Vulnerability-Lookup

GHSA-6VJ2-GJW9-6MGJ

Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-20 21:31

Details

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

usb: renesas_usbhs: fix use-after-free in ISR during device removal

In usbhs_remove(), the driver frees resources (including the pipe array) while the interrupt handler (usbhs_interrupt) is still registered. If an interrupt fires after usbhs_pipe_remove() but before the driver is fully unbound, the ISR may access freed memory, causing a use-after-free.

Fix this by calling devm_free_irq() before freeing resources. This ensures the interrupt handler is both disabled and synchronized (waits for any running ISR to complete) before usbhs_pipe_remove() is called.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43426"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T15:16:54Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: renesas_usbhs: fix use-after-free in ISR during device removal\n\nIn usbhs_remove(), the driver frees resources (including the pipe array)\nwhile the interrupt handler (usbhs_interrupt) is still registered. If an\ninterrupt fires after usbhs_pipe_remove() but before the driver is fully\nunbound, the ISR may access freed memory, causing a use-after-free.\n\nFix this by calling devm_free_irq() before freeing resources. This ensures\nthe interrupt handler is both disabled and synchronized (waits for any\nrunning ISR to complete) before usbhs_pipe_remove() is called.",
  "id": "GHSA-6vj2-gjw9-6mgj",
  "modified": "2026-05-20T21:31:28Z",
  "published": "2026-05-08T15:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43426"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-43426 (GCVE-0-2026-43426)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-05-11 22:24

Title

usb: renesas_usbhs: fix use-after-free in ISR during device removal

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: fix use-after-free in ISR during device removal In usbhs_remove(), the driver frees resources (including the pipe array) while the interrupt handler (usbhs_interrupt) is still registered. If an interrupt fires after usbhs_pipe_remove() but before the driver is fully unbound, the ISR may access freed memory, causing a use-after-free. Fix this by calling devm_free_irq() before freeing resources. This ensures the interrupt handler is both disabled and synchronized (waits for any running ISR to complete) before usbhs_pipe_remove() is called.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c7012fc73dab48294…
https://git.kernel.org/stable/c/51afaf919bbaacdd9…
https://git.kernel.org/stable/c/1899edac312ef17a7…
https://git.kernel.org/stable/c/9c6159d5b72d5fc26…
https://git.kernel.org/stable/c/6287e0c01ccb818e7…
https://git.kernel.org/stable/c/0b7d11fd6e742ecc0…
https://git.kernel.org/stable/c/6ffe44f022c95b1b2…
https://git.kernel.org/stable/c/3cbc242b88c607f55…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < c7012fc73dab4829404fedeeaa8531f12ac8545f (git) Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < 51afaf919bbaacdd9cc9e146033ae0a743a42dd7 (git) Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < 1899edac312ef17a7234851686e8a703f56d0a84 (git) Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < 9c6159d5b72d5fc265cce5da04f27d730b552e69 (git) Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < 6287e0c01ccb818e7214f88d885ffb7c9e81b0e0 (git) Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < 0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae (git) Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < 6ffe44f022c95b1b29c691d2169c5abc046f7580 (git) Affected: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 , < 3cbc242b88c607f55da3d0d0d336b49bf1e20412 (git)
Linux	Linux	Affected: 3.0 Unaffected: 0 , < 3.0 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
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          "programFiles": [
            "drivers/usb/renesas_usbhs/common.c"
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          "versions": [
            {
              "status": "affected",
              "version": "3.0"
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              "version": "0",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: renesas_usbhs: fix use-after-free in ISR during device removal\n\nIn usbhs_remove(), the driver frees resources (including the pipe array)\nwhile the interrupt handler (usbhs_interrupt) is still registered. If an\ninterrupt fires after usbhs_pipe_remove() but before the driver is fully\nunbound, the ISR may access freed memory, causing a use-after-free.\n\nFix this by calling devm_free_irq() before freeing resources. This ensures\nthe interrupt handler is both disabled and synchronized (waits for any\nrunning ISR to complete) before usbhs_pipe_remove() is called."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:24:21.643Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7"
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        },
        {
          "url": "https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412"
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      ],
      "title": "usb: renesas_usbhs: fix use-after-free in ISR during device removal",
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    "state": "PUBLISHED"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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