Medium 5.5Published May 8, 2026

CVE-2026-43429USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts

Updated under an hour ago (Oct 27, 2026, 2:10 PM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 048c6d88a0214757926f264823829e79154fcd4f before e14a0dcdf468c3ad616bb06696c7c64c36e736d8; 048c6d88a0214757926f264823829e79154fcd4f builds before 7fa72c369c23c27d1f64883c1e276af950557fb1; from 048c6d88a0214757926f264823829e79154fcd4f before 72c0a063489be183cfb99e7050aaef503bdb6449; 048c6d88a0214757926f264823829e79154fcd4f builds before 39bd4097292fd8564cf2cfba9356f8ab11e38d12; from 048c6d88a0214757926f264823829e79154fcd4f before 0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d; 048c6d88a0214757926f264823829e79154fcd4f builds before 6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a; from 048c6d88a0214757926f264823829e79154fcd4f before d4f1c45bdff3f393f9ab7e76795901c442b9eb76; from 048c6d88a0214757926f264823829e79154fcd4f before 7784caa413a89487dd14dd5c41db8753483b2acb	CNA record
linux linux_kernel linux:linux_kernel	from 4.19 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.78; from 6.13 before 6.18.19; from 6.19 before 6.19.9; 7.0; and 3 more ranges	NVD

References

References

https://git.kernel.org/stable/c/e14a0dcdf468c3ad616bb06696c7c64c36e736d8	patch
https://git.kernel.org/stable/c/7fa72c369c23c27d1f64883c1e276af950557fb1	patch
https://git.kernel.org/stable/c/72c0a063489be183cfb99e7050aaef503bdb6449	patch
https://git.kernel.org/stable/c/39bd4097292fd8564cf2cfba9356f8ab11e38d12	patch
https://git.kernel.org/stable/c/0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d	patch
https://git.kernel.org/stable/c/6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a	patch
https://git.kernel.org/stable/c/d4f1c45bdff3f393f9ab7e76795901c442b9eb76	patch
https://git.kernel.org/stable/c/7784caa413a89487dd14dd5c41db8753483b2acb	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.