CVE-2026-43192
kernel: dm mpath: Add missing dm_put_device when failing to get scsi dh name
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 6, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's device-mapper multipath (dm mpath) subsystem. A missing cleanup operation occurs when the system fails to retrieve a SCSI device handler name due to memory allocation issues. This oversight can lead to a resource leak, where references to path devices are not properly released. Over time, this resource exhaustion could allow a local attacker to cause a Denial of Service (DoS) by making 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-911 · Improper Update of Reference Count