CVE-2026-43429 (GCVE-0-2026-43429)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:22 – Updated: 2026-05-08 14:22
VLAI?
Title
USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts The usbtmc driver accepts timeout values specified by the user in an ioctl command, and uses these timeouts for some usb_bulk_msg() calls. Since the user can specify arbitrarily long timeouts and usb_bulk_msg() uses unkillable waits, call usb_bulk_msg_killable() instead to avoid the possibility of the user hanging a kernel thread indefinitely.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 048c6d88a0214757926f264823829e79154fcd4f , < e14a0dcdf468c3ad616bb06696c7c64c36e736d8 (git)
Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 7fa72c369c23c27d1f64883c1e276af950557fb1 (git)
Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 72c0a063489be183cfb99e7050aaef503bdb6449 (git)
Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 39bd4097292fd8564cf2cfba9356f8ab11e38d12 (git)
Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d (git)
Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a (git)
Affected: 048c6d88a0214757926f264823829e79154fcd4f , < d4f1c45bdff3f393f9ab7e76795901c442b9eb76 (git)
Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 7784caa413a89487dd14dd5c41db8753483b2acb (git)
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    Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (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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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/usb/class/usbtmc.c"
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      "cpeApplicability": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts\n\nThe usbtmc driver accepts timeout values specified by the user in an\nioctl command, and uses these timeouts for some usb_bulk_msg() calls.\nSince the user can specify arbitrarily long timeouts and\nusb_bulk_msg() uses unkillable waits, call usb_bulk_msg_killable()\ninstead to avoid the possibility of the user hanging a kernel thread\nindefinitely."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-08T14:22:01.739Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "dateReserved": "2026-05-01T14:12:56.009Z",
    "dateUpdated": "2026-05-08T14:22:01.739Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-05-10",
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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.



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