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CVE-2023-54083 (GCVE-0-2023-54083)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:06 – Updated: 2026-08-05 09:17
VLAI
Title
phy: tegra: xusb: Clear the driver reference in usb-phy dev
Summary
In the Linux kernel, the following vulnerability has been resolved: phy: tegra: xusb: Clear the driver reference in usb-phy dev For the dual-role port, it will assign the phy dev to usb-phy dev and use the port dev driver as the dev driver of usb-phy. When we try to destroy the port dev, it will destroy its dev driver as well. But we did not remove the reference from usb-phy dev. This might cause the use-after-free issue in KASAN.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e8f7d2f409a15c519d5a6085777d85c1c4bab73a , < b6a107c52073496d2e5d2837915f59fb3103832f (git)
Affected: e8f7d2f409a15c519d5a6085777d85c1c4bab73a , < b84998a407a882991916b1a61d987c400d8a0ce6 (git)
Affected: e8f7d2f409a15c519d5a6085777d85c1c4bab73a , < 238edc04ddb9d272b38f5419bcd419ad3b92b91b (git)
Affected: e8f7d2f409a15c519d5a6085777d85c1c4bab73a , < 82187460347ad58fd6b06d2883da73c3f2df9631 (git)
Affected: e8f7d2f409a15c519d5a6085777d85c1c4bab73a , < c0c2fcb1325d0d4f3b322b5ee49385f8eca2560d (git)
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Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.188 , ≤ 5.10.* (semver)
Unaffected: 5.15.121 , ≤ 5.15.* (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/phy/tegra/xusb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "e8f7d2f409a15c519d5a6085777d85c1c4bab73a",
              "versionType": "git"
            },
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              "status": "affected",
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              "versionType": "git"
            },
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              "status": "affected",
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              "versionType": "git"
            }
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/phy/tegra/xusb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.188",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.121",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
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                },
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              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nphy: tegra: xusb: Clear the driver reference in usb-phy dev\n\nFor the dual-role port, it will assign the phy dev to usb-phy dev and\nuse the port dev driver as the dev driver of usb-phy.\n\nWhen we try to destroy the port dev, it will destroy its dev driver\nas well. But we did not remove the reference from usb-phy dev. This\nmight cause the use-after-free issue in KASAN."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is reached through the tegra-xusb-padctl platform driver teardown/probe-failure path, which is driven from local system interfaces (sysfs unbind, module unload) and local process activity, not from any network or peer-supplied data. No physical device insertion is needed since the padctl is an on-SoC platform device.\nAC:L - The dangling `dev.driver` and its subsequent dereference occur deterministically in the same teardown sequence \u2014 `devres_release_all()` frees the fake `device_driver` in `device_del(\u0026port-\u003edev)` and `phy_destroy()` reads it moments later \u2014 with no race the attacker cannot influence. The freed object is a small kmalloc allocation that a local attacker can reliably groom.\nPR:L - Exploitation of the freed `struct device_driver` \u2014 spraying the slab so the driver core reads attacker-controlled `pm`/`name` fields \u2014 is performed by an ordinary unprivileged local process, and the same teardown also executes on the boot-time probe-failure path with no privilege at all. Consistent with prior scoring of driver-remove-path use-after-frees in this subsystem class, PR:L is the higher defensible value.\nUI:N - No victim action is required; the use-after-free occurs automatically within the driver removal/probe-failure sequence. The attacker only needs to have its heap spray in place.\nS:U - Both the freed object and the code dereferencing it live in the kernel\u0027s own security authority, with no crossing of a VM, IOMMU, or sandbox boundary. This is a standard in-kernel memory-safety defect.\nC:H - The stale pointer is read by `dev_driver_string()` (`drv-\u003ename` passed to printk) and by `device_pm_check_callbacks()`, so reallocated heap contents can be dereferenced and leaked into kernel logs. Per use-after-free guidance, control over the freed object\u0027s contents yields an arbitrary-read primitive.\nI:H - `__rpm_get_callback()` loads a function pointer out of `dev-\u003edriver-\u003epm` on the freed object and invokes it, giving a direct control-flow hijack primitive once the slab object is reallocated with attacker-controlled data. Use-after-free of a structure containing function pointers is treated as High integrity impact.\nA:H - The KASAN-reported use-after-free dereferences freed memory during device removal, producing an oops or panic even without deliberate exploitation. Any kernel crash is scored High."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:17:04.479Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b6a107c52073496d2e5d2837915f59fb3103832f"
        },
        {
          "url": "https://git.kernel.org/stable/c/b84998a407a882991916b1a61d987c400d8a0ce6"
        },
        {
          "url": "https://git.kernel.org/stable/c/238edc04ddb9d272b38f5419bcd419ad3b92b91b"
        },
        {
          "url": "https://git.kernel.org/stable/c/82187460347ad58fd6b06d2883da73c3f2df9631"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0c2fcb1325d0d4f3b322b5ee49385f8eca2560d"
        }
      ],
      "title": "phy: tegra: xusb: Clear the driver reference in usb-phy dev",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54083",
    "datePublished": "2025-12-24T13:06:14.771Z",
    "dateReserved": "2025-12-24T13:02:52.515Z",
    "dateUpdated": "2026-08-05T09:17:04.479Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-54083",
      "date": "2026-09-16",
      "epss": "0.00156",
      "percentile": "0.0512"
    },
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T22:52:27+00:00",
      "cve": "CVE-2023-54083",
      "id": "CVE-2023-54083",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "280",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "174",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: phy: tegra: xusb: Clear the driver reference in usb-phy dev",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54083.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:04:01Z",
      "cve": "CVE-2023-54083",
      "id": "CVE-2023-54083",
      "initial_release_date": "2025-12-25T00:56:02Z",
      "product_status:known_affected": "401",
      "product_status:known_not_affected": "236",
      "product_status:recommended": "408",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-54083",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-54083.json",
      "version": "35"
    }
  }
}



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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

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.


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.