CVE-2026-97913
Received Received - Intake

Ethosu Command Stream Stop Op Missing in Linux Kernel

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: accel: ethosu: Ensure cmd stream ends with a stop op While the QSIZE register setting should prevent an out of bounds access of the command stream, it is not clear whether the h/w generates an interrupt in this case as is required (to prevent a timeout). As a stop op is expected end of the command stream, let's just ensure it is present. A stop op in the middle of the command stream also makes no sense.

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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-2026-97913
EUVD
EUVD-2026-86767

Affected Vendors & Products

Currently, no data is known.

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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 a potential issue where the command stream for the Ethosu accelerator might not end with a stop operation. While a register setting should prevent out-of-bounds access, it is unclear if hardware generates a required interrupt to avoid a timeout. Ensuring the command stream ends with a stop op prevents this issue.

Impact Analysis

This vulnerability could lead to system instability or crashes if the Ethosu accelerator's command stream is not properly terminated. It may cause timeouts or unexpected behavior in hardware operations, potentially disrupting system performance.

Mitigation Strategies

Update the Linux kernel to the latest patched version to resolve the accel: ethosu command stream vulnerability. Ensure the stop operation is properly included at the end of the command stream to prevent out of bounds access.

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