Improper resource shutdown or release in Linux kernel - CVE-2026-43428
Published: May 8, 2026
Vulnerability identifier: #VU130762
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43428
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in usb_control_msg(), usb_bulk_msg(), and usb_interrupt_msg() APIs in usbcore when handling USB message timeouts. A local user can trigger an excessively long synchronous timeout to cause a denial of service.
Exploitation can leave a task stuck in an uninterruptible wait until the target device is unplugged.
How to mitigate CVE-2026-43428
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/06d2bbc4c66c6b0e8a43728c4949026026a5be67
- https://git.kernel.org/stable/c/1015c27a5e1a63efae2b18a9901494474b4d1dc3
- https://git.kernel.org/stable/c/24b31a227f679a942d820840a4dea7f0c09a387f
- https://git.kernel.org/stable/c/2d34cb4d1d6283b4be9c78f4a83ed6956d3069ec
- https://git.kernel.org/stable/c/4e86f5b79e62ded7e3c3ebd688cf5775e618148a
- https://git.kernel.org/stable/c/64f3d75633aedc12bdff220e9a4337177430bd9d
- https://git.kernel.org/stable/c/659c0c7d50a4b0f6aa197c4c098cfd91daf63862
- https://git.kernel.org/stable/c/6c62935670acdbb7687ced20494923b66fbb0367