CVE-2026-43314
kernel: dm: remove fake timeout to avoid leak request
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 8, 2026
Updated · July 3, 2026
Description
A flaw was found in the Linux kernel's device mapper (dm) driver. When an I/O timeout failure is intentionally introduced to a device mapper device, the driver does not correctly manage the timeout. This oversight causes a request to remain uncompleted, leading to system tasks hanging indefinitely. This vulnerability can result in a Denial of Service (DoS) condition, rendering the system unresponsive.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime