_show+0x24/0x60 (target: show_status+0x0/0x70; expected type: 0x8651b1de)\n...\n[ 4947.849409] Call Trace:\n[ 4947.849410]  <TASK>\n[ 4947.849411]  ? __warn+0xcf/0x1c0\n[ 4947.849414]  ? dev_attr_show+0x24/0x60\n[ 4947.849415]  ? report_cfi_failure+0x4e/0x60\n[ 4947.849417]  ? handle_cfi_failure+0x14c/0x1d0\n[ 4947.849419]  ? __cfi_show_status+0x10/0x10\n[ 4947.849420]  ? handle_bug+0x4f/0x90\n[ 4947.849421]  ? exc_invalid_op+0x1a/0x60\n[ 4947.849422]  ? asm_exc_invalid_op+0x1a/0x20\n[ 4947.849424]  ? __cfi_show_status+0x10/0x10\n[ 4947.849425]  ? dev_attr_show+0x24/0x60\n[ 4947.849426]  sysfs_kf_seq_show+0xa6/0x110\n[ 4947.849433]  seq_read_iter+0x16c/0x4b0\n[ 4947.849436]  vfs_read+0x272/0x2d0\n[ 4947.849438]  ksys_read+0x72/0xe0\n[ 4947.849439]  do_syscall_64+0x76/0xb0\n[ 4947.849440]  ? do_user_addr_fault+0x252/0x650\n[ 4947.849442]  ? exc_page_fault+0x7a/0x1b0\n[ 4947.849443]  entry_SYSCALL_64_after_hwframe+0x72/0xdc"
    }
  ],
  "lastModified": "2026-06-17T06:45:35.137",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5973AAD4-BEF4-4A23-9697-7061E1749BFF",
              "versionEndExcluding": "6.4.11",
              "versionStartIncluding": "6.4"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F5608371-157A-4318-8A2E-4104C3467EA1"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2226A776-DF8C-49E0-A030-0A7853BB018A"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6F15C659-DF06-455A-9765-0E6DE920F29A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}