CVE-2026-90150
kernel: pnfs/blocklayout: Fix device leaks on parse failure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 1, 2026
Description
A flaw was found in the Linux kernel's pnfs/blocklayout component. When parsing certain device layouts, specifically in the bl_parse_concat() and bl_parse_stripe() functions, a failure to parse a child device could result in the device not being properly released. This can lead to resource leaks, potentially causing system instability or a Denial of Service (DoS). Additionally, the bl_parse_scsi() function could fail in a way that leads to a double release of file references, further contributing to system instability.
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