Resource exhaustion in Linux kernel - CVE-2026-23376
Published: March 25, 2026
Vulnerability identifier: #VU124461
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-2026-23376
CWE-ID: CWE-400
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 input validation in the nvmet-fcloop component when handling LS request responses. A local user can send a specially crafted request to cause a denial of service.
The issue arises from incorrect handling of the lsrsp->done callback when the remoteport->port_state is not FC_OBJSTATE_ONLINE, leading to resource deallocation inconsistencies and potential system instability.
How to mitigate CVE-2026-23376
Install security update from vendor's repository.