CVE Database›CVE-2026-31711

CVE-2026-31711

kernel: smb: server: fix active_num_conn leak on transport allocation failure

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Severity

Moderate

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · May 1, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's ksmbd server. An unauthenticated remote attacker can exploit this by holding open connections with large data lengths, leading to a leak of connection resources. This resource exhaustion can prevent new legitimate connections from being established, resulting in a Denial of Service (DoS) for the ksmbd server.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-911 · Improper Update of Reference Count