SB2026032568 - Resource exhaustion in Linux kernel nvme target driver
Published: March 25, 2026
Security Bulletin ID
SB2026032568
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2026-23376)
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.
Remediation
Install update from vendor's website.