CVE-2026-43429

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (8)

Core 8

Scores

CVSS v3 5.5
EPSS 0.0012
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (27)
linux/Kernel 4.19.0 - 5.10.253linux
linux/Kernel 5.11.0 - 5.15.203linux
linux/Kernel 5.16.0 - 6.1.167linux
linux/Kernel 6.13.0 - 6.18.19linux
linux/Kernel 6.19.0 - 6.19.9linux
linux/Kernel 6.2.0 - 6.6.130linux
linux/Kernel 6.7.0 - 6.12.78linux
Linux/Linux < 4.19
Linux/Linux 048c6d88a0214757926f264823829e79154fcd4f - 0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d
Linux/Linux 048c6d88a0214757926f264823829e79154fcd4f - 39bd4097292fd8564cf2cfba9356f8ab11e38d12
... and 17 more
Published May 08, 2026
Tracked Since May 08, 2026