CVE-2026-45997
kernel: scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 27, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's SCSI disk (sd) driver. When adding a new device, a failure in device_add() can lead to a resource leak where a gendisk remains referenced but is not properly freed. This missing cleanup, specifically the put_disk() call, can result in resource exhaustion. A local attacker could potentially exploit this to cause a Denial of Service (DoS) on the system.
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