CVE-2026-46109 (GCVE-0-2026-46109)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-06-14 17:55
VLAI
Title
usb: ulpi: fix memory leak on ulpi_register() error paths
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: ulpi: fix memory leak on ulpi_register() error paths Commit 01af542392b5 ("usb: ulpi: fix double free in ulpi_register_interface() error path") removed kfree(ulpi) from ulpi_register_interface() to fix a double-free when device_register() fails. But when ulpi_of_register() or ulpi_read_id() fail before device_register() is called, the ulpi allocation is leaked. Add kfree(ulpi) on both error paths to properly clean up the allocation.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2f70ba9dae13a190673cc3f9b4aad52179738f60 , < 0c2c0c6820fe96fa4be0a0499f8d3f3321b9af6c (git)
Affected: ee248e6e941e4f2e634df2bd43e5f1ef810ab6df , < f1b855c00988a9cb41134cab7cf9faedba775dd9 (git)
Affected: 272a9b26c336a295e4e209157fed809706c1b1f7 , < 7bd61ed0bf9f4f1f2673d489b3bda1555b48d054 (git)
Affected: aaeae6533d77e6ed4def85baec01e2815ebbef61 , < b0c0d44adb55c66663886cb6e30ee92cbb0f5385 (git)
Affected: 8763f8317bb389aded32a32b08f6751cfff657d2 , < be2c1d825f54277472c87019e82013ac534ddc4c (git)
Affected: 38c28fe25611099230f0965c925499bfcf46a795 , < 2a71e01b2cf9b4329ff67102c1bea7448c2a2d2d (git)
Affected: 01af542392b5d41fd659d487015a71f627accce3 , < f30ccfc2985590b33a23a3d8bed7ca16c0af551b (git)
Affected: 01af542392b5d41fd659d487015a71f627accce3 , < 0b9fcab1b8608d429e5f239afb197de928d4de7d (git)
Affected: a6e5461f076c2ef63159f18e5cdbd30b50f0bc15 (git)
Affected: 5.10.253 , < 5.10.258 (semver)
Affected: 5.15.203 , < 5.15.209 (semver)
Affected: 6.1.168 , < 6.1.175 (semver)
Affected: 6.6.134 , < 6.6.140 (semver)
Affected: 6.12.81 , < 6.12.88 (semver)
Affected: 6.18.22 , < 6.18.30 (semver)
Affected: 6.19.12 , < 6.20 (semver)
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Linux Linux Affected: 7.0
Unaffected: 0 , < 7.0 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.88 , ≤ 6.12.* (semver)
Unaffected: 6.18.30 , ≤ 6.18.* (semver)
Unaffected: 7.0.7 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

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                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*",
                    "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ulpi: fix memory leak on ulpi_register() error paths\n\nCommit 01af542392b5 (\"usb: ulpi: fix double free in\nulpi_register_interface() error path\") removed kfree(ulpi) from\nulpi_register_interface() to fix a double-free when device_register()\nfails.\n\nBut when ulpi_of_register() or ulpi_read_id() fail before\ndevice_register() is called, the ulpi allocation is leaked.\n\nAdd kfree(ulpi) on both error paths to properly clean up the allocation."
          }
        ],
        "id": "CVE-2026-46109",
        "lastModified": "2026-06-24T18:31:16.600",
        "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": "2026-05-28T10:16:26.307",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0b9fcab1b8608d429e5f239afb197de928d4de7d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0c2c0c6820fe96fa4be0a0499f8d3f3321b9af6c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2a71e01b2cf9b4329ff67102c1bea7448c2a2d2d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7bd61ed0bf9f4f1f2673d489b3bda1555b48d054"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b0c0d44adb55c66663886cb6e30ee92cbb0f5385"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/be2c1d825f54277472c87019e82013ac534ddc4c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f1b855c00988a9cb41134cab7cf9faedba775dd9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f30ccfc2985590b33a23a3d8bed7ca16c0af551b"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Undergoing Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:40:52+00:00",
      "cve": "CVE-2026-46109",
      "id": "CVE-2026-46109",
      "initial_release_date": "2026-05-28T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: ulpi: fix memory leak on ulpi_register() error paths",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46109.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-16T00:12:52Z",
      "cve": "CVE-2026-46109",
      "id": "CVE-2026-46109",
      "initial_release_date": "2026-05-29T01:17:05Z",
      "product_status:first_fixed": "2",
      "product_status:known_not_affected": "173",
      "product_status:recommended": "469",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46109",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46109.json",
      "version": "14"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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