CVE-2026-46103

Updated on 27 May 2026

Severity

5.5 Medium severity

Details

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

Overview

About vulnerability

In the Linux kernel, the following vulnerability has been resolved:

can: ucan: fix devres lifetime

USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes).

Fix the control message buffer lifetime so that it is released on driver unbind.

Details

Affected packages:
linux @ 4.19.0 (+5 more)

Fixes

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
Debian 11 Planned
Debian 11 cloud Planned
Debian 12 Planned
Debian 13 Released
6 kernels
  • 6.12.85-1
  • 6.12.73-1
  • 6.12.63-1
  • 6.12.74-1
  • 6.12.69-1
  • 6.12.74-2
Ubuntu 24.04 Planned