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CVE-2026-53028

Estado: AnalizadaMedia (5.5)—

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

usb: typec: Fix error pointer dereference

The variable tps->partner is checked for an error pointer and then if it is, it sends an error message but does not return and then immediately dereferenced a few lines below:

Add early return and fix spelling mistake in error message.

Detected by Smatch: drivers/usb/typec/tipd/core.c:827 cd321x_update_work() error: 'tps->partner' dereferencing possible ERR_PTR()

Detalles técnicos trazas, registros y código del informe original
tps->partner = typec_register_partner(tps->port, &desc);
if (IS_ERR(tps->partner))
	dev_warn(tps->dev, "%s: failed to register partnet\n", __func__);

if (desc.identity) {
	typec_partner_set_identity(tps->partner);
	cd321x->cur_partner_identity = st.partner_identity;
}

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-2026-53028",
  "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": "82432bbfb9e83b7e81d04660fe129b99a29b2ac2",
              "lessThan": "19951118fb22b5ad512379ee64510fe0e2c40eb3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "82432bbfb9e83b7e81d04660fe129b99a29b2ac2",
              "lessThan": "9e31082f92c913d74fefb4e60cd0284e605ba3a3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "82432bbfb9e83b7e81d04660fe129b99a29b2ac2",
              "lessThan": "f2529d08fcb429ea01bb87c326342f41483f8b2f",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/usb/typec/tipd/core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/usb/typec/tipd/core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-06-24T17:17:14.200",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/19951118fb22b5ad512379ee64510fe0e2c40eb3",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9e31082f92c913d74fefb4e60cd0284e605ba3a3",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f2529d08fcb429ea01bb87c326342f41483f8b2f",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: Fix error pointer dereference\n\nThe variable tps->partner is checked for an error pointer and then if it\nis, it sends an error message but does not return and then immediately\ndereferenced a few lines below:\n\ntps->partner = typec_register_partner(tps->port, &desc);\nif (IS_ERR(tps->partner))\n\tdev_warn(tps->dev, \"%s: failed to register partnet\\n\", __func__);\n\nif (desc.identity) {\n\ttypec_partner_set_identity(tps->partner);\n\tcd321x->cur_partner_identity = st.partner_identity;\n}\n\nAdd early return and fix spelling mistake in error message.\n\nDetected by Smatch:\ndrivers/usb/typec/tipd/core.c:827 cd321x_update_work() error:\n'tps->partner' dereferencing possible ERR_PTR()"
    }
  ],
  "lastModified": "2026-07-15T14:37:39.483",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2D1C0C76-C064-42A8-8213-A31A5DAE85EA",
              "versionEndExcluding": "6.18.33",
              "versionStartIncluding": "6.18"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4",
              "versionEndExcluding": "7.0.10",
              "versionStartIncluding": "6.19"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}