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CVE-2026-81005

kernel: ipmi: si: Fix NULL pointer dereference after failed registration

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Severity

Moderate

Red Hat Product Security

4.1

CVSS 3.1

Review impact separately from score.

Published · September 11, 2026

Updated · September 29, 2026

Description

A flaw was found in the Linux kernel's Intelligent Platform Management Interface (IPMI) subsystem. During the registration of an IPMI message handler, if the Baseboard Management Controller (BMC) device information cannot be fetched, a NULL pointer dereference can occur. This can allow a local attacker to trigger a kernel crash, resulting in a denial of service.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference