CVE-2026-31536

kernel: smb: server: let send_done handle a completion without IB_SEND_SIGNALED

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Severity

Low

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · April 24, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's Server Message Block (SMB) direct server implementation. This issue occurs during smbdirect_send_batch processing where requests without the IB_SEND_SIGNALED flag may be incorrectly handled when a connection is broken. This could lead to unexpected behavior related to request completion and resource management within the SMB server.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-166 · Improper Handling of Missing Special Element