SB20260528169 - Race condition in Linux kernel sw rxe driver

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Main Vulnerability Database SB20260528169

SB20260528169 - Race condition in Linux kernel sw rxe driver

Published: May 28, 2026

Security Bulletin ID SB20260528169
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Race condition (CVE-ID: CVE-2026-45910)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 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


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in QP timer handlers in the RDMA rxe subsystem when handling Queue Pair timer callbacks during Queue Pair destruction. A local user can trigger concurrent timer activity and Queue Pair teardown to cause a denial of service.

The issue can lead to a reference count underflow and use-after-free warning during timer handler execution.


Remediation

Install update from vendor's website.

References