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

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


Detection rules are retrieved from Rulezet.