CVE-2026-98154
Received Received - Intake

NVMe RDMA Host Path Error Cleanup Order Fix

Publication date: 2026-09-25

Last updated on: 2026-09-25

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: nvme-rdma: fix -EIO cleanup order in queue_rq On -EIO, the RDMA queue_rq path reports a host path error and then still cleans up the command and unmaps the SQE DMA. The path error helper completes the request, so that is double cleanup and DMA unmap after the request is already complete. Unmap the SQE first, then report the host path error. Skip the outer command cleanup on that path.

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Meta Information

Published
2026-09-25
Last Modified
2026-09-25
Generated
2026-09-25
AI Q&A
2026-09-25
EPSS Evaluated
N/A
NVD
CVE-2026-98154
EUVD
EUVD-2026-86985

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves incorrect cleanup handling in the NVMe over RDMA driver. When an error occurs during I/O operations, the system attempts to clean up the command and unmap DMA memory after the request is already completed, leading to a double cleanup issue.

Detection Guidance

This vulnerability is specific to the Linux kernel's nvme-rdma driver and does not have a direct network or system detection method provided. It involves a cleanup order issue in the RDMA queue_rq path. Monitoring kernel logs for nvme-rdma related errors or crashes may help identify exploitation attempts.

Impact Analysis

This flaw could cause system instability or crashes due to improper resource cleanup after errors. It may lead to data corruption or unexpected behavior in applications relying on NVMe over RDMA storage.

Mitigation Strategies

Apply the latest Linux kernel patches that address this issue. If using a distribution kernel, update to the patched version. For custom kernels, ensure the fix for nvme-rdma cleanup order is included. Restart systems after applying updates to ensure the patched kernel is active.

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