CVE-2026-23061
kernel: Linux kernel: Denial of Service in kvaser_usb CAN driver due to memory leak
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 4, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's kvaser_usb Controller Area Network (CAN) driver. A local, low-privileged user could exploit a memory leak in the kvaser_usb_read_bulk_callback() function. This occurs because USB Request Blocks (URBs) are not properly unanchored and freed, leading to memory exhaustion and a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime