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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d cve-icon cve-icon
https://git.kernel.org/stable/c/39bd4097292fd8564cf2cfba9356f8ab11e38d12 cve-icon cve-icon
https://git.kernel.org/stable/c/6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a cve-icon cve-icon
https://git.kernel.org/stable/c/72c0a063489be183cfb99e7050aaef503bdb6449 cve-icon cve-icon
https://git.kernel.org/stable/c/7784caa413a89487dd14dd5c41db8753483b2acb cve-icon cve-icon
https://git.kernel.org/stable/c/7fa72c369c23c27d1f64883c1e276af950557fb1 cve-icon cve-icon
https://git.kernel.org/stable/c/d4f1c45bdff3f393f9ab7e76795901c442b9eb76 cve-icon cve-icon
https://git.kernel.org/stable/c/e14a0dcdf468c3ad616bb06696c7c64c36e736d8 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2026050850-CVE-2026-43429-70a3@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-43429 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-43429 cve-icon
History

Sat, 09 May 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Sat, 09 May 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Fri, 08 May 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
CWE-770

Fri, 08 May 2026 14:45:00 +0000

Type Values Removed Values Added
Description 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.
Title USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-08T14:22:01.739Z

Reserved: 2026-05-01T14:12:56.009Z

Link: CVE-2026-43429

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-08T15:16:55.117

Modified: 2026-05-08T15:16:55.117

Link: CVE-2026-43429

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-05-08T00:00:00Z

Links: CVE-2026-43429 - Bugzilla